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Preview: Recent Articles in Phys. Rev. C

Recent Articles in Phys. Rev. C

Recent articles in Physical Review C

Published: 2017-10-18T15:02:49+00:00


Evidence for $^{15}\mathrm{O}+α$ resonance structures in $^{19}\mathrm{Ne}$ via direct measurement


Author(s): D. Torresi et al.

States in the astrophysically important $^{19}\mathrm{Ne}$ nucleus have been populated directly using the $^{15}\mathrm{O}(α,\phantom{\rule{0.16em}{0ex}}α)^{15}\mathrm{O}$ reaction with a radioactive $^{15}\mathrm{O}$ beam. Due to the challenges involved, this represents the first such $^{15}\mathrm...

[Phys. Rev. C 96, 044317] Published Wed Oct 18, 2017

Gamow-Teller transitions and proton-neutron pair correlation in $N=Z$ odd-odd $p$-shell nuclei


Author(s): Hiroyuki Morita and Yoshiko Kanada-En'yo

We have studied the Gamow-Teller (GT) transitions from $N=Z+2$ neighbors to $N=Z$ odd-odd nuclei in the $p$-shell region by using isospin-projected and $βγ$-constraint antisymmetrized molecular dynamics combined with the generator coordinate method. The calculated GT transition strengths from ${0}^{...

[Phys. Rev. C 96, 044318] 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

Effects of hadronic mean-field potentials on Hanbury-Brown–Twiss correlations in relativistic heavy-ion collisions


Author(s): Chun-Jian Zhang and Jun Xu

With the parameters fitted by the particle multiplicity, the energy density at chemical freeze-out, and the charged particle elliptic flow, we have studied the effects of the hadronic mean-field potentials on the Hanbury-Brown and Twiss (HBT) correlation in relativistic heavy-ion collisions based on...

[Phys. Rev. C 96, 044907] Published Wed Oct 18, 2017

High-mass twin stars with a multipolytrope equation of state


Author(s): D. E. Alvarez-Castillo and D. B. Blaschke

We show that in the three-polytrope model of Hebeler et al. [Astrophys. J. 773, 11 (2013)] for the neutron star equation of state (EoS) at supersaturation densities a third family of compact stars can be obtained which confirms the possibility of high-mass twin stars that have coincident masses ${M}...

[Phys. Rev. C 96, 045809] Published Wed Oct 18, 2017

Estimating the charm quark diffusion coefficient and thermalization time from $D$ meson spectra at energies available at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider


Author(s): Francesco Scardina, Santosh K. Das, Vincenzo Minissale, Salvatore Plumari, and Vincenzo Greco

We describe the propagation of charm quarks in the quark-gluon plasma (QGP) by means of a Boltzmann transport approach. Nonperturbative interaction between heavy quarks and light quarks have been taken into account through a quasiparticle approach in which light partons are dressed with thermal mass...

[Phys. Rev. C 96, 044905] Published Tue Oct 17, 2017

Correlation functions of net-proton multiplicity distributions in Au + Au collisions at energies available at the BNL Relativistic Heavy Ion Collider from a multiphase transport model


Author(s): Yufu Lin, Lizhu Chen, and Zhiming Li

Fluctuations of conserved quantities are believed to be sensitive observables to probe the signature of the QCD phase transition and critical point. It was argued recently that measuring the genuine correlation functions (CFs) could provide cleaner information on possible nontrivial dynamics in heav...

[Phys. Rev. C 96, 044906] Published Tue Oct 17, 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

Constraining the $\overline{K}N$ interaction from the $1S$ level shift of kaonic deuterium


Author(s): Tsubasa Hoshino, Shota Ohnishi, Wataru Horiuchi, Tetsuo Hyodo, and Wolfram Weise

Motivated by the precise measurement of the $1S$ level shift of kaonic hydrogen, we perform accurate three-body calculations for the spectrum of kaonic deuterium using a realistic antikaon-nucleon $(\overline{K}N)$ interaction. In order to describe both short- and long-range behaviors of the kaonic ...

[Phys. Rev. C 96, 045204] Published Mon Oct 16, 2017



Author(s): G. L. Wilson, M. Takeyama, A. N. Andreyev, B. Andel, S. Antalic, W. N. Catford, L. Ghys, H. Haba, F. P. Heßberger, M. Huang, D. Kaji, Z. Kalaninova, K. Morimoto, K. Morita, M. Murakami, K. Nishio, R. Orlandi, A. G. Smith, K. Tanaka, Y. Wakabayashi, and S. Yamaki

The exotic decay process of $β$-delayed fission ($β\mathrm{DF}$) has been studied in the neutron-deficient isotope $^{230}\mathrm{Am}$. The $^{230}\mathrm{Am}$ nuclei were produced in the complete fusion reaction $^{207}\mathrm{Pb}(^{27}\mathrm{Al},4n)^{230}\mathrm{Am}$ and separated by using the GA...

[Phys. Rev. C 96, 044315] Published Fri Oct 13, 2017

Low-lying dipole strength in $^{52}\mathrm{Cr}$


Author(s): T. Shizuma, T. Hayakawa, I. Daito, H. Ohgaki, S. Miyamoto, and F. Minato

The low-lying dipole strength in $^{52}\mathrm{Cr}$ was measured in nuclear resonance fluorescence experiments using a quasimonochromatic, linearly polarized photon beam. The parities of the excited dipole states were determined by the intensity asymmetry of resonantly scattered $γ$ rays with respec...

