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PRC: Nuclear Reactions

Recently published articles in Phys. Rev. C in the Table of Content section "Nuclear Reactions"

Published: 2017-11-17T23:02:08+00:00


New determination of proton spectroscopic factors and reduced widths for $^{8}\mathrm{Be}$ states in the 16.5–18.0 MeV excitation energy region via the study of the $^{7}\mathrm{Li}(^{3}\mathrm{He},d)^{8}\mathrm{Be}$ transfer reaction at ${E}_{\mathrm{lab}}=20$ MeV: Implication for the $^{7}\mathrm{Li}(p,α)^{4}\mathrm{He}$ hydrogen burning reaction


Author(s): A. Belhout, S. Ouichaoui, H. Beaumevieille, A. Bouchemha, G. Bogaert, S. Fortier, J. Kiener, A. Lefebvre-Schuhl, J. M. Maison, L. Rosier, J. Rotbard, V. Tatischeff, J. P. Thibaud, and J. Vernotte

The angular distributions of $^{8}\mathrm{Be}$ states in the excitation energy region ${E}_{x}∼(16.5\text{–}18.2)$ MeV produced in the $^{7}\mathrm{Li}(^{3}\mathrm{He},d)^{8}\mathrm{Be}$ proton transfer reaction have been measured at the Orsay $14.8−\mathrm{MV}$ tandem accelerator for $^{3}\mathrm{H...

[Phys. Rev. C 96, 054601] Published Fri Nov 03, 2017

Enhanced nucleon transfer in tip collisions of $^{238}\mathrm{U}+^{124}\mathrm{Sn}$


Author(s): Kazuyuki Sekizawa

Multinucleon transfer processes in low-energy heavy ion reactions have attracted increasing interest in recent years aiming at the production of new neutron-rich isotopes. Clearly, it is an imperative task to further develop understanding of underlying reaction mechanisms to lead experiments to succ...

[Phys. Rev. C 96, 041601(R)] Published Mon Oct 30, 2017

Incomplete fusion analysis of the $^{7}\mathrm{Li}$-induced reaction on $^{93}\mathrm{Nb}$ within 3–6.5 MeV/nucleon


Author(s): Deepak Kumar and Moumita Maiti

Background: It is understood from the recent experimental studies that prompt/resonant breakup, and transfer followed by breakup in the weakly bound $^{6,7}\mathrm{Li}$-induced reactions play a significant role in the complete-incomplete fusion (CF-ICF), suppression/enhancement in the fusion cross s...

[Phys. Rev. C 96, 044624] Published Mon Oct 30, 2017

Dynamical deformation in heavy ion reactions and the characteristics of quasifission products


Author(s): S. Q. Guo, Y. Gao, J. Q. Li, and H. F. Zhang

The investigation of the characteristics of low-energy heavy ion reactions covering both fusion and quasifission is carried out within the dinuclear system (DNS) concept, which is developed to include the deformation variables of fragments in addition to the mass numbers of the fragments, so that th...

[Phys. Rev. C 96, 044622] Published Thu Oct 26, 2017

Accurate $^{238}\mathrm{U}$($n, 2n$)$^{237}\mathrm{U}$ reaction cross-section measurements from 6.5 to 14.8 MeV


Author(s): Krishichayan, M. Bhike, W. Tornow, A. P. Tonchev, and T. Kawano

The cross section for the $^{238}\mathrm{U}(n,2n)^{237}\mathrm{U}$ reaction has been measured in the incident neutron energy range from 6.5 to 14.8 MeV in small energy steps using an activation technique. Monoenergetic neutron beams were produced via the $^{2}\mathrm{H}(d,n)^{3}\mathrm{He}$ and $^{3...

[Phys. Rev. C 96, 044623] Published Thu Oct 26, 2017

Nuclear-state engineering in tripod systems using x-ray laser pulses


Author(s): B. Nedaee-Shakarab, M. Saadati-Niari, and F. Zolfagharpour

Coherent superposition of nuclear states in tripod systems using three x-ray laser pulses is investigated theoretically. The laser pulses transfer the population from one ground state to an arbitrary superposition of other ground states using coincident pulses and stimulated Raman adiabatic passage ...

[Phys. Rev. C 96, 044619] Published Tue Oct 24, 2017

Cross section measurement for the $^{10}\mathrm{B}(n,t2α)$ three-body reaction at 4.0, 4.5, and 5.0 MeV. I. Prediction of the experimental spectrum


Author(s): Zhimin Wang, Huaiyong Bai, Luyu Zhang, Haoyu Jiang, Yi Lu, Jinxiang Chen, Guohui Zhang, Yu. M. Gledenov, M. V. Sedysheva, and G. Khuukhenkhuu

Cross sections of the $^{10}\mathrm{B}(n,t2α)$ three-body reaction were measured at ${E}_{n}=4.0,4.5$, and 5.0 MeV using a twin gridded ionization chamber and a thin-film $^{10}\mathrm{B}$ sample. The present paper is the first part of the work. The experimental spectrum of the $^{10}\mathrm{B}(n,t2...

[Phys. Rev. C 96, 044620] Published Tue Oct 24, 2017

Cross section measurement for the $^{10}\mathrm{B}(n,t2α)$ three-body reaction at 4.0, 4.5, and 5.0 MeV. II. Experimental setup and results


Author(s): Zhimin Wang, Huaiyong Bai, Luyu Zhang, Haoyu Jiang, Yi Lu, Jinxiang Chen, Guohui Zhang, Yu. M. Gledenov, M. V. Sedysheva, and G. Khuukhenkhuu

Cross sections of the $^{10}\mathrm{B}(n,t2α)$ three-body reaction were measured at ${E}_{n}=4.0$, 4.5, and 5.0 MeV using a twin gridded ionization chamber and a thin-film $^{10}\mathrm{B}$ sample. The present paper is the second part of the work. A digital data-acquisition system was developed for ...

[Phys. Rev. C 96, 044621] Published Tue Oct 24, 2017

Activation cross section and isomeric cross section ratios for the ($n,2n$) reaction on $^{153}\mathrm{Eu}$


Author(s): Junhua Luo, Li Jiang, and Suyuan Li

The $^{153}\mathrm{Eu}(n,2n)^{152}\mathrm{Eu}^{\mathrm{m}1,\mathrm{m}2,g}$ cross section was measured by means of the activation technique at three neutron energies in the range 13–15 MeV. The quasimonoenergetic neutron beam was formed via the $^{3}\mathrm{H}(d,n)^{4}\mathrm{He}$ reaction, in the Pd...

[Phys. Rev. C 96, 044617] Published Mon Oct 23, 2017

Simulating spin dynamics with spin-dependent cross sections in heavy-ion collisions


Author(s): Yin Xia, Jun Xu, Bao-An Li, and Wen-Qing Shen

We have incorporated the spin-dependent nucleon-nucleon cross sections into a Boltzmann-Uehling-Uhlenbeck transport model for the first time, using the spin-singlet and spin-triplet nucleon-nucleon elastic scattering cross sections extracted from the phase-shift analyses of nucleon-nucleon scatterin...

[Phys. Rev. C 96, 044618] Published Mon Oct 23, 2017

Investigation of large $α$ production in reactions involving weakly bound $^{7}\mathrm{Li}$


Author(s): S. K. Pandit, A. Shrivastava, K. Mahata, V. V. Parkar, R. Palit, N. Keeley, P. C. Rout, A. Kumar, K. Ramachandran, S. Bhattacharyya, V. Nanal, C. S. Palshetkar, T. N. Nag, Shilpi Gupta, S. Biswas, S. Saha, J. Sethi, P. Singh, A. Chatterjee, and S. Kailas

The origin of the large $α$-particle production cross sections in systems involving weakly bound $^{7}\mathrm{Li}$ projectiles has been investigated by measuring the cross sections of all possible fragment-capture as well as complete fusion using the particle-$γ$ coincidence, in-beam, and off-beam $...

