Added By: Feedage Forager | |
Language: English | |
Tags: | |
author feb model mon feb mon phys rev phys published mon published tue published rev published rev tue feb | |
Rate this Feed |
Comments (0) |
Feed Details and Statistics |
Published: 2018-02-21T01:03:13+00:00
2018-02-20T10:00:00+00:00
Author(s): M. N. Achasov et al.The ${e}^{+}{e}^{−}→{K}_{S}{K}_{L}{π}^{0}$ cross section is measured in the center-of-mass energy range $\sqrt{s}=1.3–2.0\text{ }\text{ }\mathrm{GeV}$. The analysis is based on the data sample with an integrated luminosity of $33.5\text{ }\text{ }{\mathrm{pb}}^{−1}$ collected with the SND detector a...
2018-02-20T10:00:00+00:00
Author(s): Angel Escamilla, Antonio O. Bouzas, and F. LariosWe study single-top production at linear lepton colliders with $\sqrt{s}=0.5$, 1, and 3 TeV. A preliminary analysis shows that despite the large $t\overline{t}$ background at $\sqrt{s}=0.5$ and 1 TeV it is possible to obtain a good sensitivity to the $tbW$ vertex, even more so at 3 TeV when single t...
2018-02-20T10:00:00+00:00
Author(s): B. W. Mintz, L. F. Palhares, S. P. Sorella, and A. D. PereiraWe consider Yang-Mills theories quantized in the Landau gauge in the presence of the Gribov horizon via the refined Gribov-Zwanziger (RGZ) framework. As the restriction of the gauge path integral to the Gribov region is taken into account, the resulting gauge field propagators display a nontrivial i...
2018-02-20T10:00:00+00:00
Author(s): F. R. Anger, F. Febres Cordero, H. Ita, and V. SotnikovIn this article we present the next-to-leading order QCD predictions for $Wb\overline{b}+n\text{−}\mathrm{jet}$ ($n=0$, 1, 2, 3) production at the Large Hadron Collider with $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$. We work in the four-flavor number scheme with a nonvanishing bottom-quark mass and ...
2018-02-20T10:00:00+00:00
Author(s): Andrew D. Bond, Daniel F. Litim, Gustavo Medina Vazquez, and Tom SteudtnerInteracting fixed points in four-dimensional gauge theories coupled to matter are investigated using perturbation theory up to three loop order. It is shown how fixed points, scaling exponents, and anomalous dimensions are obtained as a systematic power series in a small parameter. The underlying or...
2018-02-20T10:00:00+00:00
Author(s): Santiago Casas, Martin Pauly, and Javier RubioThe Higgs-dilaton model is a scale-invariant extension of the Standard Model nonminimally coupled to gravity and containing just one additional degree of freedom on top of the Standard Model particle content. This minimalistic scenario predicts a set of measurable consistency relations between the i...
2018-02-20T10:00:00+00:00
Author(s): Boryana Hadzhiyska, David Spergel, and Joanna DunkleyCalculations of the cosmic microwave background (CMB) lensing power implemented into the standard cosmological codes such as camb and class usually treat the surface of last scatter as an infinitely thin screen. However, since the CMB anisotropies are smoothed out on scales smaller than the diffusio...
2018-02-20T10:00:00+00:00
Author(s): Christopher Sheehy and Anže SlosarConstraints on inflationary $B$ modes using cosmic microwave background polarization data commonly rely on either template cleaning or cross-spectra between maps at different frequencies to disentangle Galactic foregrounds from the cosmological signal. Assumptions about how the foregrounds scale wit...
2018-02-20T10:00:00+00:00
Author(s): Beatriz Elizaga Navascués, Daniel Martín de Blas, and Guillermo A. Mena MarugánLoop quantum cosmology has recently been applied in order to extend the analysis of primordial perturbations to the Planck era and discuss the possible effects of quantum geometry on the cosmic microwave background. Two approaches to loop quantum cosmology with admissible ultraviolet behavior leadin...
2018-02-20T10:00:00+00:00
Author(s): Tanguy Marchand, Laura Bernard, Luc Blanchet, and Guillaume FayeWe present the first complete (i.e., ambiguity-free) derivation of the equations of motion of two nonspinning compact objects up to the 4PN (post-Newtonian) order, based on the Fokker action of point particles in harmonic coordinates. The last ambiguity parameter is determined from first principle, ...
2018-02-20T10:00:00+00:00
Author(s): Özgür Akarsu, Alexey Chopovsky, Maxim Eingorn, Seyed Hossein Fakhr, and Alexander ZhukWe consider 5D brane world models with broken global 4D Poincaré invariance (4D part of the spacetime metric is not conformal to the Minkowski spacetime). The bulk is filled with the negative cosmological constant and may contain a perfect fluid. In the case of empty bulk (the perfect fluid is absen...