[Phys. Rev. C 96, 044316] Published Fri Oct 13, 2017

Bulk properties of the medium produced in relativistic heavy-ion collisions from the beam energy scan program


Author(s): L. Adamczyk et al. (STAR Collaboration)

The beam-energy scan at RHIC aims to discover whether a critical point exists in the phase diagram of QCD. This paper reports on the most comprehensive measurement of single-particle spectra for a multitude of hadrons from the first run, taken with the STAR experiment. From these the authors infer the kinetic and chemical freeze-out temperatures and the baryon chemical potential as functions of beam energy and centrality. The results provide an opportunity for the beam-energy scan program at RHIC to enlarge the (T,μB) region of the phase diagram to search for the QCD critical point.

[Phys. Rev. C 96, 044904] Published Fri Oct 13, 2017

Uncertainty of the astrophysical $^{17,18}\mathrm{O}(α,n)^{20,21}\mathrm{Ne}$ reaction rates and the applicability of the statistical model for nuclei with $A≲20$


Author(s): Peter Mohr

Background: The $(α,n)$, and $(α,γ)$ reactions on $^{17,18}\mathrm{O}$ have significant impact on the neutron balance in the astrophysical $s$ process. In this scenario stellar reaction rates are required for relatively low temperatures below ${T}_{9}≲1$.

[Phys. Rev. C 96, 045808] Published Fri Oct 13, 2017

Emergence of low-energy monopole strength in the neutron-rich calcium isotopes


Author(s): J. Piekarewicz

Background: The isoscalar monopole response of neutron-rich nuclei is sensitive to both the incompressibility coefficient of symmetric nuclear matter and the density dependence of the symmetry energy. For exotic nuclei with a large neutron excess, a low-energy component emerges that is driven by tra...

[Phys. Rev. C 96, 044314] Published Thu Oct 12, 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

Consistent implementation of non-zero-range terms into hydrodynamics


Author(s): Scott Pratt

As the hot and dense matter created in relativistic heavy-ion collisions expands and cools, theory must accurately treat its thermodynamic properties as well as its transport behavior. Because gradient terms probe the local environment within the evolving system, they are important in modeling the growth of thermal fluctuations, especially near a critical point, where knowledge of the size and spread of correlations is crucial. This paper demonstrates how gradient terms can be incorporated into the hydrodynamic equations of motion and how those modifications can be consistently applied to all thermodynamic quantities.

[Phys. Rev. C 96, 044903] Published Thu Oct 12, 2017

Constraining the transport coefficient in cold nuclear matter with the Drell-Yan process


Author(s): Li-Hua Song and Lin-Wan Yan

By means of the Salgado-Wiedemann (SW) quenching weights and the analytic parametrizations of quenching weights based on the Baier-Dokshitzer-Mueller-Peigné-Schiff (BDMPS) formalism, the leading-order computations for nuclear Drell-Yan differential cross section ratios as a function of the quark mom...

[Phys. Rev. C 96, 045203] Published Thu Oct 12, 2017

$α+d→^{6}\mathrm{Li}+γ$ astrophysical $S$ factor and its implications for Big Bang nucleosynthesis


Author(s): A. Grassi, G. Mangano, L. E. Marcucci, and O. Pisanti

The $α+d→{\phantom{\rule{0.16em}{0ex}}}^{6}\mathrm{Li}+γ$ radiative capture is studied in order to predict the $^{6}\mathrm{Li}$ primordial abundance. Within a two-body framework, the $α$ particle and the deuteron are considered the structureless constituents of $^{6}\mathrm{Li}$. Five $α+d$ potenti...

[Phys. Rev. C 96, 045807] 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

Constraining the equation of state with identified particle spectra


Author(s): Akihiko Monnai and Jean-Yves Ollitrault

We show that in a central nucleus-nucleus collision, the variation of the mean transverse mass with the multiplicity is determined, up to a rescaling, by the variation of the energy over entropy ratio as a function of the entropy density, thus providing a direct link between experimental data and th...

[Phys. Rev. C 96, 044902] Published Wed Oct 11, 2017

Cross-shell excitations from the $fp$ shell: Lifetime measurements in $^{61}\mathrm{Zn}$


Author(s): M. Queiser et al.

Lifetimes of excited states in the neutron-deficient nucleus $^{61}\mathrm{Zn}$ were measured employing the recoil-distance Doppler-shift (RDDS) and the electronic fast-timing methods at the University of Cologne. The nucleus of interest was populated as an evaporation residue in $^{40}\mathrm{Ca}(^...

[Phys. Rev. C 96, 044313] Published Tue Oct 10, 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

Properties of open and hidden charm mesons in light quark matter


Author(s): Martin Cleven, Volodymyr K. Magas, and Angels Ramos

In this work we study the implications of light quark pionic matter at finite temperatures on the properties of open and hidden charm mesons. Meson-meson interactions are described by means of a chiral unitary approach accounting for coupled-channel effects. The in-medium Lippmann-Schwinger equation...

[Phys. Rev. C 96, 045201] Published Tue Oct 10, 2017

Multicomponent van der Waals equation of state: Applications in nuclear and hadronic physics


Author(s): Volodymyr Vovchenko, Anton Motornenko, Paolo Alba, Mark I. Gorenstein, Leonid M. Satarov, and Horst Stoecker

A generalization of the quantum van der Waals equation of state for a multicomponent system in the grand-canonical ensemble is proposed. The model includes quantum statistical effects and allows us to specify the parameters characterizing repulsive and attractive forces for each pair of particle spe...