[Phys. Rev. C 96, 044616] Published Thu Oct 19, 2017

Long-range versus short-range correlations in the two-neutron transfer reaction $^{64}\mathrm{Ni}(^{18}\mathrm{O},^{16}\mathrm{O})^{66}\mathrm{Ni}$


Author(s): B. Paes, G. Santagati, R. Magana Vsevolodovna, F. Cappuzzello, D. Carbone, E. N. Cardozo, M. Cavallaro, H. García-Tecocoatzi, A. Gargano, J. L. Ferreira, S. M. Lenzi, R. Linares, E. Santopinto, A. Vitturi, and J. Lubian

Recently, various two-neutron transfer studies using the $(^{18}\mathrm{O},^{16}\mathrm{O})$ reaction were performed with a large success. This was achieved because of a combined use of the microscopic quantum description of the reaction mechanism and of the nuclear structure. In the present work we...

[Phys. Rev. C 96, 044612] Published Wed Oct 18, 2017

$α$-decay chains of superheavy $^{265−279}\mathrm{Mt}$ isotopes


Author(s): K. P. Santhosh and C. Nithya

The $α$-decay chains of the isotopes $^{265−279}\mathrm{Mt}$ are predicted by comparing the $α$ half-lives calculated within the Coulomb and proximity potential model for deformed nuclei of Santhosh et al. [Nucl. Phys. A 850, 34 (2011)] with the spontaneous fission half-lives using the shell-effect...

[Phys. Rev. C 96, 044613] Published Wed Oct 18, 2017

Systematic study of low-energy incomplete fusion: Role of entrance channel parameters


Author(s): Abhishek Yadav, Pushpendra P. Singh, Mohd. Shuaib, Vijay R. Sharma, Indu Bala, Unnati, Sunita Gupta, D. P. Singh, M. K. Sharma, R. Kumar, S. Murlithar, R. P. Singh, B. P. Singh, and R. Prasad

An attempt has been made to investigate the role of various entrance channel parameters in low-energy ($≈4\text{–}7$ MeV/nucleon) incomplete fusion reactions through excitation function measurements. The analysis of measured excitation functions, in the framework of statistical model code pace4, rev...

[Phys. Rev. C 96, 044614] Published Wed Oct 18, 2017

Abnormal behavior of the optical potential for the halo nuclear system $^{6}\mathrm{He}+^{209}\mathrm{Bi}$


Author(s): L. Yang (杨磊), C. J. Lin (林承键), H. M. Jia (贾会明), D. X. Wang (王东玺), N. R. Ma (马南茹), L. J. Sun (孙立杰), F. Yang (杨峰), X. X. Xu (徐新星), Z. D. Wu (吴振东), H. Q. Zhang (张焕乔), and Z. H. Liu (刘祖华)

In a recent transfer reaction measurement of $^{208}\mathrm{Pb}$($^{7}\mathrm{Li},^{6}\mathrm{He}$)$^{209}\mathrm{Bi}$ at energies around and below the Coulomb barrier, the optical model potentials of the halo nuclear system $^{6}\mathrm{He}+^{209}\mathrm{Bi}$ were extracted by fitting the experimen...

[Phys. Rev. C 96, 044615] Published Wed Oct 18, 2017

Consistent optical potential for incident and emitted low-energy $α$ particles. II. $α$ emission in fast-neutron-induced reactions on Zr isotopes


Author(s): V. Avrigeanu and M. Avrigeanu

Background: Challenging questions of the $α$-particle optical-model potential (OMP) are still pointed out by recent high-precision measurements of $α$-induced reaction data below the Coulomb barrier. Moreover, the reliability of a previous OMP for $α$ particles on nuclei within the mass number range...

[Phys. Rev. C 96, 044610] Published Mon Oct 16, 2017

Spins of complex fragments in binary reactions within a dinuclear system model


Author(s): H. Paşca, Sh. A. Kalandarov, G. G. Adamian, and N. V. Antonenko

The average angular momenta and widths of the spin distributions of reaction products are calculated within the dinuclear system model. The thermal excitation of rotational bearing modes is considered in the dinuclear system. The calculated fragment spins ($γ$ multiplicities) and their variances in ...

[Phys. Rev. C 96, 044611] Published Mon Oct 16, 2017

Observation of annual modulation induced by $γ$ rays from ($α,γ$) reactions at the Soudan Underground Laboratory


Author(s): Ashok Tiwari, C. Zhang, D.-M. Mei, and P. Cushman

Annual modulation of $γ$ rays from ($α,γ$) reactions in the Soudan Underground Laboratory was observed using a 12-liter scintillation detector. This significant annual modulation, measured over 4 years, can mimic the signature for dark matter and can also generate potential background events for neu...

[Phys. Rev. C 96, 044609] Published Thu Oct 12, 2017

Mass distribution and mass-resolved angular distribution in the $^{16}\mathrm{O}+^{238}\mathrm{U}$ reaction at sub-barrier energy


Author(s): T. N. Nag, R. Tripathi, S. Sodaye, K. Sudarshan, K. Ramachandran, B. K. Nayak, and P. K. Pujari

Background: The angular distribution of fission fragments or products is a sensitive probe to investigate non-compound-nucleus (NCN) fission. However, the gross angular distribution cannot distinguish between different NCN fission processes. Both preequilibrium fission and quasifission contribute to...

[Phys. Rev. C 96, 044608] Published Wed Oct 11, 2017

Preequilibrium neutron emission from O + Al at 7.5 MeV/nucleon and 8.8 MeV/nucleon


Author(s): Sabyasachi Paul, C. Sunil, Sanjoy Pal, V. Nanal, V. Suman, G. S. Sahoo, A. Shanbhag, S. P. Tripathy, T. Bandyopadhyay, M. Nandy, and A. K. Mohanty

The thick target neutron yield from a ${}^{16}{\mathrm{O}}^{6+}$ beam on a thick $^{27}\mathrm{Al}$ target at 120- and 142-MeV (7.5- and 8.8-MeV/nucleon, respectively) incident energies is presented and compared with theoretical calculations. The theoretical estimates for the yield of a high-energy ...

[Phys. Rev. C 96, 044607] Published Tue Oct 10, 2017

Modeling pion production in heavy-ion collisions at intermediate energies


Author(s): Gao-Chan Yong

Pion production in nucleus-nucleus collisions at intermediate energies was modeled in the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model. The effects of nucleon-nucleon short-range correlations in initialization and mean-field potential, isospin-dependent in-medium ba...

[Phys. Rev. C 96, 044605] Published Mon Oct 09, 2017

Experimental and evaluated photoneutron cross sections for $^{197}\mathrm{Au}$


Author(s): V. Varlamov, B. Ishkhanov, and V. Orlin

There is a serious well-known problem of noticeable disagreements between the partial photoneutron cross sections obtained in various experiments. Such data were mainly determined using quasimonoenergetic annihilation photon beams and the method of neutron multiplicity sorting at Lawrence Livermore ...

[Phys. Rev. C 96, 044606] Published Mon Oct 09, 2017

Photoneutron cross-section measurements in the $^{209}\mathrm{Bi}$($γ,xn$) reaction with a new method of direct neutron-multiplicity sorting


Author(s): I. Gheorghe, H. Utsunomiya, S. Katayama, D. Filipescu, S. Belyshev, K. Stopani, V. Orlin, V. Varlamov, T. Shima, S. Amano, S. Miyamoto, Y.-W. Lui, T. Kawano, and S. Goriely

Photoneutron cross sections were measured in the $^{209}\mathrm{Bi}$($γ, xn$) reaction with $x=1–4$ at energies from the neutron threshold to 40 MeV using quasimonochromatic laser Compton-scattering $γ$-ray beams. A novel technique of direct neutron-multiplicity sorting with a flat-efficiency detect...

[Phys. Rev. C 96, 044604] Published Fri Oct 06, 2017

Comprehensive analysis of high-lying states in $^{18}\mathrm{O}$ populated with $(t,p)$ and $(^{18}\mathrm{O},^{16}\mathrm{O})$ reactions


Author(s): M. J. Ermamatov, R. Linares, J. Lubian, J. L. Ferreira, F. Cappuzzello, D. Carbone, M. Cavallaro, M. Cubero, P. N. de Faria, A. Foti, G. Santagati, and V. A. B. Zagatto

Background: In our recent work [M. J. Ermamatov et al., Phys. Rev. C 94, 024610 (2016)], the two-neutron transfer induced by the $(^{18}\mathrm{O},^{16}\mathrm{O})$ reaction was studied for $^{16}\mathrm{O}$ nucleus. Theoretical analysis of the low-lying states of $^{18}\mathrm{O}$ indicates that t...