2018-02-20T10:00:00+00:00
Author(s): H. T. NiehThe potential conflict between torsion and gauge symmetry in the Riemann-Cartan curved spacetime was noted by Kibble in his 1961 pioneering paper and has since been discussed by many authors. Kibble suggested that, to preserve gauge symmetry, one should forgo the covariant derivative in favor of the...
2018-02-20T10:00:00+00:00
Author(s): Emil T. Akhmedov and Francesco BasconeTo model a realistic situation for the beginning we consider massive real scalar ${ϕ}^{4}$ theory in a ($1+1$)-dimensional asymptotically static Minkowski spacetime with an intermediate stage of expansion. To have an analytic headway we assume that scalars have a big mass. At past and future infinit...
2018-02-20T10:00:00+00:00
Author(s): Marc Henneaux, Sergio Hörtner, and Amaury Leonard2018-02-20T10:00:00+00:00
Author(s): Rodrigo Maier and Ivano Damião Soares2018-02-20T10:00:00+00:00
Author(s): Lionel Martellini and Tania RegimbauWe present an erratum with respect to the paper. The results presented are based on an incorrect expression for the standard detection statistic, which does not include the correction to the cross-correlation term that is required when the detector sensitivities are assumed to be known. We are grate...
2018-02-16T10:00:00+00:00
Author(s): R. Aaij et al. (LHCb Collaboration)Investigations of the existence of pentaquark states containing a single $b$ (anti)quark decaying weakly into four specific final states $J/ψ{K}^{+}{π}^{−}p$, $J/ψ{K}^{−}{π}^{−}p$, $J/ψ{K}^{−}{π}^{+}p$, and $J/ψϕ(1020)p$ are reported. The data sample corresponds to an integrated luminosity of $3.0\t...
2018-02-16T10:00:00+00:00
Author(s): V. A. Khoze, A. D. Martin, and M. G. RyskinThe predictions of a model which was tuned in 2013 to describe the elastic and diffractive $pp$- and/or $p\overline{p}$-data at collider energies up to 7 TeV are compared with the new 13 TeV TOTEM results. The possibility of the presence of an odd-signature Odderon exchange contribution is discussed...
2018-02-16T10:00:00+00:00
Author(s): Carlotta Marchis and Christof GattringerWe present a new dual representation for lattice QCD in terms of wordlines and worldsheets. The exact reformulation is carried out using the recently developed Abelian color flux method where the action is decomposed into commuting minimal terms that connect different colors on neighboring sites. Ex...
2018-02-16T10:00:00+00:00
Author(s): N. N. Achasov and A. V. KiselevIt is shown that the recent data on the ${K}_{S}^{0}{K}^{+}$ correlation in Pb-Pb interactions agree with the data on the $γγ→η{π}^{0}$ and $ϕ→η{π}^{0}γ$ reactions and support the four-quark model of the ${a}_{0}(980)$ meson. It is shown that the data does not contradict the validity of the Gaussian...
2018-02-16T10:00:00+00:00
Author(s): Rui Chen, Atsushi Hosaka, and Xiang LiuStimulated by the recent observation of ${\mathrm{Ω}}_{c}$ as well as past observations of ${P}_{c}(4380)$ and ${P}_{c}(4450)$, we perform a coupled-channel analysis of ${\mathrm{Ξ}}_{c}^{*}\overline{K}/{\mathrm{Ω}}_{c}η/{\mathrm{Ω}}_{c}^{*}η/{\mathrm{Ξ}}_{c}{\overline{K}}^{*}/{\mathrm{Ξ}}_{c}^{′}{\...
2018-02-16T10:00:00+00:00
Author(s): H. Weigel, M. Quandt, and N. GrahamWe develop a method to compute the vacuum polarization energy for coupled scalar fields with different masses scattering off a background potential in one space dimension. As an example we consider the vacuum polarization energy of a kinklike soliton built from two real scalar fields with different ...
2018-02-16T10:00:00+00:00
Author(s): Hajime Aoki, Satoshi Iso, Da-Shin Lee, Yasuhiro Sekino, and Chen-Pin YehWe consider an open universe created by bubble nucleation, and study possible effects of our “ancestor vacuum,” a de Sitter space in which bubble nucleation occurred, on the present universe. We compute vacuum expectation values of the energy-momentum tensor for a minimally coupled scalar field, car...
2018-02-16T10:00:00+00:00
Author(s): Miguel Aparicio Resco and Antonio L. MarotoIt is well known that an extremely accurate parametrization of the growth function of matter density perturbations in $\mathrm{Λ}\mathrm{CDM}$ cosmology, with errors below 0.25%, is given by $f(a)={\mathrm{Ω}}_{m}^{γ}(a)$ with $γ≃0.55$. In this work, we show that a simple modification of this expres...
2018-02-16T10:00:00+00:00
Author(s): Simone Peirone, Kazuya Koyama, Levon Pogosian, Marco Raveri, and Alessandra SilvestriPhenomenological functions $\mathrm{Σ}$ and $μ$, also known as ${G}_{\text{light}}/G$ and ${G}_{\text{matter}}/G$, are commonly used to parametrize modifications of the growth of large-scale structure in alternative theories of gravity. We study the values these functions can take in Horndeski theor...
