An effective Fourier nuclear shape parametrization, which describes well the most relevant degrees of freedom on the way to fission is used to construct a three-dimensional collective model. The potential energy surface is evaluated within the macroscopic-microscopic approach based on the Lublin-Str...

[Phys. Rev. C 101, 064602] Published Tue Jun 02, 2020

]]>Strange particles and hyperfragments in collisions of antiprotons and protons on nuclei have been investigated systematically within a microscopic transport model. The hyperons are produced from the annihilation in antibaryon-baryon collisions and the strangeness exchange process in antiproton induc...

[Phys. Rev. C 101, 064601] Published Mon Jun 01, 2020

]]>We investigate $\varphi $-meson electroproduction off the proton target, i.e., ${\gamma}^{*}p\to \varphi p$, by employing a tree-level effective Lagrangian approach in the kinematical ranges of ${Q}^{2}=(0\u20134){\mathrm{GeV}}^{2}$, $W=(2\u20135)$ GeV, and $\left|t\right|\le 2\phantom{\rule{0.16em}{0ex}}{\mathrm{GeV}}^{2}$. In addition to the universally accepted Pomeron exchange, we consider various meson exchanges ...

[Phys. Rev. C 101, 065201] Published Mon Jun 01, 2020

]]>We investigate the sensitivity of the nonexclusive nucleon induced deuteron breakup reaction to the three-nucleon interaction and distributions of three-nucleon force effects in inclusive spectra. To this end we solve the three-nucleon Faddeev equation at a number of incoming nucleon laboratory ener...

[Phys. Rev. C 101, 054002] Published Thu May 28, 2020

]]>Magnetic-field effects on free nucleons are studied in peripheral collisions of ${}^{197}\mathrm{Au}+{}^{197}\mathrm{Au}$ at energies ranging from 600 to 1500 MeV/nucleon by utilizing an isospin-dependent quantum molecular-dynamics (IQMD) model. With the help of angular distributions and two-particle angular correlators, the mag...

[Phys. Rev. C 101, 054610] Published Thu May 28, 2020

]]>**Background:** Neutrino-driven ejecta in core collapse supernovae (CCSNe) offer an interesting astrophysical scenario where lighter heavy elements between Sr and Ag can be synthesized. Previous studies emphasized the important role that $\left(\alpha ,n\right)$ reactions play in the production of these elements, particul...

[Phys. Rev. C 101, 055807] Published Thu May 28, 2020

]]>Nuclear level densities in ${}^{94,96,98}\mathrm{Mo}$ and ${}^{160,162,164}\mathrm{Dy}$ isotopes are calculated using the single-particle spectrum obtained with the Woods-Saxon potential. The level-density parameters, spin cut-off factors, and moments of inertia are studied. Using the available experimental data at low excitation ...

[Phys. Rev. C 101, 054315] Published Wed May 27, 2020

]]>In neutron star matter, there exist ${}^{1}S_{0}$ superfluids in lower density in the crust while ${}^{3}P_{2}$ superfluids are believed to exist at higher density deep inside the core. In the latter, depending on the temperature and magnetic field, either the uniaxial nematic phase, the ${\mathrm{D}}_{2}$-biaxial nematic phase, or th...

[Phys. Rev. C 101, 055806] Published Wed May 27, 2020

]]>[Phys. Rev. C 101, 059903] Published Wed May 27, 2020

]]>We study breakup of the deuteron induced by neutrinos in the neutral $\nu d\to \nu np$, $\overline{\nu}d\to \overline{\nu}np$ and the charged $\overline{\nu}d\to {e}^{+}nn$, $\nu d\to {e}^{-}pp$ processes. Pionless effective field theory with dibaryon fields is used to calculate the total cross sections for neutrino energies ${E}_{\nu}$ from threshold to 20 MeV. Amplitudes are expa...

[Phys. Rev. C 101, 054001] Published Tue May 26, 2020

]]>Excited states in ${}^{174}\mathrm{Re}$ have been populated in fusion-evaporation reactions at the Australian National University, and $\gamma $-ray spectroscopy has been used to determine the level structure and to deduce the underlying nucleon configurations. The half-life of the bandhead of the ${K}^{\pi}={8}^{-}$ band has been measu...

[Phys. Rev. C 101, 054314] Published Tue May 26, 2020

]]>Static and dynamical aspects of nuclear systems are described through an extended time-dependent mean-field approach. The foundations of the formalism are presented, with highlights on the estimation of average values and their corresponding dispersions. In contrast to semiclassical transport models...

[Phys. Rev. C 101, 054608] Published Tue May 26, 2020

]]>**Background:** Breakup reactions are often used to probe the nuclear structure of halo nuclei. The eikonal model diverges for Coulomb breakup since it relies on the adiabatic approximation. To correct this weakness, a Coulomb-corrected eikonal method (CCE) using the Coulomb first-order-perturbation app...

[Phys. Rev. C 101, 054609] Published Tue May 26, 2020

]]>This work presents the until now most precise measurement of the angular correlation coefficient $a$ between the momenta of the electron and the electron-antineutrino in free neutron decay. The coefficient $a$ is inferred from a detailed analysis of the integral proton recoil spectrum measured with the $a$SPECT setup, a MAC-E-Filter type spectrometer with $4\pi $ acceptance. The result can be used to determine the axial-vector coupling constant ${g}_{A}$ in the weak interaction and shows a tantalizing disagreement with recent measurements of ${g}_{A}$ via the $\beta $-decay asymmetry in neutron decay.

[Phys. Rev. C 101, 055506] Published Tue May 26, 2020

]]>The hyperfine splitting of the $5g\to 4f$ transitions in muonic ${}^{185,187}\mathrm{Re}$ has been measured using high resolution high purity germanium detectors and compared to state-of-the-art atomic theoretical predictions. The spectroscopic quadrupole moment has been extracted using modern fitting procedures and com...