[Phys. Rev. C 96, 044603] Published Wed Oct 04, 2017

Extraction of $t$ slopes from experimental $γp→{K}^{+}\mathrm{Λ}$ and $γp→{K}^{+}{\mathrm{Σ}}^{0}$ cross section data


Author(s): Adam Freese, Daniel Puentes, Shankar Adhikari, Rafael Badui, Lei Guo, and Brian Raue

We analyze recent ${K}^{+}$ meson photoproduction data from the CLAS collaboration for the reactions $γp→{K}^{+}\mathrm{Λ}$ and $γp→{K}^{+}{\mathrm{Σ}}^{0}$, fitting measured forward-angle differential cross sections to the form $A{e}^{Bt}$. We develop a quantitative scheme for determining the kinem...

[Phys. Rev. C 96, 044601] Published Mon Oct 02, 2017

Potential for $α$-induced nuclear scattering, reaction and decay, and a resonance-pole-decay model with exact explicit analytical solutions


Author(s): Basudeb Sahu and Swagatika Bhoi

The decay of $α$ particle from a nucleus is viewed as a quantum resonance state of a two-body scattering process of the $α$+daughter nucleus pair governed by a novel nucleus-nucleus potential in squared Woods-Saxon form. By the application of the rigorous optical model (OM) potential scattering ($S$...

[Phys. Rev. C 96, 044602] Published Mon Oct 02, 2017

Relative mass distributions of neutron-rich thermally fissile nuclei within a statistical model


Author(s): Bharat Kumar, M. T. Senthil Kannan, M. Balasubramaniam, B. K. Agrawal, and S. K. Patra

We study the binary mass distribution for the recently predicted thermally fissile neutron-rich uranium and thorium nuclei using a statistical model. The level density parameters needed for the study are evaluated from the excitation energies of the temperature-dependent relativistic mean field form...

[Phys. Rev. C 96, 034623] Published Fri Sep 29, 2017

Transfer probabilities for the reactions $^{14,20}\mathrm{O}+^{20}\mathrm{O}$ in terms of multiple time-dependent Hartree-Fock-Bogoliubov trajectories


Author(s): Guillaume Scamps and Yukio Hashimoto

The transfer reaction between two nuclei in the superfluid phase is studied with the time-dependent Hartree-Fock-Bogoliubov (TDHFB) theory. To restore the symmetry of the relative gauge angle, a set of independent TDHFB trajectories is taken into account. Then, the transfer probability is computed u...

[Phys. Rev. C 96, 031602(R)] Published Wed Sep 27, 2017

Fission characteristics of the excited compound nucleus $^{210}\mathrm{Rn}$ in the framework of the four-dimensional dynamical model


Author(s): H. Eslamizadeh and E. Ahadi

The evaporation residue cross section, the anisotropy of the fission fragments angular distribution, the fission probability, the mass-energy distribution of the fission fragments, and the average prescission neutron multiplicity have been calculated for the compound nucleus $^{210}\mathrm{Rn}$ by u...

[Phys. Rev. C 96, 034621] Published Wed Sep 27, 2017

Isospin diffusion in binary collisions of $^{32}\mathrm{S}+^{40,48}\mathrm{Ca}$ and $^{32}\mathrm{S}+^{48}\mathrm{Ti}$ at 17.7 MeV/nucleon


Author(s): S. Piantelli et al.

The systems $^{32}\mathrm{S}+^{40,48}\mathrm{Ca}$ and $^{32}\mathrm{S}+^{48}\mathrm{Ti}$ at 17.7 MeV/nucleon were investigated with the setup general array for fragment identification and for emitted light particles in dissipative collisions (GARFIELD) plus ring counter (RCo) at Laboratori Nazionali...

[Phys. Rev. C 96, 034622] Published Wed Sep 27, 2017

Fusion hindrance at deep sub-barrier energies for the $^{11}\mathbf{B}+^{197}\mathbf{Au}$ system


Author(s): A. Shrivastava, K. Mahata, V. Nanal, S. K. Pandit, V. V. Parkar, P. C. Rout, N. Dokania, K. Ramachandran, A. Kumar, A. Chatterjee, and S. Kailas

Fusion cross sections for the $^{11}\mathrm{B}+^{197}\mathrm{Au}$ system have been measured at energies around and deep below the Coulomb barrier, to probe the occurrence of fusion hindrance in case of asymmetric systems. A deviation with respect to the standard coupled channels calculations has bee...

[Phys. Rev. C 96, 034620] Published Tue Sep 26, 2017

Description of proton radioactivity using the Coulomb and proximity potential model for deformed nuclei


Author(s): K. P. Santhosh and Indu Sukumaran

Half-life predictions have been performed for the proton emitters with $Z>50$ in the ground state and isomeric state using the Coulomb and proximity potential model for deformed nuclei (CPPMDN). The agreement of the calculated values with the experimental data made it possible to predict some pro...

[Phys. Rev. C 96, 034619] Published Mon Sep 25, 2017

Shadowing in low-energy photonuclear reactions


Author(s): Swapan Das

The photonuclear reaction in the multi-GeV region occurs because of the electromagnetic and hadronic interactions. The latter originates due to the hadronic fluctuation, i.e., vector meson, of the photon. The total cross section of the reaction is shadowed because of the vector meson–nucleus (hadron...

[Phys. Rev. C 96, 034616] Published Fri Sep 22, 2017

Nuclear-matter radius studies from $^{58}\mathrm{Ni}(α,α)$ experiments at the GSI Experimental Storage Ring with the EXL facility


Author(s): J. C. Zamora et al.

A novel method for measuring nuclear reactions in inverse kinematics with stored ion beams was successfully used to extract the nuclear-matter radius of $^{58}\mathrm{Ni}$. The experiment was performed at the experimental heavy-ion storage ring at the GSI facility using a stored $^{58}\mathrm{Ni}$ b...

[Phys. Rev. C 96, 034617] Published Fri Sep 22, 2017

$ϕ$ meson transparency in nuclei from $ϕN$ resonant interactions


Author(s): D. Cabrera, A. N. Hiller Blin, M. J. Vicente Vacas, and P. Fernández de Córdoba

We investigate the $ϕ$ meson nuclear transparency using some recent theoretical developments on the $ϕ$ in medium self-energy. The inclusion of direct resonant $ϕN$ scattering and the kaon decay mechanisms leads to a $ϕ$ width much larger than in most previous theoretical approaches. The model has b...

[Phys. Rev. C 96, 034618] Published Fri Sep 22, 2017

Role of dynamical deformation in pre-scission neutron multiplicity


Author(s): Neeraj Kumar, Shabnam Mohsina, Jhilam Sadhukhan, and Shashi Verma

The light-particle emission probability from an excited compound nucleus depends explicitly on the time-evolution of the system as the available internal excitation energy and, consequently, the particle decay widths depend on the instantaneous deformation of the nucleus. The Langevin dynamical mode...

[Phys. Rev. C 96, 034614] Published Thu Sep 21, 2017

Global description of the $^{7}\mathrm{Li}+p$ reaction at 5.44 MeV/u in a continuum-discretized coupled-channels approach


Author(s): A. Pakou, F. Cappuzzello, N. Keeley, L. Acosta, C. Agodi, X. Aslanoglou, S. Calabrese, D. Carbone, M. Cavallaro, A. Foti, G. Marquínez-Durán, I. Martel, M. Mazzocco, C. Parascandolo, D. Pierroutsakou, K. Rusek, O. Sgouros, V. Soukeras, E. Strano, V. A. B. Zagatto, and K. Zerva

The complete set of open channels for the $^{7}\mathrm{Li}+p$ system, namely elastic scattering, inelastic scattering, breakup, the $^{7}\mathrm{Li}+p\phantom{\rule{4pt}{0ex}}→\phantom{\rule{4pt}{0ex}}^{7}\mathrm{Be}+n$ charge exchange reaction, and the $^{7}\mathrm{Li}+p\phantom{\rule{4pt}{0ex}}→\p...