[Phys. Rev. C 96, 045202] Published Tue Oct 10, 2017

Proton capture reaction cross section measurements on $^{162}\mathrm{Er}$ as a probe of statistical model calculations


Author(s): N. Özkan, R. T. Güray, C. Yalçın, W. P. Tan, A. Aprahamian, M. Beard, R. J. deBoer, S. Almaraz-Calderon, S. Falahat, J. Görres, Q. Li, A. Sauerwein, K. Sonnabend, M. Wiescher, Zs. Fülöp, Gy. Gyürky, E. Somorjai, and J. Greene

It is crucial to measure reaction cross sections relevant to the astrophysical $γ$ process so that theoretical reaction rates can be tested and validated with experimental data. The total cross sections for the $^{162}\mathrm{Er}(p,γ)^{163}\mathrm{Tm}$ and the $^{162}\mathrm{Er}(p,n)^{162}\mathrm{Tm...

[Phys. Rev. C 96, 045805] Published Tue Oct 10, 2017

New temperature dependent hyperonic equation of state: Application to rotating neutron star models and $I\text{−}Q$ relations


Author(s): Miguel Marques, Micaela Oertel, Matthias Hempel, and Jérôme Novak

In this work we present a newly constructed equation of state (EoS), applicable to stellar core collapse and neutron star mergers including the entire baryon octet. Our EoS is compatible with the main constraints from nuclear physics and, in particular, with a maximum mass for cold $β$-equilibrated ...

[Phys. Rev. C 96, 045806] Published Tue Oct 10, 2017

Examination of production and properties of $^{268–271}\mathrm{Hs}$


Author(s): G. G. Adamian, N. V. Antonenko, L. A. Malov, and H. Lenske

The production cross sections of several isotopes of Hs and their properties are considered. The optimal reactions are predicted for producing $^{268–271}\mathrm{Hs}$. The possible $α$-decay chains including these isotopes are analyzed and compared with the available experimental data. The number of...

[Phys. Rev. C 96, 044310] Published Mon Oct 09, 2017

Properties of $γ$-decaying isomers and isomeric ratios in the $^{100}\mathrm{Sn}$ region


Author(s): J. Park et al.

Half-lives and energies of $γ$ rays emitted in the decay of isomeric states of nuclei in the vicinity of the doubly magic $^{100}\mathrm{Sn}$ were measured in a decay spectroscopy experiment at Rikagaku Kenkyusho (The Institute of Physical and Chemical Research) of Japan Nishina Center. The measured...

[Phys. Rev. C 96, 044311] Published Mon Oct 09, 2017

Spin and pseudospin symmetries in the single-$\mathrm{Λ}$ spectrum


Author(s): Ting-Ting Sun (孙亭亭), Wan-Li Lu (吕万里), and Shi-Sheng Zhang (张时声)

We explore spin and pseudospin symmetries in the single-$\mathrm{Λ}$ spectrum within the framework of relativistic mean-field theory. We find that the spin symmetry of the single-$\mathrm{Λ}$ spectrum maintains, which is consistent with experimental results of small spin-orbit splitting, whereas the...

[Phys. Rev. C 96, 044312] Published Mon Oct 09, 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

Hyperons in the nuclear pasta phase


Author(s): Débora P. Menezes and Constança Providência

We have investigated under which conditions hyperons (particularly $\mathrm{Λ}\mathrm{s}$ and ${\mathrm{Σ}}^{−}\mathrm{s}$) can be found in the nuclear pasta phase. As the density and temperature are larger and the electron fraction is smaller, the probability is greater that these particles appear,...

[Phys. Rev. C 96, 045803] Published Mon Oct 09, 2017

Experimental measurement of $^{12}\mathrm{C}+^{16}\mathrm{O}$ fusion at stellar energies


Author(s): X. Fang, W. P. Tan, M. Beard, R. J. deBoer, G. Gilardy, H. Jung, Q. Liu, S. Lyons, D. Robertson, K. Setoodehnia, C. Seymour, E. Stech, B. Vande Kolk, M. Wiescher, R. T. deSouza, S. Hudan, V. Singh, X. D. Tang, and E. Uberseder

The total cross section of the $^{12}\mathrm{C}+^{16}\mathrm{O}$ fusion reaction has been measured at low energies to investigate the role of this reaction during late stellar evolution burning phases. A high-intensity oxygen beam, produced by the 5 MV pelletron accelerator at the University of Notr...

[Phys. Rev. C 96, 045804] Published Mon Oct 09, 2017

Refining mass formulas for astrophysical applications: A Bayesian neural network approach


Author(s): R. Utama and J. Piekarewicz

The masses of nuclei between the experimentally known region and the neutron drip line are key inputs for a variety of astrophysical applications. Particularly near the drip lines, unstable nuclei are also at the core of fundamental questions about the limits of nuclear binding. The authors use two existing mass models that capture the essential underlying physics and then refine their predictions by training an artificial neural network. The results significantly reduce the root-mean-square deviation relative to experiment. These newly refined mass tables are used to map the neutron drip lines and to study a few critical r-process nuclei.

[Phys. Rev. C 96, 044308] Published Fri Oct 06, 2017

Convergence of the hole-line expansion with modern nucleon-nucleon potentials


Author(s): Jia-Jing Lu (陆家靖), Zeng-Hua Li (李增花), Chong-Yang Chen (陈重阳), M. Baldo, and H.-J. Schulze

The accurate computation of nuclear matter properties, such as its binding energy, is still a challenge to nuclear theory, largely because the quark substructure of nucleons creates a strong repulsion at short distances that renders a straightforward perturbative calculation impossible. In this work, the authors study the Brueckner-Bethe-Goldstone expansion of dense Fermi systems in terms of hole-line contributions, of the associated Goldstone diagrams, to the binding energy of nuclear matter. They use various modern nucleon-nucleon potentials of high precision. In all cases the three-hole-line contributions are sufficiently small suggesting that the expansion converges. Yet, the empirical saturation properties of nuclear matter are not reproduced for any potential. This means that very strong nuclear three-body forces are required in order to achieve satisfactory saturation properties of nuclear matter, and that such forces are essential for all considered potentials.