2018-02-16T10:00:00+00:00
Author(s): Oliver J. Tattersall, Pedro G. Ferreira, and Macarena LagosWe use the covariant formulation proposed by Tattersall, Lagos, and Ferreira [Phys. Rev. D 96, 064011 (2017)] to analyze the structure of linear perturbations about a spherically symmetric background in different families of gravity theories, and hence study how quasinormal modes of perturbed black ...
2018-02-15T10:00:00+00:00
Author(s): A. M. Sirunyan et al. (CMS Collaboration)A search for new physics is presented in final states with two oppositely charged leptons (electrons or muons), jets identified as originating from $b$ quarks, and missing transverse momentum (${p}_{\mathrm{T}}^{\mathrm{miss}}$). The search uses proton-proton collision data at $\sqrt{s}=13\text{ }\t...
2018-02-15T10:00:00+00:00
Author(s): D. K. Papoulias and T. S. KosmasThe process of neutral-current coherent elastic neutrino-nucleus scattering, consistent with the Standard Model (SM) expectation, has been recently measured by the COHERENT experiment at the Spallation Neutron Source. On the basis of the observed signal and our nuclear calculations for the relevant ...
2018-02-15T10:00:00+00:00
Author(s): Chen Chen, Bruno El-Bennich, Craig D. Roberts, Sebastian M. Schmidt, Jorge Segovia, and Shaolong WanA continuum approach to the three valence-quark bound-state problem in quantum field theory is used to perform a comparative study of the four lightest $(I=1/2,{J}^{P}=1/{2}^{±})$ baryon isospin doublets in order to elucidate their structural similarities and differences. Such analyses predict the p...
2018-02-15T10:00:00+00:00
Author(s): T. Lappi and J. PeuronWe study the plasmon mass scale in classical gluodynamics in a two-dimensional configuration that mimics the boost-invariant initial color fields in a heavy-ion collision. We numerically measure the plasmon mass scale using three different methods: a hard thermal loop (HTL) expression involving the ...
2018-02-15T10:00:00+00:00
Author(s): Er-Liang Cui, Hua-Xing Chen, Wei Chen, Xiang Liu, and Shi-Lin ZhuWe use the method of light-cone sum rules to study the electromagnetic transition of the ${\mathrm{Ξ}}_{cc}^{*++}$ into ${\mathrm{Ξ}}_{cc}^{++}γ$, whose decay width is estimated to be ${13.7}_{−7.9}^{+17.7}\text{ }\text{ }\mathrm{keV}$. This value is large enough for the ${\mathrm{Ξ}}_{cc}^{*++}$ to...
2018-02-15T10:00:00+00:00
Author(s): Keh-Fei Liu, Jian Liang, and Yi-Bo YangIt is a common problem in lattice QCD calculation of the mass of the hadron with an annihilation channel that the signal falls off in time while the noise remains constant. In addition, the disconnected insertion calculation of the three-point function and the calculation of the neutron electric dip...
2018-02-15T10:00:00+00:00
Author(s): Alexander Belyaev, Giacomo Cacciapaglia, Igor P. Ivanov, Felipe Rojas-Abatte, and Marc ThomasThe inert two-Higgs-doublet model (i2HDM) is a theoretically well-motivated example of a minimal consistent dark matter (DM) model which provides monojet, mono-$Z$, mono-Higgs, and vector-boson-$\mathrm{fusion}+{\mathbit{E}}_{\mathrm{T}}^{\mathrm{miss}}$ signatures at the LHC, complemented by signal...
2018-02-15T10:00:00+00:00
Author(s): Hiromichi Nishimura, Robert D. Pisarski, and Vladimir V. SkokovWe study phase transitions in $SU(∞)$ gauge theories at nonzero temperature using matrix models. Our basic assumption is that the effective potential is dominated by double trace terms for the Polyakov loops. As a function of the various parameters, related to terms linear, quadratic, and quartic in...
2018-02-15T10:00:00+00:00
Author(s): Noah Weaverdyck, Jessica Muir, and Dragan HutererThe decay of gravitational potentials in the presence of dark energy leads to an additional, late-time contribution to anisotropies in the cosmic microwave background (CMB) at large angular scales. The imprint of this so-called integrated Sachs-Wolfe (ISW) effect to the CMB angular power spectrum ha...
2018-02-15T10:00:00+00:00
Author(s): C. PanagiotakopoulosWe show how supersymmetric hybrid inflation with scalar spectral index ${n}_{\mathrm{s}}≃0.96–0.97$ is realized in the context of quasiminimal supergravity if we insist that the inflationary potential not exhibit any local extrema. We also address the problem of the initial conditions for both monot...