[Phys. Rev. C 96, 034615] Published Thu Sep 21, 2017

Evaporation residue cross-section measurements for $^{48}\mathrm{Ti}$-induced reactions


Author(s): Priya Sharma, B. R. Behera, Ruchi Mahajan, Meenu Thakur, Gurpreet Kaur, Kushal Kapoor, Kavita Rani, N. Madhavan, S. Nath, J. Gehlot, R. Dubey, I. Mazumdar, S. M. Patel, M. Dhibar, M. M. Hosamani, Khushboo, Neeraj Kumar, A. Shamlath, G. Mohanto, and Santanu Pal

Background: A significant research effort is currently aimed at understanding the synthesis of heavy elements. For this purpose, heavy ion induced fusion reactions are used and various experimental observations have indicated the influence of shell and deformation effects in the compound nucleus (CN...

[Phys. Rev. C 96, 034613] Published Wed Sep 20, 2017

Aspects of charge distribution measurement for $^{252}\mathrm{Cf}$(sf)


Author(s): Taofeng Wang, Guangwu Li, Liping Zhu, Or Hen, Gaolong Zhang, Qinghua Meng, Liming Wang, Hongyin Han, and Haihong Xia

Measurements of charge distributions of fragments in the spontaneous fission of $^{252}\mathrm{Cf}$ have been performed using a unique detector setup consisting of a typical grid-ionization chamber coupled with a $\mathrm{Δ}E−E$ charged particle telescope. We find that the fragment mass dependency o...

[Phys. Rev. C 96, 034611] Published Tue Sep 19, 2017

Predictions of characteristics of prompt-fission $γ$-ray spectra from the $n+^{238}\mathrm{U}$ reaction up to ${E}_{n}=20\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}$


Author(s): A. Oberstedt, R. Billnert, and S. Oberstedt

Systematics from 2001, describing prompt-fission $γ$-ray spectra (PFGS) characteristics as a function of mass and atomic number of the fissioning system, was revisited and parameters were revised, based on recent experimental results. Although originally expressed for spontaneous and thermal-neutron...

[Phys. Rev. C 96, 034612] Published Tue Sep 19, 2017

Synthesis of $^{292−303}119$ superheavy elements using Ca- and Ti-induced reactions


Author(s): K. P. Santhosh and V. Safoora

The synthesis of superheavy element $Z=119$ in the fusion evaporation reactions $^{42,44,46,48}\mathrm{Ca}+^{252−255}\mathrm{Es}$ and $^{46−50}\mathrm{Ti}+^{246−249}\mathrm{Bk}$ in the $3n$-, $4n$-, and $5n$-channels leading to $^{294−303}119$ and $^{292−299}119$, respectively, is evaluated. It is o...

[Phys. Rev. C 96, 034610] Published Mon Sep 18, 2017

Statistical ensembles and fragmentation of finite nuclei


Author(s): P. Das, S. Mallik, and G. Chaudhuri

Statistical models based on different ensembles are very commonly used to describe the nuclear multifragmentation reaction in heavy ion collisions at intermediate energies. Canonical model results are more appropriate for finite nuclei calculations while those obtained from the grand canonical ones ...

[Phys. Rev. C 96, 034609] Published Fri Sep 15, 2017

Fusion and quasifission studies for the $^{40}\mathrm{Ca}+^{186}\mathrm{W},^{192}\mathrm{Os}$ reactions


Author(s): E. Prasad, D. J. Hinde, E. Williams, M. Dasgupta, I. P. Carter, K. J. Cook, D. Y. Jeung, D. H. Luong, C. S. Palshetkar, D. C. Rafferty, K. Ramachandran, C. Simenel, and A. Wakhle

Background: All elements above atomic number 113 have been synthesized using hot fusion reactions with calcium beams on statically deformed actinide target nuclei. Quasifission and fusion-fission are the two major mechanisms responsible for the very low production cross sections of superheavy elemen...

[Phys. Rev. C 96, 034608] Published Thu Sep 14, 2017

Unexpected neutron/proton ratio and isospin effect in low-energy antiproton-induced reactions


Author(s): Zhao-Qing Feng

The inclusive spectra of pre-equilibrium nucleons produced in low-energy antiproton-nucleus collisions are thoroughly investigated within the the Lanzhou quantum molecular dynamics transport approach for the first time. The reaction channels of elastic scattering, annihilation, charge exchange, and ...

[Phys. Rev. C 96, 034607] Published Wed Sep 13, 2017

Relativistic effects in heavy-ion Coulomb scattering


Author(s): Ravinder Kumar, C. A. Bertulani, and G. Robinson

The role of relativistic corrections in heavy-ion Coulomb scattering at intermediate energies (${E}_{\text{lab}}≳50$ MeV/nucleon) is investigated by numerically solving a full set of coupled equations. We compare two methods: (a) one involving an exact account of interaction retardation and (b) a me...

[Phys. Rev. C 96, 034605] Published Tue Sep 12, 2017

From bare to renormalized order parameter in gauge space: Structure and reactions


Author(s): G. Potel, A. Idini, F. Barranco, E. Vigezzi, and R. A. Broglia

It is not physically obvious why one can calculate with similar accuracy, as compared to the experimental data, the absolute cross section associated with two-nucleon transfer processes between members of pairing rotational bands, making use of simple BCS (constant matrix elements) or of many-body [...

[Phys. Rev. C 96, 034606] Published Tue Sep 12, 2017

Three-nucleon interaction in heavy-ion collisions at intermediate energies


Author(s): R. Wada

The effect of a three-nucleon ($3N$) interaction is studied for the production of high energy protons in heavy-ion collisions in the incident energy range of 44 to $400\phantom{\rule{0.16em}{0ex}}A\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}$. The $3N$ interaction is incorporated into the antisymmetrize...

[Phys. Rev. C 96, 031601(R)] Published Tue Sep 05, 2017

Langevin model of low-energy fission


Author(s): Arnold J. Sierk

Background: Since the earliest days of fission, stochastic models have been used to describe and model the process. For a quarter century, numerical solutions of Langevin equations have been used to model fission of highly excited nuclei, where microscopic potential-energy effects have been neglecte...

[Phys. Rev. C 96, 034603] Published Tue Sep 05, 2017

Discovery of new isotopes $^{81,82}\mathrm{Mo}$ and $^{85,86}\mathrm{Ru}$ and a determination of the particle instability of ${}^{\mathbf{103}}\mathbf{Sb}$


Author(s): H. Suzuki et al.

A search for new proton-rich isotopes using projectile fragmentation of a 345-MeV/nucleon $^{124}\mathrm{Xe}$ beam has been performed with the BigRIPS in-flight separator at the RIKEN Nishina Center RI Beam Factory. Projectile fragments were identified by measuring the time of flight, magnetic rigid...

[Phys. Rev. C 96, 034604] Published Tue Sep 05, 2017

Phase-shift parametrization and extraction of asymptotic normalization constants from elastic-scattering data


Author(s): O. L. Ramírez Suárez and J.-M. Sparenberg

We introduce a simplified effective-range function for charged nuclei, related to the modified $K$ matrix but differing from it in several respects. Negative-energy zeros of this function correspond to bound states. Positive-energy zeros correspond to resonances and “echo poles” appearing in elastic...

[Phys. Rev. C 96, 034601] Published Fri Sep 01, 2017

Semiclassical calculations for the $^{156}\mathrm{Gd}$ (p,d) reaction


Author(s): Hafez A. Radi, John O. Rasmussen, and Raul J. Donangelo

Numerical semiclassical calculations are carried out to study the angular distribution of deuterons from the p,d pickup reaction of 25 MeV protons incident on the nucleus $^{156}\mathrm{Gd}$ and also its proton elastic scattering. It is found that, due to the rapid fall of the real optical potential...

[Phys. Rev. C 96, 034602] Published Fri Sep 01, 2017

Constraining the calculation of $^{234,236,238}\mathrm{U}(n,γ)$ cross sections with measurements of the $γ$-ray spectra at the DANCE facility


Author(s): J. L. Ullmann, T. Kawano, B. Baramsai, T. A. Bredeweg, A. Couture, R. C. Haight, M. Jandel, J. M. O'Donnell, R. S. Rundberg, D. J. Vieira, J. B. Wilhelmy, M. Krtička, J. A. Becker, A. Chyzh, C. Y. Wu, and G. E. Mitchell

The cross section for neutron capture in the continuum region has been difficult to calculate accurately. Previous results for $^{238}\mathrm{U}$ show that including an $M1$ scissors-mode contribution to the photon strength function resulted in very good agreement between calculation and measurement...