[Phys. Rev. C 96, 044309] Published Fri Oct 06, 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

Thermalization in a small hadron gas system and high-multiplicity $pp$ events


Author(s): Nachiketa Sarkar and Premomoy Ghosh

We study the system-size dependence of Knudsen number, a measure of degree of thermalization, for hadron resonance gas that follows the lattice quantum chromodynamics equation of state at zero chemical potential. A comparison between Knudsen numbers for the $\mathrm{AuAu}$ collisions at RHIC and the...

[Phys. Rev. C 96, 044901] Published Fri Oct 06, 2017

Time variation of fundamental constants in nonstandard cosmological models


Author(s): M. E. Mosquera and O. Civitarese

In this work we have studied the lithium problem in nonstandard cosmological models. In particular, by using the public code alterbbn, we have included in the computation of the primordial light nuclei abundances, the effects of the inclusion of dark energy and dark entropy, along with the variation...

[Phys. Rev. C 96, 045802] Published Fri Oct 06, 2017

Nonmesonic weak decay of $\mathrm{Λ}$ hypernuclei: The $\mathrm{Λ}N−\mathrm{Σ}N$ coupling


Author(s): E. Bauer, G. Garbarino, and C. A. Rodríguez Peña

The nonmesonic weak decay of $\mathrm{Λ}$ hypernuclei is studied within a microscopic diagrammatic approach which is extended to include the $\mathrm{Λ}N−\mathrm{Σ}N$ strong interaction coupling. We adopt a nuclear matter formalism which, through the local density approximation, allows us to model f...

[Phys. Rev. C 96, 044303] Published Thu Oct 05, 2017

Shell model description of $E3$ transition strengths from the first ${3}^{−}$ states in $sd$-shell even-even nuclei


Author(s): M. Bouhelal, M. Labidi, F. Haas, and E. Caurier

The electric-octupole $E3$ transition strengths from the first ${3}^{−}$ state to the ground-state transition in $sd$ shell even-even nuclei with $A=16$ to 40 are investigated within the shell model framework using the effective (0+1)$ℏω$ PSDPF interaction. For this type of transition, new effective...

[Phys. Rev. C 96, 044304] Published Thu Oct 05, 2017

Low collectivity of the ${2}_{1}^{+}$ state of $^{212}\mathrm{Po}$


Author(s): D. Kocheva et al.

The lifetime of the ${2}_{1}^{+}$ state of $^{212}\mathrm{Po}$ was measured in the $^{208}\mathrm{Pb}$($^{12}\mathrm{C},^{8}\mathrm{Be}$)$^{212}\mathrm{Po}$ transfer reaction by $γ$-ray spectroscopy employing the recoil distance Doppler shift (RDDS) method. The derived absolute $B(E2)$ value of 2.6(...

[Phys. Rev. C 96, 044305] Published Thu Oct 05, 2017

Monopole pairing correlations with random interactions


Author(s): G. J. Fu, L. Y. Jia, Y. M. Zhao, and A. Arima

In this paper we study the monopole pairing correlation in ${0}^{+}$ states of semimagic nuclei under random interactions. We calculate overlaps between $S$-pair wave functions and exact shell-model wave functions. No dominance of the $S$-pair components is shown: In a single-$j$ shell ${0}^{+}$ sta...

[Phys. Rev. C 96, 044306] Published Thu Oct 05, 2017

Structure and decays of nuclear three-body systems: The Gamow coupled-channel method in Jacobi coordinates


Author(s): S. M. Wang (王思敏), N. Michel, W. Nazarewicz, and F. R. Xu (许甫荣)

Background: Weakly bound and unbound nuclear states appearing around particle thresholds are prototypical open quantum systems. Theories of such states must take into account configuration mixing effects in the presence of strong coupling to the particle continuum space.

[Phys. Rev. C 96, 044307] Published Thu Oct 05, 2017

Dipole and quadrupole moments of $^{73\text{–}78}\mathrm{Cu}$ as a test of the robustness of the $Z=28$ shell closure near $^{78}\mathrm{Ni}$


Author(s): R. P. de Groote, J. Billowes, C. L. Binnersley, M. L. Bissell, T. E. Cocolios, T. Day Goodacre, G. J. Farooq-Smith, D. V. Fedorov, K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz, Á. Koszorús, K. M. Lynch, G. Neyens, F. Nowacki, T. Otsuka, S. Rothe, H. H. Stroke, Y. Tsunoda, A. R. Vernon, K. D. A. Wendt, S. G. Wilkins, Z. Y. Xu, and X. F. Yang

Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground states of neutron-rich $^{73\text{–}78}\mathrm{Cu}$ isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the CERN On-Line Isotope Mass Separator (ISOLDE)...

[Phys. Rev. C 96, 041302(R)] Published Wed Oct 04, 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

$α$ decay of the $T=1, {2}^{+}$ state in $^{10}\mathrm{B}$ and isospin symmetry breaking in the $A=10$ triplet


Author(s): S. A. Kuvin, A. H. Wuosmaa, C. J. Lister, M. L. Avila, C. R. Hoffman, B. P. Kay, D. G. McNeel, C. Morse, E. A. McCutchan, D. Santiago-Gonzalez, and J. R. Winkelbauer

The rate of the $T=1, {2}^{+}$ to $T=1, {0}^{+}$ transition in $^{10}\mathrm{B}$ ($T=1, {T}_{z}=0$) is compared to the analog transitions in $^{10}\mathrm{Be}$ ($T=1, {T}_{z}=−1$) and $^{10}\mathrm{C}$ ($T=1, {T}_{z}=+1$) to provide constraints on ab initio calculations using realistic nuclear force...