2018-02-15T10:00:00+00:00
Author(s): Jose Luis Blázquez-Salcedo and Christian KnollWe consider quasinormal modes of the massive Dirac field in the background of a Schwarzschild-Tangherlini black hole. Different dimensions of the spacetime are considered, from $d=4$ to $d=9$. The quasinormal modes are calculated using two independent methods: WKB and continued fraction. We obtain t...
2018-02-15T10:00:00+00:00
Author(s): S. K. Maurya, Ayan Banerjee, and Sudan HansrajWe investigate a compact spherically symmetric relativistic body with anisotropic particle pressure profiles. The distribution possesses characteristics relevant to modeling compact stars within the framework of general relativity. For this purpose, we consider a spatial metric potential of Korkina ...
2018-02-15T10:00:00+00:00
Author(s): Mikhail N. SmolyakovIn the present paper, perturbations against a Q-ball solution are considered. It is shown that if we calculate the U(1) charge and the energy of the modes, which are solutions to linearized equations of motion, up to the second order in perturbations, we will get incorrect results. In particular, fo...
2018-02-15T10:00:00+00:00
Author(s): Gabriel Cuomo, Anton de la Fuente, Alexander Monin, David Pirtskhalava, and Riccardo RattazziWe compute the scaling dimensions of operators with large global charge and spin in $2+1$ dimensional conformal field theories. By the state-operator correspondence, these operators correspond to superfluids with vortices and can be systematically studied using effective field theory. As the spin in...
2018-02-15T10:00:00+00:00
Author(s): Stefano Bianco, Victor Nicolai Friedhoff, and Edward Wilson-EwingFor a certain type of modified dispersion relations, the vacuum quantum state for very short wavelength cosmological perturbations is scale-invariant and it has been suggested that this may be the source of the scale-invariance observed in the temperature anisotropies in the cosmic microwave backgro...
2018-02-15T10:00:00+00:00
Author(s): Nicolai Christiansen, Kevin Falls, Jan M. Pawlowski, and Manuel ReichertWe investigate the phase diagram of quantum gravity with a vertex expansion about constantly-curved backgrounds. The graviton two- and three-point function are evaluated with a spectral sum on a sphere. We obtain, for the first time, curvature-dependent UV fixed point functions of the dynamical fluc...
2018-02-15T10:00:00+00:00
Author(s): N. Klitgaard and R. LollMotivated by the search for geometric observables in nonperturbative quantum gravity, we define a notion of coarse-grained Ricci curvature. It is based on a particular way of extracting the local Ricci curvature of a smooth Riemannian manifold by comparing the distance between pairs of spheres with ...
2018-02-15T10:00:00+00:00
Author(s): Friedrich SchöllerThis work provides a smooth and everywhere well-defined extension of Bondi-Metzner-Sachs (BMS) supertranslations into the bulk of Minkowski space. The supertranslations lead to physically distinct spacetimes, all isometric to Minkowski space. This construction is in contrast to the often used, nonsm...
2018-02-14T10:00:00+00:00
Author(s): Martin Lavelle and David McMullanWe present a description of electrons propagating in an elliptically polarized, plane wave background which includes circular and linear polarizations as special cases. We calculate, to all orders in the background field, the two point function and relate it to various expressions found in the liter...
2018-02-14T10:00:00+00:00
Author(s): R. FootDissipative dark matter, where dark matter particle properties closely resemble familiar baryonic matter, is considered. Mirror dark matter, which arises from an isomorphic hidden sector, is a specific and theoretically constrained scenario. Other possibilities include models with more generic hidde...
2018-02-14T10:00:00+00:00
Author(s): Keisuke Inomata, Masahiro Kawasaki, Kyohei Mukaida, and Tsutomu T. YanagidaA primordial black hole (PBH) is one of the leading nonparticle candidates for dark matter (DM). Although several observations severely constrain the amount of PBHs, it was recently pointed out that there is an uncertainty on the microlensing constraints below $∼{10}^{−10}\text{ }\text{ }{M}_{⊙}$, w...
2018-02-14T10:00:00+00:00
Author(s): S. Krasnikov and M. V. SkvortsovaA number of long-standing puzzles, such as the origin of extreme-energy cosmic rays, could perhaps be solved if we found a mechanism for effectively transferring energy from black holes to particles and, correspondingly, accelerating the latter to (unboundedly, as long as we neglect the back reactio...
2018-02-13T10:00:00+00:00
Author(s): N. G. Antoniou, F. K. Diakonos, X. N. Maintas, and C. E. TsagkarakisConsidering the 3D Ising universality class of the QCD critical endpoint, we use a universal effective action for the description of the baryon-number density fluctuations around the critical region. Calculating the baryon-number multiplicity moments and determining their scaling with system’s size,...
2018-02-13T10:00:00+00:00
Author(s): Pankaj Agrawal, Debashis Saha, and Ambresh ShivajiWe consider the production of two Higgs bosons in association with a gauge boson or another Higgs boson at the hadron colliders. We compute the cross sections and distributions for the processes $pp→HHH$ and $HHZ$ within the standard model. In particular, we compute the gluon-gluon fusion one-loop c...