[Phys. Rev. C 96, 024627] Published Thu Aug 31, 2017

Transport properties of isospin asymmetric nuclear matter using the time-dependent Hartree-Fock method


Author(s): A. S. Umar, C. Simenel, and W. Ye

Background: The study of deep-inelastic reactions of nuclei provides a vehicle to explore nuclear transport phenomena for a full range of equilibration dynamics. These investigations provide us the ingredients to model such phenomena and help answer important questions about the nuclear equation of ...

[Phys. Rev. C 96, 024625] Published Wed Aug 30, 2017

Role of different parts of the nucleon-nucleon potential on fragment production in asymmetric collisions and their rapidity dependence


Author(s): Manpreet Kaur, Mandeep Kaur, and Varinderjit Kaur

The role of different parts of the nucleon-nucleon (NN) interaction potential on the production of light- and intermediate-mass fragments in different mass asymmetric reactions $^{120}\mathrm{Sn}+^{120}\mathrm{Sn}$ ($η=0$), $^{82}\mathrm{Kr}+^{158}\mathrm{Gd}$ ($η=0.3$), $^{56}\mathrm{Fe}+^{184}\mat...

[Phys. Rev. C 96, 024626] Published Wed Aug 30, 2017

Measurement of charge- and mass-changing cross sections for $^{4}\mathrm{He}+^{12}\mathrm{C}$ collisions in the energy range 80–220 MeV/u for applications in ion beam therapy


Author(s): Felix Horst, Christoph Schuy, Uli Weber, Kai-Thomas Brinkmann, and Klemens Zink

$^{4}\mathrm{He}$ ions are considered to be used for hadron radiotherapy due to their favorable physical and radiobiological properties. For an accurate dose calculation the fragmentation of the primary $^{4}\mathrm{He}$ ions occurring as a result of nuclear collisions must be taken into account. Th...

[Phys. Rev. C 96, 024624] Published Tue Aug 29, 2017

Measurement of the $^{209}\mathbf{Bi}(n,4n)^{206}\mathbf{Bi}$ and $^{169}\mathbf{Tm}(n,3n)^{167}\mathbf{Tm}$ cross sections between 23.5 and 30.5 MeV relevant to reaction-in-flight neutron studies at the National Ignition Facility


Author(s): M. E. Gooden, T. A. Bredeweg, B. Champine, D. C. Combs, S. Finch, A. Hayes-Sterbenz, E. Henry, Krishichayan, R. Rundberg, W. Tornow, J. Wilhelmy, and C. Yeamans

At the National Ignition Facility, experiments are being performed to measure charged-particle stopping powers in the previously unexplored warm dense plasma regime. These measurements are done using reaction-in-flight (RIF) neutrons from an inertial confinement fusion system. RIF neutrons are produ...

[Phys. Rev. C 96, 024622] Published Mon Aug 28, 2017

Subthreshold resonances and resonances in the $R$-matrix method for binary reactions and in the Trojan horse method


Author(s): A. M. Mukhamedzhanov, Shubhchintak, and C. A. Bertulani

In this paper we discuss the $R$-matrix approach to treat the subthreshold resonances for the single-level and one-channel and for the single-level and two-channel cases. In particular, the expression relating the asymptotic normalization coefficient (ANC) with the observable reduced width, when the...

[Phys. Rev. C 96, 024623] Published Mon Aug 28, 2017

New extended Skyrme interaction for nuclear properties and nuclear reactions


Author(s): Yongli Xu, Hairui Guo, Yinlu Han, and Qingbiao Shen

The extended Skyrme interaction involving additional momentum- and density-dependent terms is adopted to uniformly describe the properties of nuclear matter and finite nuclei, as well as the nuclear reaction properties. A new set of extended Skyrme interaction parameters is constructed by simultaneo...

[Phys. Rev. C 96, 024621] Published Fri Aug 25, 2017

Radiative neutron capture cross section from $^{236}\mathrm{U}$


Author(s): B. Baramsai, M. Jandel, T. A. Bredeweg, E. M. Bond, A. R. Roman, G. Rusev, C. L. Walker, A. Couture, S. Mosby, J. M. O'Donnell, J. L. Ullmann, and T. Kawano

The $^{236}\mathrm{U}(n,γ)$ reaction cross section has been measured for the incident neutron energy range from 10 eV to 800 keV by using the Detector for Advanced Neutron Capture Experiments (DANCE) $γ$-ray calorimeter at the Los Alamos Neutron Science Center. The cross section was determined with ...

[Phys. Rev. C 96, 024619] Published Thu Aug 24, 2017

Sub-barrier fusion of weakly bound $^{6}\mathrm{Li}$ with $^{58}\mathrm{Ni}$


Author(s): E. F. Aguilera, E. Martinez-Quiroz, P. Amador-Valenzuela, D. Lizcano, A. García-Flores, J. J. Kolata, A. Roberts, G. V. Rogachev, G. F. Peaslee, V. Guimarães, F. D. Becchetti, A. Villano, M. Ojaruega, Y. Chen, H. Jiang, M. Febbraro, P. A. DeYoung, and T. L. Belyaeva

Evaporation-proton yields were measured for the fusion of the weakly bound nucleus $^{6}\mathrm{Li}$ on a $^{58}\mathrm{Ni}$ target at six near- or sub-barrier bombarding energies. Effects of the one-neutron transfer reaction were estimated and corrections made. Total-fusion cross sections were dedu...

[Phys. Rev. C 96, 024616] Published Wed Aug 23, 2017

Modeling near-barrier collisions of heavy ions based on a Langevin-type approach


Author(s): A. V. Karpov and V. V. Saiko

Background: Multinucleon transfer in low-energy nucleus-nucleus collisions is proposed as a method of production of yet-unknown neutron-rich nuclei hardly reachable by other methods.

[Phys. Rev. C 96, 024618] Published Wed Aug 23, 2017

Cross-section measurements for the $^{57}\mathrm{Fe}(n,nγ)^{57}\mathrm{Fe}$ and $^{57}\mathrm{Fe}(n,2nγ)^{56}\mathrm{Fe}$ reactions


Author(s): A. Negret, M. Sin, C. Borcea, R. Capote, Ph. Dessagne, M. Kerveno, N. Nankov, A. Olacel, A. J. M. Plompen, and C. Rouki

A neutron inelastic scattering experiment was performed on an enriched $^{57}\mathrm{Fe}$ sample at the Geel Electron Linear Accelerator neutron source using the Gamma Array for Neutron Inelastic Scattering spectrometer. Several $γ$-production cross sections were determined, but the first transition...

[Phys. Rev. C 96, 024620] Published Wed Aug 23, 2017

Implementation of a finite-amplitude method in a relativistic meson-exchange model


Author(s): Xuwei Sun and Dinghui Lu

The finite-amplitude method is a feasible numerical approach to large scale random phase approximation calculations. It avoids the storage and calculation of residual interaction elements as well as the diagonalization of the RPA matrix, which will be prohibitive when the configuration space is huge...

[Phys. Rev. C 96, 024614] Published Mon Aug 21, 2017

Excited-state one-neutron halo nuclei within a parallel momentum distribution analysis


Author(s): Shubhchintak

Using a fully quantum mechanical post-form finite-range distorted-wave Born approximation theory of Coulomb breakup, I study the parallel momentum distribution of the core in the Coulomb breakup of suggested excited-state one-neutron halo nuclei considered in their different bound excited states. Na...

[Phys. Rev. C 96, 024615] Published Mon Aug 21, 2017



Author(s): M. Febbraro, F. D. Becchetti, R. O. Torres-Isea, J. Riggins, C. C. Lawrence, J. J. Kolata, and A. M. Howard

The $(d,n)$ reaction has been studied with targets of $^{9}\mathrm{Be}, ^{11}\mathrm{B}, ^{13}\mathrm{C}, ^{14,15}\mathrm{N}$, and $^{19}\mathrm{F}$ at ${E}_{d}=16\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}$ using a deuterated liquid-scintillator array. Advanced spectral unfolding techniques with accur...