[Phys. Rev. C 96, 041301(R)] Published Tue Oct 03, 2017

In-beam $γ$-ray spectroscopy of low- and medium-spin levels in $^{211}\mathrm{Po}$


Author(s): J. M. K. Slotte, P. Granholm, R. Öhman, T. Lönnroth, S. Juutinen, J. Suhonen, P. M. Jones, R. Julin, J. Pakarinen, P. Rahkila, C. Scholey, J. Sorri, and J. Uusitalo

The structure of the low- and medium-spin levels of the $^{211}\mathrm{Po}$ nucleus have been studied with in-beam $γ$-ray spectroscopy with the $^{208}\mathrm{Pb}(α,n)^{211}\mathrm{Po}$ fusion-evaporation reaction. The level scheme was further extended with levels of the configurations $π{({h}_{9/2...

[Phys. Rev. C 96, 044302] Published Tue Oct 03, 2017

Correlated mass, energy, and angular distributions from bremsstrahlung-induced fission of $^{234}\mathrm{U}$ and $^{232}\mathrm{Th}$ in the energy region of the fission barrier


Author(s): A. Göök, C. Eckardt, J. Enders, M. Freudenberger, A. Oberstedt, and S. Oberstedt

The bremstrahlung-induced fission of $^{234}\mathrm{U}$ and $^{232}\mathrm{Th}$ has been studied at the superconducting Darmstadt linear accelerator (S-DALINAC) in the excitation energy region close to the fission barrier. Fission-fragment mass and total kinetic energy (TKE) distributions from $^{23...

[Phys. Rev. C 96, 044301] Published Mon Oct 02, 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

Thermonuclear $^{46}\mathbf{Cr}(p,γ)^{47}\mathbf{Mn}$ rate in type-I x-ray bursts


Author(s): J. J. He, A. Parikh, Y. Xu, Y. H. Zhang, X. H. Zhou, and H. S. Xu

The thermonuclear rate of the $^{46}\mathrm{Cr}(p,γ)^{47}\mathrm{Mn}$ reaction has been determined using a newly evaluated proton separation energy of ${S}_{p}(^{47}\mathrm{Mn})=380±30\phantom{\rule{4pt}{0ex}}\mathrm{keV}$ and nuclear structure information from the mirror nucleus $^{47}\mathrm{Ti}$....

[Phys. Rev. C 96, 045801] Published Mon Oct 02, 2017

New portal to the $^{15}\mathbf{O}(α,γ)^{19}\mathbf{Ne}$ resonance triggering CNO-cycle breakout


Author(s): C. Wrede, B. E. Glassman, D. Pérez-Loureiro, J. M. Allen, D. W. Bardayan, M. B. Bennett, B. A. Brown, K. A. Chipps, M. Febbraro, C. Fry, M. R. Hall, O. Hall, S. N. Liddick, P. O'Malley, W.-J. Ong, S. D. Pain, S. B. Schwartz, P. Shidling, H. Sims, P. Thompson, and H. Zhang

The $^{15}\mathrm{O}(α,γ)^{19}\mathrm{Ne}$ reaction is expected to trigger the initial path for breakout from the CNO hydrogen-burning cycles to the rapid proton capture $(rp)$ process in type I x-ray bursts on accreting neutron stars. The thermonuclear reaction rate has a major impact on models of ...

[Phys. Rev. C 96, 032801(R)] Published Fri Sep 29, 2017

In-beam $γ$-ray spectroscopy of $^{35}\mathrm{Mg}$ via knockout reactions at intermediate energies


Author(s): S. Momiyama, P. Doornenbal, H. Scheit, S. Takeuchi, M. Niikura, N. Aoi, K. Li, M. Matsushita, D. Steppenbeck, H. Wang, H. Baba, E. Ideguchi, M. Kimura, N. Kobayashi, Y. Kondo, J. Lee, S. Michimasa, T. Motobayashi, N. Shimizu, M. Takechi, Y. Togano, Y. Utsuno, K. Yoneda, and H. Sakurai

The isotope $^{35}\mathrm{Mg}$ was spectroscopically studied via nucleon-removal reactions from $^{36}\mathrm{Mg}$ and $^{37}\mathrm{Al}$ secondary beams at intermediate energies. The experiment's aim was to clarify the level structure of this nucleus located in between the $N=20$ and 28 shell quenc...

[Phys. Rev. C 96, 034328] Published Fri Sep 29, 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

In-medium bound states and pairing gap


Author(s): O. A. Rubtsova, V. I. Kukulin, V. N. Pomerantsev, and H. Müther

The two-particle Green's function and $T$ matrix including pphh correlations in infinite nuclear matter are evaluated by a diagonalization of the effective total Hamiltonian. This diagonalization procedure corresponds to the same eigenvalue problem as for the pphh Random Phase Approximation. The eff...

[Phys. Rev. C 96, 034327] Published Thu Sep 28, 2017

Effect of finite particle number sampling on baryon number fluctuations


Author(s): Jan Steinheimer and Volker Koch

The effects of finite particle number sampling on the net baryon number cumulants, extracted from fluid dynamical simulations, are studied. The commonly used finite particle number sampling procedure introduces an additional Poissonian (or multinomial if global baryon number conservation is enforced...