2018-02-13T10:00:00+00:00
Author(s): Ling-Yun Dai, Xian-Wei Kang, Ulf-G. Meißner, Xin-Ying Song, and De-Liang YaoIn this paper we perform an amplitude analysis of ${η}^{′}→{π}^{+}{π}^{−}γ$ and confront it with the latest BESIII data. Based on the final-state interaction theorem, we represent the amplitude in terms of an Omnés function multiplied by a form factor that corresponds to the contributions from left-...
2018-02-13T10:00:00+00:00
Author(s): S. Boran, S. Desai, E. O. Kahya, and R. P. WoodardOn August 17, 2017 the LIGO interferometers detected the gravitational wave (GW) signal (GW170817) from the coalescence of binary neutron stars. This signal was also simultaneously seen throughout the electromagnetic (EM) spectrum from radio waves to gamma rays. We point out that this simultaneous d...
2018-02-13T10:00:00+00:00
Author(s): Shuailiang Ge, Xunyu Liang, and Ariel ZhitnitskyWe study a dark matter (DM) model offering a very natural explanation of two (naively unrelated) problems in cosmology: the observed relation ${\mathrm{Ω}}_{\mathrm{DM}}∼{\mathrm{Ω}}_{\text{visible}}$ and the observed asymmetry between matter and antimatter in the Universe, known as the “baryogenesi...
2018-02-13T10:00:00+00:00
Author(s): Giorgio Arcadi, Miguel D. Campos, Manfred Lindner, Antonio Masiero, and Farinaldo S. QueirozWe revisit the status of a Majorana fermion as a dark matter candidate when a sequential ${Z}^{′}$ gauge boson dictates the dark matter phenomenology. Direct dark matter detection signatures rise from dark matter-nucleus scatterings at bubble chamber and liquid xenon detectors, and from the flux of ...
2018-02-13T10:00:00+00:00
Author(s): Amol Dighe and Manibrata SenWe study the effects of nonstandard self-interactions (NSSI) of neutrinos streaming out of a core-collapse supernova. We show that with NSSI, the standard linear stability analysis gives rise to linearly as well as exponentially growing solutions. For a two-box spectrum, we demonstrate analytically ...
2018-02-13T10:00:00+00:00
Author(s): Mariana Carrillo González and Mark TroddenWe consider the relationship between fluid models of an interacting dark sector and the field theoretical models that underlie such descriptions. This question is particularly important in light of suggestions that such interactions may help alleviate a number of current tensions between different c...
2018-02-13T10:00:00+00:00
Author(s): William E. East, Radosław Wojtak, and Tom AbelIn the standard approach to studying cosmological structure formation, the overall expansion of the Universe is assumed to be homogeneous, with the gravitational effect of inhomogeneities encoded entirely in a Newtonian potential. A topic of ongoing debate is to what degree this fully captures the d...
2018-02-13T10:00:00+00:00
Author(s): Andrew J. Long, Marco Raveri, Wayne Hu, and Scott DodelsonCosmological measurements of structure are placing increasingly strong constraints on the sum of the neutrino masses, $\mathrm{Σ}{m}_{ν}$, through Bayesian inference. Because these constraints depend on the choice for the prior probability $π(\mathrm{Σ}{m}_{ν})$, we argue that this prior should be m...
2018-02-13T10:00:00+00:00
Author(s): Eleonora Di Valentino, Céline Bœhm, Eric Hivon, and François R. BouchetThe introduction of dark matter-neutrino interactions modifies the cosmic microwave background (CMB) angular power spectrum at all scales, thus affecting the reconstruction of the cosmological parameters. Such interactions can lead to a slight increase of the value of ${H}_{0}$ and a slight decrease...
2018-02-13T10:00:00+00:00
Author(s): J. R. van MeterEinstein originally proposed a nonsymmetric tensor field, with its symmetric part associated with the spacetime metric and its antisymmetric part associated with the electromagnetic field, as an approach to a unified field theory. Here we interpret it more modestly as an alternative to Einstein-Maxw...
2018-02-13T10:00:00+00:00
Author(s): Oscar VarelaThe truncation formulas of $D=11$ supergravity on ${S}^{7}$ to $D=4$ $\mathcal{N}=8$ SO(8)-gauged supergravity are completed to include the full nonlinear dependence of the $D=11$ three-form potential ${\stackrel{^}{A}}_{(3)}$ on the $D=4$ fields, and their consistency is shown. The full embedding i...
2018-02-12T10:00:00+00:00
Author(s): M. Ablikim et al. (BESIII Collaboration)Using a data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of $\sqrt{s}=4.600\text{ }\text{ }\mathrm{GeV}$, we search for the production of ${e}^{+}{e}^{−}→ϕ{χ}_{c0,1,2}$. A search is also performed for the charmonium-like state $X(4140)$ i...