[Phys. Rev. C 96, 024613] Published Fri Aug 18, 2017

Estimation of $M1$ scissors mode strength for deformed nuclei in the medium- to heavy-mass region by statistical Hauser-Feshbach model calculations


Author(s): M. R. Mumpower, T. Kawano, J. L. Ullmann, M. Krtička, and T. M. Sprouse

Radiative neutron capture is an important nuclear reaction whose accurate description is needed for many applications ranging from nuclear technology to nuclear astrophysics. The description of such a process relies on the Hauser-Feshbach theory which requires the nuclear optical potential, level de...

[Phys. Rev. C 96, 024612] Published Thu Aug 17, 2017

Cluster preformation law for heavy and superheavy nuclei


Author(s): K. Wei (魏康) and H. F. Zhang (张鸿飞)

The concept of cluster radioactivity has been extended to allow emitted particles with ${Z}_{C}>28$ for superheavy nuclei by nuclear theory [Poenaru et al., Phys. Rev. Lett. 107, 062503 (2011)]. The preformation and emission mechanics of heavy-ion particles must be examined again before the fasc...

[Phys. Rev. C 96, 021601(R)] Published Tue Aug 15, 2017

Multinucleon transfer in central collisions of $^{238}\mathrm{U}+^{238}\mathrm{U}$


Author(s): S. Ayik, B. Yilmaz, O. Yilmaz, A. S. Umar, and G. Turan

Quantal diffusion mechanism of nucleon exchange is studied in the central collisions of $^{238}\mathrm{U}+^{238}\mathrm{U}$ in the framework of the stochastic mean-field (SMF) approach. For bombarding energies considered in this work, the dinuclear structure is maintained during the collision. Hence...

[Phys. Rev. C 96, 024611] Published Mon Aug 14, 2017

Probing three-nucleon-force effects via $(p,2p)$ reactions


Author(s): Kosho Minomo, Michio Kohno, Kazuki Yoshida, and Kazuyuki Ogata

We propose to use proton knockout reactions $(p,2p)$ from a deeply bound orbit as a new probe into three-nucleon-force (3NF) effects. The remarkable advantage of using $(p,2p)$ reaction is that we can choose an appropriate kinematical condition to probe the 3NF effects. We analyze $(p,2p)$ reactions...

[Phys. Rev. C 96, 024609] Published Thu Aug 10, 2017

Influence of entrance channel on production cross sections of superheavy nuclei


Author(s): Xiao Jun Bao (包小军), Shu Qing Guo (郭树青), Hong Fei Zhang (张鸿飞), and Jun Qing Li (李君清)

The dependence of the evaporation residue cross section (ERCS) to produce superheavy nuclei (SHN) on the entrance channel of colliding nuclei is analyzed within the dinuclear system concept. The ERCS for the hot fusion reactions are investigated systematically and compared with existing experimental...

[Phys. Rev. C 96, 024610] Published Thu Aug 10, 2017

Existence of inelastic supernumerary nuclear rainbow in $^{16}\mathrm{O}+^{12}\mathrm{C}$ scattering


Author(s): S. Ohkubo, Y. Hirabayashi, and A. A. Ogloblin

The existence of a supernumerary nuclear rainbow in inelastic scattering is reported. This is done by studying inelastic $^{16}\mathrm{O}$ scattering from $^{12}\mathrm{C}$, exciting the ${2}^{+}$ (4.44 MeV) state of $^{12}\mathrm{C}$ and elastic scattering at the incident energies in the range 124–...

[Phys. Rev. C 96, 024607] Published Wed Aug 09, 2017

Measurements of the cross sections of the $^{186}\mathrm{W}(n,γ)^{187}\mathrm{W}, ^{182}\mathrm{W}(n,p)^{182}\mathrm{Ta}, ^{154}\mathrm{Gd}(n,2n)^{153}\mathrm{Gd}$, and $^{160}\mathrm{Gd}(n,2n)^{159}\mathrm{Gd}$ reactions at neutron energies of 5 to 17 MeV


Author(s): Rajnikant Makwana, S. Mukherjee, P. Mishra, H. Naik, N. L. Singh, M. Mehta, K. Katovsky, S. V. Suryanarayana, V. Vansola, Y. Santhi Sheela, M. Karkera, R. Acharya, and S. Khirwadkar

The cross sections of the $^{186}\mathrm{W}(n,γ)^{187}\mathrm{W}, ^{183}\mathrm{W}(n,p)^{183}\mathrm{Ta}$ and $^{154}\mathrm{Gd}(n,2n)^{153}\mathrm{Gd}, ^{160}\mathrm{Gd}(n,2n)^{159}\mathrm{Gd}$ reactions were measured at the neutron energies $5.08±0.165, 8.96±0.77, 12.47±0.825$, and $16.63±0.95\pha...

[Phys. Rev. C 96, 024608] Published Wed Aug 09, 2017

Production of neutron-rich nuclei with $Z=60–73$ in reactions induced by Xe isotopes


Author(s): Long Zhu, Feng-Shou Zhang, Pei-Wei Wen, Jun Su, and Wen-Jie Xie

The multinucleon transfer reactions $^{124,136,144}\mathrm{Xe}\phantom{\rule{0.16em}{0ex}}+\phantom{\rule{0.16em}{0ex}}^{238}\mathrm{U}, ^{136,144}\mathrm{Xe}\phantom{\rule{0.16em}{0ex}}+\phantom{\rule{0.16em}{0ex}}^{160}\mathrm{Gd}, ^{136,144}\mathrm{Xe}\phantom{\rule{0.16em}{0ex}}+\phantom{\rule{0...

[Phys. Rev. C 96, 024606] Published Mon Aug 07, 2017

Calculation of the rate of nuclear excitation by electron transition in an $^{84m}\mathbf{Rb}$ plasma under the hypothesis of local thermodynamic equilibrium using a multiconfiguration Dirac-Fock approach


Author(s): David Denis-Petit, Gilbert Gosselin, Fazia Hannachi, Medhi Tarisien, Thomas Bonnet, Maxime Comet, Franck Gobet, Maud Versteegen, Pascal Morel, Vincent Méot, and Iolanda Matea

One promising candidate for the first detection of nuclear excitation in plasma is the 463-keV, 20.26-min-lifetime isomeric state in $^{84}\mathrm{Rb}$, which can be excited via a 3.5-keV transition to a higher lying state. According to our preliminary calculations, under specific plasma conditions,...

[Phys. Rev. C 96, 024604] Published Wed Aug 02, 2017

Low-lying electric-dipole strengths of Ca, Ni, and Sn isotopes imprinted on total reaction cross sections


Author(s): W. Horiuchi, S. Hatakeyama, S. Ebata, and Y. Suzuki

Low-lying electric-dipole ($E1$) strength of a neutron-rich nucleus contains information on neutron-skin thickness, deformation, and shell evolution. We discuss the possibility of making use of total reaction cross sections on $^{40}\mathrm{Ca}, ^{120}\mathrm{Sn}$, and $^{208}\mathrm{Pb}$ targets to...

[Phys. Rev. C 96, 024605] Published Wed Aug 02, 2017

Effects of symmetry energy and effective $k$-mass splitting on central $^{96}\mathrm{Ru}(^{96}\mathrm{Zr})+^{96}\mathrm{Zr}(^{96}\mathrm{Ru})$ collisions at 50 to 400 MeV/nucleon


Author(s): Jun Su, Long Zhu, Ching-Yuan Huang, Wen-Jie Xie, and Feng-Shou Zhang

The isospin mixing between projectile and target in central $^{96}\mathrm{Ru}(^{96}\mathrm{Zr})+^{96}\mathrm{Zr}(^{96}\mathrm{Ru})$ collisions at 50 to 400 MeV/nucleon is investigated within the isospin-dependent quantum molecular dynamics model in combination with the statistical decay code gemini....