[Phys. Rev. C 96, 034907] Published Thu Sep 28, 2017

First-principle calculations of dark matter scattering off light nuclei


Author(s): C. Körber, A. Nogga, and J. de Vries

We study the scattering of dark matter particles off various light nuclei within the framework of chiral effective field theory. We focus on scalar interactions and include one- and two-nucleon scattering processes whose form and strength are dictated by chiral symmetry. The nuclear wave functions a...

[Phys. Rev. C 96, 035805] Published Thu Sep 28, 2017

First cross-section measurements of the reactions $^{107,109}\mathbf{Ag}(p,γ)^{108,110}\mathbf{Cd}$ at energies relevant to the $p$ process


Author(s): A. Khaliel, T. J. Mertzimekis, E.-M. Asimakopoulou, A. Kanellakopoulos, V. Lagaki, A. Psaltis, I. Psyrra, and E. Mavrommatis

Background: One of the primary objectives of the field of Nuclear Astrophysics is the study of the elemental and isotopic abundances in the universe. Although significant progress has been made in understanding the mechanisms behind the production of a large number of nuclides in the isotopic chart,...

[Phys. Rev. C 96, 035806] Published Thu Sep 28, 2017

Half-life measurement of short-lived $_{44}^{94m}\mathbf{Ru}^{44+}$ using isochronous mass spectrometry


Author(s): Q. Zeng et al.

Decay of the ${8}^{+}$ isomer in fully stripped ions $^{94}\mathrm{Ru}^{44+}$ is observed during its circulation in the experimental Cooler Storage Ring (CSRe) at the Heavy Ion Research Facility in Lanzhou (HIRFL). The $^{94}\mathrm{Ru}^{44+}$ ions were produced via projectile fragmentation and stor...

[Phys. Rev. C 96, 031303(R)] Published Wed Sep 27, 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

Lifetime measurements with improved precision in $^{30,32}\mathbf{S}$ and possible influence of large-scale clustering on the appearance of strongly deformed states


Author(s): P. Petkov, C. Müller-Gatermann, A. Dewald, A. Blazhev, C. Fransen, J. Jolie, P. Scholz, K. O. Zell, and A. Zilges

The formation of large size clusters and/or their relative motion as possible excitation mode are suggested to be closely related to the origin of deformation in specific cases. In $^{32}\mathrm{S}$, the consideration of some excitations in this nucleus as based on the existence of two doubly magic ...

[Phys. Rev. C 96, 034326] Published Tue Sep 26, 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

Formation and decay of resonance states in $^{9}\mathrm{Be}$ and $^{9}B$ nuclei: Microscopic three-cluster model investigations


Author(s): V. S. Vasilevsky, K. Katō, and N. Zh. Takibayev

We study the nature of the low-lying resonance states in mirror nuclei $^{9}\mathrm{Be}$ and $^{9}\mathrm{B}$. Investigations are performed within a three-cluster model. The model makes use of the hyperspherical harmonics, which provides a convenient description of the three-cluster continuum. The d...

[Phys. Rev. C 96, 034322] Published Mon Sep 25, 2017

$γ$-rigid solution of the Bohr Hamiltonian for the critical point description of the spherical to $γ$-rigidly deformed shape phase transition


Author(s): Yu Zhang, Feng Pan, Yu-Xin Liu, Yan-An Luo, and J. P. Draayer

The $γ$-rigid solution of the Bohr Hamiltonian with the $β$-soft potential and ${0}^{∘}≤γ≤{30}^{∘}$ is worked out. The resulting model, called T(4), provides a natural dynamical connection between the X(4) and the Z(4) critical-point symmetries, which thus serves as the critical-point symmetry of th...

[Phys. Rev. C 96, 034323] Published Mon Sep 25, 2017

Ab initio electromagnetic observables with the in-medium similarity renormalization group


Author(s): N. M. Parzuchowski, S. R. Stroberg, P. Navrátil, H. Hergert, and S. K. Bogner

We present the formalism for consistently transforming transition operators within the in-medium similarity renormalization group framework. We implement the operator transformation in both the equations-of-motion and valence-space variants, and present first results for electromagnetic transitions ...

[Phys. Rev. C 96, 034324] Published Mon Sep 25, 2017

High spin spectroscopy in $^{219}\mathrm{Ra}$: Search for the lower mass boundary of the region of statically octupole-deformed nuclei


Author(s): T. C. Hensley, P. D. Cottle, Vandana Tripathi, B. Abromeit, M. Anastasiou, L. T. Baby, J. S. Baron, D. Caussyn, R. Dungan, K. W. Kemper, R. S. Lubna, S. L. Miller, N. Rijal, M. A. Riley, S. L. Tabor, P.-L. Tai, and K. Villafana

We report the results of a study of rotational bands in $^{219}\mathrm{Ra}$ via the $^{208}\mathrm{Pb}(^{14}\mathrm{C},3n)$ reaction to look for evidence that this nucleus is statically octupole deformed. We add 19 $γ$ rays not previously observed to the level scheme and extend the two most strongly...

[Phys. Rev. C 96, 034325] Published Mon Sep 25, 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

Revealing long-range multiparticle collectivity in small collision systems via subevent cumulants


Author(s): Jiangyong Jia, Mingliang Zhou, and Adam Trzupek

Multiparticle azimuthal cumulants, often used to study collective flow in high-energy heavy-ion collisions, have recently been applied in small collision systems such as $pp$ and $p+A$ to extract the second-order azimuthal harmonic flow ${v}_{2}$. Recent observation of four-, six-, and eight-particl...