2018-02-12T10:00:00+00:00
Author(s): Zhou RuiMotivated by the large number of ${B}_{c}$ meson decay modes observed recently by several detectors at the LHC, we present a detailed analysis of the ${B}_{c}$ meson decaying to the $P$-wave charmonium states and a light pseudoscalar ($P$) or vector ($V$) meson within the framework of perturbative Q...
2018-02-12T10:00:00+00:00
Author(s): Ezequiel Alvarez, Leandro Da Rold, Mariel Estevez, and Jernej F. KamenikWe propose a direct measurement of the Cabibbo-Kobayashi-Maskawa element ${V}_{td}$ at the LHC. Making use of the imbalance between $d$ and $\overline{d}$ quark content in the proton, we show that a nonzero ${V}_{td}$ induces a charge asymmetry in the $tW$ associated production. The main backgrounds...
2018-02-12T10:00:00+00:00
Author(s): De-Liang YaoWe calculate the masses and sigma terms of the doubly charmed baryons up to next-to-next-to-next-to-leading order [i.e., $\mathcal{O}({p}^{4})$] in a covariant baryon chiral perturbation theory by using the extended-on-mass-shell renormalization scheme. Their expressions both in infinite and finite ...
2018-02-12T10:00:00+00:00
Author(s): Naoto Tanji and Jürgen BergesWe perform real-time lattice simulations of nonequilibrium quark production in the longitudinally expanding QCD plasma. Starting from a highly occupied gluonic state with vacuum quark sector, we extract the time evolution of quark and gluon number densities per unit transverse area and rapidity. The...
2018-02-12T10:00:00+00:00
Author(s): Lingxiao Wang and Gaoqing CaoIn this work, we explore the competition between magnetic catalysis effect and chiral rotation effect in a general parallel electromagnetic field within the effective Nambu–Jona-Lasinio model. For a given electric field $E$ at zero temperature, the mass gap shows three different features with respec...
2018-02-12T10:00:00+00:00
Author(s): G. S. Bali, B. B. Brandt, G. Endrődi, and B. GläßleWe determine the light meson spectrum in QCD in the presence of background magnetic fields using quenched Wilson fermions. Our continuum extrapolated results indicate a monotonous reduction of the connected neutral pion mass as the magnetic field grows. The vector meson mass is found to remain nonze...
2018-02-12T10:00:00+00:00
Author(s): Constantia Alexandrou, Joshua Berlin, Mattia Dalla Brida, Jacob Finkenrath, Theodoros Leontiou, and Marc WagnerWe investigate the quark content of the low-lying states in the $I({J}^{P})=1({0}^{+})$ sector, which are the quantum numbers of the ${a}_{0}(980)$ meson, using lattice QCD. To this end, we consider correlation functions of six different two- and four-quark interpolating fields. We evaluate all diag...
2018-02-12T10:00:00+00:00
Author(s): James B. Dent, Bhaskar Dutta, Shu Liao, Jayden L. Newstead, Louis E. Strigari, and Joel W. WalkerWe study the complementarity between accelerator and reactor coherent elastic neutrino-nucleus elastic scattering ($\mathrm{CE}ν\mathrm{NS}$) experiments for constraining new physics in the form of nonstandard neutrino interactions (NSI). First, considering just data from the recent observation by t...
2018-02-12T10:00:00+00:00
Author(s): Rodrigo Alonso, Kirill Kanshin, and Sara SaaThe one-loop renormalization of the action for a set of Dirac fermions and a set of scalars spanning an arbitrary manifold coupled via Yukawa-like and gauge interactions is presented. The computation is performed with functional methods and in a geometric formulation that preserves at all stages the...
2018-02-12T10:00:00+00:00
Author(s): Moira I. Gresham, Hou Keong Lou, and Kathryn M. ZurekWe compute the mass function of bound states of asymmetric dark matter—nuggets—synthesized in the early Universe. We apply our results for the nugget density and binding energy computed from a nuclear model to obtain analytic estimates of the typical nugget size exiting synthesis. We numerically sol...
2018-02-12T10:00:00+00:00
Author(s): Kübra Yeter-Aydeniz and George SiopsisWe present a quantum algorithm for the calculation of scattering amplitudes of massive charged scalar particles in scalar quantum electrodynamics. Our algorithm is based on continuous-variable quantum computing architecture resulting in exponential speedup over classical methods. We derive a simple ...
2018-02-12T10:00:00+00:00
Author(s): M. E. Carrington, S. A. Friesen, B. A. Meggison, C. D. Phillips, D. Pickering, and K. SohrabiWe consider a symmetric scalar theory with quartic coupling in four dimensions. We show that the four-loop 2PI calculation can be done using a renormalization group method. The calculation involves one bare coupling constant which is introduced at the level of the Lagrangian and is therefore concept...