[Phys. Rev. C 96, 024601] Published Tue Aug 01, 2017

Neutron transfer in the $^{13}\mathrm{C}+^{197}\mathrm{Au}$ reaction from gold isotope residuals


Author(s): B. H. Daub, D. L. Bleuel, M. Wiedeking, L. A. Bernstein, N. M. Brickner, J. A. Brown, B. L. Goldblum, K. S. Holliday, J. Lundgren, and K. Moody

Residual gold nuclei were produced via neutron transfer at multiple energies using a 130-MeV $^{13}\mathrm{C}$ beam incident on a stacked-foil target consisting of alternating layers of $^{197}\mathrm{Au}$ and $^{27}\mathrm{Al}$. Production cross sections, over an energy range of 56 to 129 MeV, for ...

[Phys. Rev. C 96, 024602] Published Tue Aug 01, 2017

Projectile-breakup-induced fission-fragment angular distributions in the $^{6}\mathrm{Li}+^{232}\mathrm{Th}$ reaction


Author(s): A. Pal, S. Santra, D. Chattopadhyay, A. Kundu, K. Ramachandran, R. Tripathi, B. J. Roy, T. N. Nag, Y. Sawant, D. Sarkar, B. K. Nayak, A. Saxena, and S. Kailas

Background: Experimental anisotropy in fission-fragment (FF) angular distribution in reactions involving weakly bound stable projectiles with actinide targets are enhanced compared to statistical saddle-point model (SSPM) predictions. Contributions from breakup- or transfer-induced fission to total ...

[Phys. Rev. C 96, 024603] Published Tue Aug 01, 2017

Neutron inelastic scattering measurements on the stable isotopes of titanium


Author(s): A. Olacel, F. Belloni, C. Borcea, M. Boromiza, P. Dessagne, G. Henning, M. Kerveno, A. Negret, M. Nyman, E. Pirovano, and A. J. M. Plompen

The results of a neutron inelastic scattering experiment performed at the Geel Electron Linear Accelerator pulsed white neutron source of the European Commission Joint Research Centre are reported. The neutrons with energies up to 18 MeV interacted with a $^{\mathrm{nat}}\mathrm{Ti}$ sample and the ...

[Phys. Rev. C 96, 014621] Published Mon Jul 31, 2017

Effective two-body model for spectra of clusters of $^{2}\mathrm{H},^{3}\mathrm{H},^{3}\mathrm{He}$, and $^{4}\mathrm{He}$ with $^{4}\mathrm{He}$, and $^{2}\mathrm{H}\text{−}^{4}\mathrm{He}$ scattering


Author(s): P. R. Fraser, K. Massen-Hane, A. S. Kadyrov, K. Amos, I. Bray, and L. Canton

Four light-mass nuclei are considered by an effective two-body clusterization method: $^{7}\mathrm{Li}$ as $^{3}\mathrm{H}+^{4}\mathrm{He},^{7}\mathrm{Be}$ as $^{3}\mathrm{He}+^{4}\mathrm{He},^{8}\mathrm{Be}$ as $^{4}\mathrm{He}+^{4}\mathrm{He}$, and $^{6}\mathrm{Li}$ as $^{2}\mathrm{H}+^{4}\mathrm{...

[Phys. Rev. C 96, 014619] Published Fri Jul 28, 2017

Fission-like events in the $^{12}\mathrm{C}+^{169}\mathrm{Tm}$ system at low excitation energies


Author(s): Arshiya Sood, Pushpendra P. Singh, Rudra N. Sahoo, Pawan Kumar, Abhishek Yadav, Vijay R. Sharma, Mohd. Shuaib, Manoj K. Sharma, Devendra P. Singh, Unnati Gupta, R. Kumar, S. Aydin, B. P. Singh, H. J. Wollersheim, and R. Prasad

Background: Fission has been found to be a dominating mode of deexcitation in heavy-ion induced reactions at high excitation energies. The phenomenon of heavy-ion induced fission has been extensively investigated with highly fissile actinide nuclei, yet there is a dearth of comprehensive understandi...

[Phys. Rev. C 96, 014620] Published Fri Jul 28, 2017

Effect of collective enhancement in level density in the fission of pre-actinides


Author(s): Tathagata Banerjee, S. Nath, A. Jhingan, N. Saneesh, Mohit Kumar, Abhishek Yadav, Gurpreet Kaur, R. Dubey, M. Shareef, P. V. Laveen, A. Shamlath, Md. Moin Shaikh, S. Biswas, J. Gehlot, K. S. Golda, P. Sugathan, and Santanu Pal

Fission fragment angular distributions for three reactions, $^{19}\mathrm{F}+^{182}\mathrm{W},^{19}\mathrm{F}+^{187}\mathrm{Re}$, and $^{19}\mathrm{F}+^{193}\mathrm{Ir}$, are measured in the laboratory energy range of 82–120 MeV. Extracted fission cross sections of the present systems as well as tho...

[Phys. Rev. C 96, 014618] Published Thu Jul 27, 2017

$^{7}\mathrm{Li}$-induced reaction on $^{\mathrm{nat}}\mathrm{Mo}$: A study of complete versus incomplete fusion


Author(s): Deepak Kumar, Moumita Maiti, and Susanta Lahiri

Background: Several investigations on the complete-incomplete fusion (CF-ICF) dynamics of $α$-cluster well-bound nuclei have been contemplated above the Coulomb barrier $(∼4$–7 MeV/nucleon) in recent years. It is therefore expected to observe significant ICF over CF in the reactions induced by a wea...

[Phys. Rev. C 96, 014617] Published Wed Jul 26, 2017

Microscopic description of production cross sections including deexcitation effects


Author(s): Kazuyuki Sekizawa

Background: At the forefront of the nuclear science, production of new neutron-rich isotopes is continuously pursued at accelerator laboratories all over the world. To explore the currently unknown territories in the nuclear chart far away from the stability, reliable theoretical predictions are ine...

[Phys. Rev. C 96, 014615] Published Mon Jul 24, 2017

Many-particle correlations and Coulomb effects on temperatures from fragment momentum fluctuations


Author(s): S. R. Souza, M. B. Tsang, and R. Donangelo

We investigate correlations in the fragment momentum distribution owing to the propagation of fragments under the influence of their mutual Coulomb field after the breakup of an excited nuclear source. The magnitude of the effects on the nuclear temperatures obtained from such distributions is estim...

[Phys. Rev. C 96, 014616] Published Mon Jul 24, 2017

Relationship between and effect of inelastic excitations and transfer channels on sub-barrier fusion enhancement


Author(s): Khushboo, S. Mandal, S. Nath, N. Madhavan, J. Gehlot, A. Jhingan, Neeraj Kumar, Tathagata Banerjee, Gurpreet Kaur, K. Rojeeta Devi, A. Banerjee, Neelam, T. Varughese, Davinder Siwal, R. Garg, Ish Mukul, M. Saxena, S. Verma, S. Kumar, B. R. Behera, and P. Verma

Background: It is a well established fact that nuclear deformation and vibration influence fusion dynamics around the Coulomb barrier. This effect was observed for several systems with the inclusion of inelastic excitations in coupled-channels calculations. Sub-barrier fusion cross sections were als...

[Phys. Rev. C 96, 014614] Published Fri Jul 21, 2017

Half-life of $^{51}\mathrm{Mn}$


Author(s): Stephen A. Graves, Paul A. Ellison, Hector F. Valdovinos, Todd E. Barnhart, Robert J. Nickles, and Jonathan W. Engle

The half-life of $^{51}\mathrm{Mn}$ was measured by serial gamma spectrometry of the 511-keV annihilation photon following decay by ${β}^{+}$ emission. Data were collected every 100 seconds for 100,000–230,000 seconds within each measurement ($n=4$). The 511-keV incidence rate was calculated from th...

[Phys. Rev. C 96, 014613] Published Tue Jul 18, 2017

Adiabatic self-consistent collective path in nuclear fusion reactions


Author(s): Kai Wen and Takashi Nakatsukasa

Collective reaction paths for fusion reactions $^{16}\mathrm{O}+α→^{20}\mathrm{Ne}$ and $^{16}\mathrm{O}+^{16}\mathrm{O}→^{32}\mathrm{S}$ are microscopically determined on the basis of the adiabatic self-consistent collective coordinate (ASCC) method. The collective path is maximally decoupled from ...

[Phys. Rev. C 96, 014610] Published Mon Jul 17, 2017

Operator form of the three-nucleon scattering amplitude


Author(s): Kacper Topolnicki, Jacek Golak, Roman Skibiński, and Henryk Witała

To extend the applications of the so-called “three-dimensional” formalism to the description of three-nucleon scattering within the Faddeev formalism, we develop a general form of the three-nucleon scattering amplitude. This form significantly decreases the numerical complexity of the “three-dimensi...