[Phys. Rev. C 96, 034906] Published Mon Sep 25, 2017

Outstanding problems in the band structures of $^{152}\mathrm{Sm}$


Author(s): J. B. Gupta and J. H. Hamilton

The recent data on $B(E2)$ values, deduced from the multi-Coulex excitation of the low spin states in the decay of $^{152}\mathrm{Sm}$, and other experimental findings in the last two decades are compared with the predictions from the microscopic dynamic pairing plus quadrupole model of Kumar and Ba...

[Phys. Rev. C 96, 034321] Published Fri Sep 22, 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

Neutron-skin thickness determines the surface tension of a compressible nuclear droplet


Author(s): W. Horiuchi, S. Ebata, and K. Iida

We systematically investigate the neutron-skin thickness of neutron-rich nuclei within a compressible droplet model, which includes several parameters characterizing the surface tension and the equation of state (EOS) of asymmetric nuclear matter as well as corrections due to the surface diffuseness...

[Phys. Rev. C 96, 035804] Published Fri Sep 22, 2017

Triaxial quadrupole dynamics and the inner fission barrier of some heavy even-even nuclei


Author(s): K. Benrabia, D. E. Medjadi, M. Imadalou, and P. Quentin

Background: Inner fission barriers of actinide nuclei have been known for a long time to be unstable with respect to the axial symmetry. On the other hand, taking into account the effect of the relevant adiabatic mass parameter reduces or even may wash out this instability. A proper treatment of the...

[Phys. Rev. C 96, 034320] Published Thu Sep 21, 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

One- and two-phonon $γ$-vibrational bands in neutron-rich $^{107}\mathrm{Mo}$


Author(s): J. Marcellino, E. H. Wang, C. J. Zachary, J. H. Hamilton, A. V. Ramayya, G. H. Bhat, J. A. Sheikh, A. C. Dai, W. Y. Liang, F. R. Xu, J. K. Hwang, N. T. Brewer, Y. X. Luo, J. O. Rasmussen, S. J. Zhu, G. M. Ter-Akopian, and Yu. Ts. Oganessian

Neutron-rich $^{107}\mathrm{Mo}$ has been reinvestigated by analyzing the large statistics $γ−γ−γ$ and $γ−γ−γ−γ$ coincidence data from the spontaneous fission of $^{252}\mathrm{Cf}$ at the Gammasphere detector array. Two new bands have been identified. The potential-energy surface calculations of th...

[Phys. Rev. C 96, 034319] Published Wed Sep 20, 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

Regge phenomenology in ${π}^{0}$ and $η$ photoproduction


Author(s): V. L. Kashevarov, M. Ostrick, and L. Tiator

The $γN→{π}^{0}N$ and $γN→ηN$ reactions at photon beam energies above 4 GeV are investigated within Regge models. The models include $t$-channel exchanges of vector ($ρ$ and $ω$) and axial-vector (${b}_{1}$ and ${h}_{1}$) mesons. Moreover, Regge cuts of $ρ\mathbb{P},\phantom{\rule{0.28em}{0ex}}ρ{f}_...

[Phys. Rev. C 96, 035207] Published Wed Sep 20, 2017

Quadrupole moment of $^{203}\mathrm{Fr}$


Author(s): S. G. Wilkins, K. M. Lynch, J. Billowes, C. L. Binnersley, M. L. Bissell, T. E. Cocolios, T. Day Goodacre, R. P. de Groote, G. J. Farooq-Smith, K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz, W. Gins, H. Heylen, Á. Koszorús, G. Neyens, H. H. Stroke, A. R. Vernon, K. D. A. Wendt, and X. F. Yang

The spectroscopic electric quadrupole moment of the neutron-deficient francium isotope $^{203}\mathrm{Fr}$ was measured by using high-resolution collinear resonance ionization spectroscopy (CRIS) at the CERN Isotope Separation On-Line Device (ISOLDE) facility. A remeasurement of the $^{207}\mathrm{F...

[Phys. Rev. C 96, 034317] Published Tue Sep 19, 2017

Toward a systematic strategy for defining power counting in the construction of the energy density functional


Author(s): C.-J. Yang, M. Grasso, and D. Lacroix

We propose a new scheme for constructing an effective-field-theory-based interaction to be used in the energy-density-functional (EDF) theory with specific assumptions for defining a power counting. This procedure is developed through the evaluation of the equation of state (EOS) of symmetric and pu...

[Phys. Rev. C 96, 034318] Published Tue Sep 19, 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

Losses and depolarization of ultracold neutrons on neutron guide and storage materials


Author(s): V. Bondar, S. Chesnevskaya, M. Daum, B. Franke, P. Geltenbort, L. Göltl, E. Gutsmiedl, J. Karch, M. Kasprzak, G. Kessler, K. Kirch, H.-C. Koch, A. Kraft, T. Lauer, B. Lauss, E. Pierre, G. Pignol, D. Reggiani, P. Schmidt-Wellenburg, Yu. Sobolev, T. Zechlau, and G. Zsigmond

At Institut Laue-Langevin (ILL) and Paul Scherrer Institute (PSI), we have measured the losses and depolarization probabilities of ultracold neutrons on various materials: (i) nickel-molybdenum alloys with weight percentages of 82/18, 85/15, 88/12, 91/9, and 94/6 and natural nickel Ni100, (ii) nicke...