2018-02-12T10:00:00+00:00
Author(s): Fangcheng He and P. WangThe relativistic version of finite-range regularization is proposed. The covariant regulator is generated from the nonlocal Lagrangian. This nonlocal interaction is gauge invariant and is applied to study the nucleon electromagnetic form factors at momentum transfer up to $2\text{ }\text{ }{\mathrm{...
2018-02-12T10:00:00+00:00
Author(s): Klaountia PasmatsiouWe examine how the breaking of shift symmetry affects the formation of caustics for the standard canonical kinetic theory as well as for the DBI theory. We show, in this case, that the standard canonical kinetic theory is caustic free but the same does not always apply for the DBI model. We make sim...
2018-02-12T10:00:00+00:00
Author(s): S. Carignano, M. Mannarelli, F. Anzuini, and O. BenharThe authors develop a novel expansion for theories near a Lifshitz point, where a spatially inhomogeneous phase develops.
(image)2018-02-12T10:00:00+00:00
Author(s): R. Acconcia, D. D. Chinellato, R. Derradi de Souza, J. Takahashi, G. Torrieri, and C. MarkertWe present studies that show how multi-parton interaction and color reconnection affect the hadro-chemistry in proton-proton (pp) collisions with special focus on the production of resonances using the pythia8 event generator. We find that color reconnection suppresses the relative production of mes...
2018-02-12T10:00:00+00:00
Author(s): Michał Marczenko and Chihiro SasakiWe study the mean-field thermodynamics and the characteristics of the net-baryon number fluctuations at the phase boundaries for the chiral and deconfinement transitions in the hybrid quark-meson-nucleon model. The chiral dynamics is described in the linear sigma model, whereas the quark confinement...
2018-02-12T10:00:00+00:00
Author(s): Hyun-Chul Kim, Maxim V. Polyakov, Michał Praszałowicz, and Ghil-Seok YangWe present a corrected calculation of the decay widths of the putative exotic heavy ${\mathrm{Ω}}_{c}^{0}$ states to the ground state ${\mathrm{SU}(3)}_{\text{flavor}}$ sextets of heavy baryons. In the article we have used formulas summed over the final spin $1/2$ and $3/2$ sextets. These states, ho...
2018-02-12T10:00:00+00:00
Author(s): M. Safari and G. P. VaccaWe employ perturbative renormalization group and $ε$-expansion to study multicritical single-scalar field theories with higher derivative kinetic terms of the form $ϕ(−□{)}^{k}ϕ$. We focus on those with a ${\mathbb{Z}}_{2}$-symmetric critical point which are characterized by an upper critical dimens...
2018-02-12T10:00:00+00:00
Author(s): Luca Comisso and Felipe A. AsenjoMagnetic reconnection in curved spacetime is studied by adopting a general-relativistic magnetohydrodynamic model that retains collisionless effects for both electron-ion and pair plasmas. A simple generalization of the standard Sweet-Parker model allows us to obtain the first-order effects of the g...
2018-02-12T10:00:00+00:00
Author(s): Luis A. Anchordoqui and Jorge F. SorianoWe propose an innovative test of Lorentz symmetry by observing pairs of simultaneous parallel extensive air showers produced by the fragments of ultrahigh-energy cosmic ray nuclei which disintegrated in collisions with solar photons. We show that the search for a cross-correlation of showers in arri...
2018-02-12T10:00:00+00:00
Author(s): Sibel Boran and E. O. KahyaWe discuss quantum gravitational loop effects to observable quantities such as curvature power spectrum and primordial non-Gaussianity of cosmic microwave background (CMB) radiation. We first review the previously shown case where one gets a time dependence for zeta-zeta correlator due to loop corre...
2018-02-12T10:00:00+00:00
Author(s): Peter Adshead, Andrew J. Long, and Evangelos I. SfakianakisGravitational leptogenesis refers to a class of baryogenesis models in which the matter-antimatter asymmetry of the Universe arises through the standard model lepton-number gravitational anomaly. In these models chiral gravitational waves source a lepton asymmetry in standard model neutrinos during ...
2018-02-12T10:00:00+00:00
Author(s): Sebastian F. Bramberger, Andrew Coates, João Magueijo, Shinji Mukohyama, Ryo Namba, and Yota WatanabeIn Hořava-Lifshitz gravity a scaling isotropic in space but anisotropic in spacetime, often called “anisotropic scaling,” with the dynamical critical exponent $z=3$, lies at the base of its renormalizability. This scaling also leads to a novel mechanism of generating scale-invariant cosmological per...
2018-02-12T10:00:00+00:00
Author(s): Leonardo Modesto, Yun Soo Myung, and Sang-Heon YiIn this paper we prove the universal nature of the Unruh effect in a general class of weakly nonlocal field theories. At the same time we solve the tension between two conflicting claims published in literature. Our universality statement is based on two independent computations based on the canonic...
2018-02-12T10:00:00+00:00
Author(s): Grant David Meadors, Badri Krishnan, Maria Alessandra Papa, John T. Whelan, and Yuanhao ZhangContinuous-wave (CW) gravitational waves (GWs) call for computationally-intensive methods. Low signal-to-noise ratio signals need templated searches with long coherent integration times and thus fine parameter-space resolution. Longer integration increases sensitivity. Low-mass x-ray binaries (LMXBs...