[Phys. Rev. C 96, 014611] Published Mon Jul 17, 2017

Proton and neutron density distributions at supranormal density in low- and medium-energy heavy-ion collisions


Author(s): J. R. Stone, P. Danielewicz, and Y. Iwata

Background: The distribution of protons and neutrons in the matter created in heavy-ion collisions is one of the main points of interest for the collision physics, especially at supranormal densities. These distributions are the basis for predictions of the density dependence of the symmetry energy ...

[Phys. Rev. C 96, 014612] Published Mon Jul 17, 2017

$^{181}\mathrm{Ta}$($n,γ$) cross section and average resonance parameter measurements in the unresolved resonance region from 24 to 1180 keV using a filtered-beam technique


Author(s): B. J. McDermott, E. Blain, A. Daskalakis, N. Thompson, A. Youmans, H. J. Choun, W. Steinberger, Y. Danon, D. P. Barry, R. C. Block, B. E. Epping, G. Leinweber, and M. R. Rapp

A new array of four Deuterated Benzene (${\mathrm{C}}_{6}{\mathrm{D}}_{6}$) detectors has been installed at the Gaerttner Linear Accelerator Center at Rensselaer Polytechnic Institute for the purpose of measuring neutron capture cross sections in the keV region. Measurements were performed on sample...

[Phys. Rev. C 96, 014607] Published Thu Jul 13, 2017

Fission fragment yield distribution in the heavy-mass region from the $^{239}\mathrm{Pu}$ (${n}_{\mathrm{th}},f$) reaction


Author(s): Y. K. Gupta, D. C. Biswas, O. Serot, D. Bernard, O. Litaize, S. Julien-Laferrière, A. Chebboubi, G. Kessedjian, C. Sage, A. Blanc, H. Faust, U. Köster, A. Ebran, L. Mathieu, A. Letourneau, T. Materna, and S. Panebianco

The fission fragment yield distribution has been measured in the $^{239}\mathrm{Pu}\left({n}_{\mathrm{th}},f\right)$ reaction in the mass region of $A=126$ to 150 using the Lohengrin recoil-mass spectrometer. Three independent experimental campaigns were performed, allowing a significant reduction o...

[Phys. Rev. C 96, 014608] Published Thu Jul 13, 2017

Possibilities of production of transfermium nuclei in complete fusion reactions with radioactive beams


Author(s): Juhee Hong, G. G. Adamian, and N. V. Antonenko

The possibilities of direct production of new isotopes of transfermium nuclei $^{261,263,264}\mathrm{No}$, $^{263,264}\mathrm{Lr}$, $^{263,264,266,268}\mathrm{Rf}$, $^{264,265}\mathrm{Db}$, and $^{267,268,270,272}\mathrm{Sg}$ are studied in various asymmetric hot fusion-evaporation reactions with ra...

[Phys. Rev. C 96, 014609] Published Thu Jul 13, 2017

Phenomenology of muon-induced neutron yield


Author(s): A. S. Malgin

The cosmogenic neutron yield ${Y}_{n}$ characterizes the ability of matter to produce neutrons under the effect of cosmic ray muons with spectrum and average energy corresponding to an observation depth. The yield is the basic characteristic of cosmogenic neutrons. The neutron production rate and ne...

[Phys. Rev. C 96, 014605] Published Tue Jul 11, 2017

Neutron-induced fission of even- and odd-mass plutonium isotopes within a four-dimensional Langevin framework


Author(s): M. R. Pahlavani and S. M. Mirfathi

Neutron multiplicity prior to scission and evaluation of mass distribution of fission fragments with the fission time scale for neutron induced fission of plutonium isotopes are investigated using a dynamical Langevin approach. Also, mass yield of fragments and prompt neutron multiplicity in differe...

[Phys. Rev. C 96, 014606] Published Tue Jul 11, 2017

Cross sections and analyzing powers for ($\stackrel{⃗}{p},np$) reactions of $^{2}\mathrm{H}, ^{6}\mathrm{Li}$, and $^{12}\mathrm{C}$ at 296 MeV


Author(s): T. Wakasa, J. Yasuda, M. Dozono, T. Fukunaga, S. Gotanda, K. Hatanaka, K. Ishibashi, Y. Kanaya, S. Kimura, Y. Maeda, Y. Maeda, Y. Nishio, T. Noro, T. Nozoe, K. Ohnaka, S. Sakaguchi, Y. Sakemi, K. Sekiguchi, T. Taguchi, and Y. Wada

We report measurements of cross sections and analyzing powers for nucleon-knockout $(\stackrel{⃗}{p},np)$ reactions of $^{2}\mathrm{H}, ^{6}\mathrm{Li}$, and $^{12}\mathrm{C}$ at 296 MeV using the RCNP NPOL3 neutron detector and large acceptance spectrometer. The $1s$ and $1p$ knockout reactions wer...

[Phys. Rev. C 96, 014604] Published Mon Jul 10, 2017

New results in low-energy fusion of $^{40}\mathbf{Ca}+^{90,92}\mathbf{Zr}$


Author(s): A. M. Stefanini, G. Montagnoli, H. Esbensen, P. Čolović, L. Corradi, E. Fioretto, F. Galtarossa, A. Goasduff, J. Grebosz, F. Haas, M. Mazzocco, N. Soić, E. Strano, and S. Szilner

Background: Near- and sub-barrier fusion of various Ca + Zr isotopic combinations have been widely investigated. A recent analysis of $^{40}\mathrm{Ca}+^{96}\mathrm{Zr}$ data has highlighted the importance of couplings to multiphonon excitations and to both neutron and proton transfer channels. Anal...

[Phys. Rev. C 96, 014603] Published Fri Jul 07, 2017

New quasibound states of the compound nucleus in $α$-particle capture by the nucleus


Author(s): Sergei P. Maydanyuk, Peng-Ming Zhang, and Li-Ping Zou

We generalize the theory of nuclear decay and capture of Gamow that is based on tunneling through the barrier and internal oscillations inside the nucleus. In our formalism an additional factor is obtained, which describes distribution of the wave function of the the $α$ particle inside the nuclear ...

[Phys. Rev. C 96, 014602] Published Thu Jul 06, 2017

Energy dependence of the prompt $γ$-ray emission from the $(d,p)$-induced fission of $^{234}\mathrm{U}^{*}$ and $^{240}\mathrm{Pu}^{*}$


Author(s): S. J. Rose, F. Zeiser, J. N. Wilson, A. Oberstedt, S. Oberstedt, S. Siem, G. M. Tveten, L. A. Bernstein, D. L. Bleuel, J. A. Brown, L. Crespo Campo, F. Giacoppo, A. Görgen, M. Guttormsen, K. Hadyńska, A. Hafreager, T. W. Hagen, M. Klintefjord, T. A. Laplace, A. C. Larsen, T. Renstrøm, E. Sahin, C. Schmitt, T. G. Tornyi, and M. Wiedeking

Prompt-fission $γ$ rays are responsible for approximately 5% of the total energy released in fission, and therefore important to understand when modeling nuclear reactors. In this work we present prompt $γ$-ray emission characteristics in fission as a function of the nuclear excitation energy of the...

[Phys. Rev. C 96, 014601] Published Wed Jul 05, 2017

Comprehensive $^{242\mathrm{m}}\mathrm{Am}$ neutron-induced reaction cross sections and resonance parameters


Author(s): M. Q. Buckner, C. Y. Wu, R. A. Henderson, B. Bucher, N. Wimer, A. Chyzh, T. A. Bredeweg, B. Baramsai, A. Couture, M. Jandel, S. Mosby, and J. L. Ullmann

The $^{242}\mathrm{Am}$ metastable isomer's neutron-induced destruction mechanisms were studied at the Los Alamos Neutron Science Center using the Detector for Advanced Neutron-Capture Experiments array with a compact parallel-plate avalanche counter. New $^{242\mathrm{m}}\mathrm{Am}$ neutron-captur...

[Phys. Rev. C 95, 061602(R)] Published Fri Jun 30, 2017