[Phys. Rev. C 96, 035205] Published Tue Sep 19, 2017

Nucleon resonances in $γp→{K}^{*+}\mathrm{Λ}$


Author(s): A. C. Wang, W. L. Wang, F. Huang, H. Haberzettl, and K. Nakayama

The high-precision cross section data for the reaction $γp→{K}^{*+}\mathrm{Λ}$ reported by the CLAS Collaboration at the Thomas Jefferson National Accelerator Facility have been analyzed based on an effective Lagrangian approach in the tree-level approximation. Apart from the $t$-channel $K,\phantom...

[Phys. Rev. C 96, 035206] Published Tue Sep 19, 2017

Cluster decay in the superallowed $α$ decay region


Author(s): A. Bhagwat and R. J. Liotta

The emissions of $α$ particles and protons are the dominant decay channels in the neutron-deficient nuclei corresponding to the $sdg$ major shell. The possibility of cluster emission is explored here. It is shown that the cluster decay mode has a small yet sizable branching ratio.

[Phys. Rev. C 96, 031302(R)] Published Mon Sep 18, 2017

Generalized seniority on a deformed single-particle basis


Author(s): L. Y. Jia

Recently, I proposed a fast computing scheme for generalized seniority on a spherical single-particle basis [J. Phys. G: Nucl. Part. Phys. 42, 115105 (2015)]. This work redesigns the scheme to make it applicable to deformed single-particle basis. The algorithm is applied to the rare-earth-metal nucl...

[Phys. Rev. C 96, 034313] Published Mon Sep 18, 2017

Coulomb form factors of odd-$A$ nuclei within an axially deformed relativistic mean-field model


Author(s): Jian Liu, Chang Xu, Shuo Wang, and Zhongzhou Ren

Background: The nuclear Coulomb form factor $|{F}_{C}{(q)|}^{2}$ is a useful tool to study nuclear structure. For spherical nuclei, $|{F}_{C}{(q)|}^{2}$ can be calculated by combining the spherical relativistic mean-field (RMF) model and the distorted wave Born approximation (DWBA) method.

[Phys. Rev. C 96, 034314] Published Mon Sep 18, 2017

Quantum-state-selective decay spectroscopy of $^{213}\mathrm{Ra}$


Author(s): Ch. Lorenz, L. G. Sarmiento, D. Rudolph, D. E. Ward, M. Block, F. P. Heßberger, D. Ackermann, L.-L. Andersson, M. L. Cortés, C. Droese, M. Dworschak, M. Eibach, U. Forsberg, P. Golubev, R. Hoischen, I. Kojouharov, J. Khuyagbaatar, D. Nesterenko, I. Ragnarsson, H. Schaffner, L. Schweikhard, S. Stolze, and J. Wenzl

An experimental scheme combining the mass resolving power of a Penning trap with contemporary decay spectroscopy has been established at GSI Darmstadt. The Universal Linear Accelerator (UNILAC) at GSI Darmstadt provided a $^{48}\mathrm{Ca}$ beam impinging on a thin $^{170}\mathrm{Er}$ target foil. S...

[Phys. Rev. C 96, 034315] Published Mon Sep 18, 2017

Precision mass measurements of magnesium isotopes and implications for the validity of the isobaric mass multiplet equation


Author(s): M. Brodeur, A. A. Kwiatkowski, O. M. Drozdowski, C. Andreoiu, D. Burdette, A. Chaudhuri, U. Chowdhury, A. T. Gallant, A. Grossheim, G. Gwinner, H. Heggen, J. D. Holt, R. Klawitter, J. Lassen, K. G. Leach, A. Lennarz, C. Nicoloff, S. Raeder, B. E. Schultz, S. R. Stroberg, A. Teigelhöfer, R. Thompson, M. Wieser, and J. Dilling

If the mass excess of neutron-deficient nuclei and their neutron-rich mirror partners are both known, it can be shown that deviations of the isobaric mass multiplet equation (IMME) in the form of a cubic term can be probed. Such a cubic term was probed by using the atomic mass of neutron-rich magnes...

[Phys. Rev. C 96, 034316] Published Mon Sep 18, 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

Differential cross section measurements for $γn→{π}^{−}p$ above the first nucleon resonance region


Author(s): P. T. Mattione et al. (CLAS Collaboration)

The quasifree $γd→{π}^{−}p(p)$ differential cross section has been measured with CLAS at photon beam energies ${E}_{γ}$ from 0.445 to 2.510 GeV (corresponding to $W$ from 1.311 to 2.366 GeV) for pion center-of-mass angles $cos{θ}_{π}^{c.m.}$ from $−0.72$ to 0.92. A correction for final state interac...

[Phys. Rev. C 96, 035204] 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

Shell-model investigation of spectroscopic properties and collectivity in the nuclei beyond $^{132}\mathbf{Sn}$


Author(s): H. Naïdja, F. Nowacki, and B. Bounthong

The recent shell-model results of even-even chains of nuclei: $^{134,136,138}\mathrm{Te},^{136,138,140}\mathrm{Xe},^{138,140,142}\mathrm{Ba},^{140,142,144}\mathrm{Ce}$, and $^{142,144,146}\mathrm{Nd}$ are explored in this manuscript. The low-lying states energies, E2 and M1 transitions, are investig...

[Phys. Rev. C 96, 034312] Published Wed Sep 13, 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

Comparison of the structure function ${F}_{2}$ as measured by charged lepton and neutrino scattering from iron targets


Author(s): N. Kalantarians, C. Keppel, and M. E. Christy

A comparison study of world data for the structure function ${F}_{2}$ for iron, as measured by both charged lepton and neutrino scattering experiments, is presented. Consistency of results for both charged lepton and neutrino scattering is observed for the full global data set in the valence regime....

[Phys. Rev. C 96, 032201(R)] Published Tue Sep 12, 2017