2018-02-12T10:00:00+00:00
Author(s): Roberto Pierini, Krzysztof Turzyński, and Andrzej DraganWe investigate a model of a supposedly ideal clock based on the decay rate of a charged particle in circular motion in a constant magnetic field. We show that the time measured by an ideal clock depends on the acceleration. However, the effect becomes visible at an order of magnitude of $1{0}^{28}\t...
2018-02-12T10:00:00+00:00
Author(s): Wenting Zhou and Hongwei YuBy generalizing the formalism proposed by Dalibard, Dupont-Roc and Cohen Tannoudji, we study the resonance interatomic energy of two identical atoms coupled to quantum massless scalar fields in a symmetric/antisymmetric entangled state in the Minkowski and cosmic string spacetimes. We find that in b...
2018-02-12T10:00:00+00:00
Author(s): Yu NakayamaOnce we put a quantum field theory on a curved manifold, it is natural to further assume that coupling constants are position-dependent. The position-dependent coupling constants then provide an extra contribution to the Weyl anomaly so that we may attempt to cancel the entire Weyl anomaly on the cu...
2018-02-12T10:00:00+00:00
Author(s): Georgios K. Karananas and Mikhail ShaposhnikovWe derive consistency conditions for the CFT data, which systems with exact but spontaneously broken conformal invariance must satisfy.
2018-02-12T10:00:00+00:00
Author(s): Bertrand Souères and Dimitrios TsimpisWe use the superspace formulation of (massive) IIA supergravity to obtain the explicit form of the dilatino terms, and we find that the quartic-dilatino term is positive. The theory admits a ten-dimensional de Sitter solution, obtained by assuming a nonvanishing quartic-dilatino condensate which gen...
2018-02-09T10:00:00+00:00
Author(s): Zhi-Yong Zhou and Zhiguang XiaoRecently, we have shown that the $X(3872)$ state can be naturally generated as a bound state by incorporating the hadron interactions into the Godfrey-Isgur quark model using a Friedrichs-like model combined with the quark pair creation model, in which the wave function for the $X(3872)$ as a combin...
2018-02-09T10:00:00+00:00
Author(s): Nesreen Hasan, Jeremy Green, Stefan Meinel, Michael Engelhardt, Stefan Krieg, John Negele, Andrew Pochinsky, and Sergey SyritsynWe describe a procedure for extracting momentum derivatives of nucleon matrix elements on the lattice directly at ${Q}^{2}=0$. This is based on the Rome method for computing momentum derivatives of quark propagators. We apply this procedure to extract the nucleon isovector magnetic moment and charge...
2018-02-09T10:00:00+00:00
Author(s): Stephen P. MartinIn supersymmetric models with scalar sequestering, superconformal strong dynamics in the hidden sector suppresses the low-energy couplings of mass dimension 2, compared to the squares of the dimension-1 parameters. Taking into account restrictions on the anomalous dimensions in superconformal theori...
2018-02-09T10:00:00+00:00
Author(s): Dinesh Kumar, Jyoti Saini, Shireen Gangal, and Sanjeeda Bharati DasWe perform a model independent analysis of new physics in ${B}_{s}^{*}→{μ}^{+}{μ}^{−}$ decay. We intend to identify new physics operator(s) which can provide large enhancement in the branching ratio of ${B}_{s}^{*}→{μ}^{+}{μ}^{−}$ above its standard model prediction. For this, we consider new physic...
2018-02-09T10:00:00+00:00
Author(s): Andreas Crivellin, Julian Heeck, and Dario MüllerWe investigate the possible size of $h→bs$ in two-Higgs-doublet models with generic Yukawa couplings. Even though the corresponding rates are in general expected to be small due to the indirect constraints from ${B}_{s}→{μ}^{+}{μ}^{−}$ and ${B}_{s}–{\overline{B}}_{s}$ mixing, we find regions in para...
2018-02-09T10:00:00+00:00
Author(s): C. Adam, D. Foster, S. Krusch, and A. WereszczynskiTwo recently found coupled Bogomol’nyi-Prasad-Sommerfield (BPS) submodels of the Skyrme model are further analyzed. First, we provide a geometrical formulation of the submodels in terms of the eigenvalues of the strain tensor. Second, we study their thermodynamical properties and show that the mean-...
2018-02-09T10:00:00+00:00
Author(s): Dukjae Jang, Motohiko Kusakabe, and Myung-Ki CheounBy assuming the existence of extra-dimensional sterile neutrinos in the big bang nucleosynthesis (BBN) epoch, we investigate the sterile neutrino (${ν}_{\mathrm{s}}$) effects on the BBN and constrain some parameters associated with the ${ν}_{\mathrm{s}}$ properties. First, for the cosmic expansion r...