[Phys. Rev. C 101, 054313] Published Fri May 22, 2020

]]>We analyze magnetic and axial two-nucleon contact terms in a combined large-${N}_{c}$ and pionless effective field theory expansion. These terms play important roles in correctly describing, e.g., the low-energy cross section of radiative neutron capture and the deuteron magnetic moment. We show that the l...

[Phys. Rev. C 101, 055505] Published Fri May 22, 2020

]]>The radionuclide ${}^{22}\mathrm{Na}$ is a target of $\gamma $-ray astronomy searches, predicted to be produced during thermonuclear runaways driving classical novae. The ${}^{22}\mathrm{Na}(p,\gamma )\phantom{\rule{0.16em}{0ex}}{}^{23}\mathrm{Mg}$ reaction is the main destruction channel of ${}^{22}\mathrm{Na}$ during a nova, hence, its rate is needed to accurately predict the ${}^{22}\mathrm{Na}$ yield. However, ex...

[Phys. Rev. C 101, 052802(R)] Published Tue May 19, 2020

]]>**Background:** Neutron-rich nuclei in the mass region around $A=160$ have been and will continue to be of interest for the study of nuclear structure because of the rapid onset of deformation between 88 and 90 neutrons. The observation of detailed changes in nuclear structures within this mass region has...

[Phys. Rev. C 101, 054312] Published Tue May 19, 2020

]]>We construct the equation of state for high-density neutron star matter at zero temperature using the two-flavor Nambu–Jona-Lasinio (NJL) model as an effective theory of QCD. We build nuclear matter, quark matter, and the mixed phases from the same NJL Lagrangian, which has been used to model free a...

[Phys. Rev. C 101, 055204] Published Tue May 19, 2020

]]>**Background:** ${}^{40}\mathrm{K}$ plays a significant role in the radiogenic heating of Earth-like exoplanets, which can affect the development of a habitable environment on their surfaces. The initial amount of ${}^{40}\mathrm{K}$ in the interior of these planets depends on the composition of the interstellar clouds from which they...

[Phys. Rev. C 101, 055805] Published Tue May 19, 2020

]]>The $\beta $ decay of ${}^{207}\mathrm{Hg}$ into the single-proton-hole nucleus ${}^{207}\mathrm{Tl}$ has been studied through $\gamma $-ray spectroscopy at the ISOLDE Decay Station (IDS) with the aim of identifying states resulting from coupling of the $\pi {s}_{1/2}^{-1}$, $\pi {d}_{3/2}^{-1}$, and $\pi {h}_{11/2}^{-1}$ shell model orbitals to the collective octupole vibration. Twe...

[Phys. Rev. C 101, 054311] Published Mon May 18, 2020

]]>We have calculated a complete set of primary fission fragment mass yields, $Y\left(A\right)$, for heavy nuclei across the chart of nuclides, including those of particular relevance to the rapid neutron capture process ($r$ process) of nucleosynthesis. We assume that the nuclear shape dynamics are strongly damped, ...

[Phys. Rev. C 101, 054607] Published Mon May 18, 2020

]]>The kaonic system $NN\overline{K}$ is studied based on the configuration space Faddeev equations. We consider two models associated with isospin “natural” basis and isospin “charge” basis. One basis is related to another by a unitary transformation. We show that the “particle representation” for $NN\overline{K}({s}_{NN}=0)$ sys...

[Phys. Rev. C 101, 055203] Published Mon May 18, 2020

]]>**Background:** Nuclear pasta matter, emerging due to the competition between the long-range Coulomb force and the short-range strong force, is believed to be present in astrophysical scenarios, such as neutron stars and core-collapse supernovae. Its structure can have a high impact, e.g., on neutrino t...

[Phys. Rev. C 101, 055804] Published Mon May 18, 2020

]]>[Phys. Rev. C 101, 059902] Published Mon May 18, 2020

]]>The $\alpha $ decays of exotic $N=125$, 126, and 127 isotones, including two new isotopes ${}^{219}\mathrm{Np}$ [Phys. Lett. B **777**, 212 (2018)] and ${}^{220}\mathrm{Np}$ [Phys. Rev. Lett. **122**, 192503 (2019)], are studied by using the improved Buck-Merchant-Perez cluster model with the charge-dependent $\alpha $-preformation factors. The experimenta...

[Phys. Rev. C 101, 054310] Published Fri May 15, 2020

]]>The role of the short-range part (repulsive core) of the proton-neutron ($pn$) potential in deuteron elastic breakup processes is investigated. A simplified one-range Gaussian potential and the Argonne $\text{V4}{}^{\prime}$ ($\text{AV4}{}^{\prime}$) central potential are adopted in the continuum-discretized coupled-channels (CDCC) method...

[Phys. Rev. C 101, 054606] Published Fri May 15, 2020

]]>Detailed knowledge of the hadronic spectrum is still an open question, which has phenomenological consequences on the study of heavy-ion collisions. A previous lattice QCD study concluded that additional strange resonances are missing in the currently tabulated lists provided by the Particle Data Gr...

[Phys. Rev. C 101, 054905] Published Fri May 15, 2020

]]>We consider the elastic constants of phases with nonspherical nuclei, so-called pasta phases, predicted to occur in the inner crust of a neutron star. First, we treat perfectly ordered phases and give numerical estimates for lasagna and spaghetti when the pasta elements are spatially uniform; the re...

[Phys. Rev. C 101, 055802] Published Fri May 15, 2020

]]>Uncertainties in nuclear models have a major impact on simulations that aim at understanding the origin of heavy elements in the universe through the rapid neutron capture process ($r$ process) of nucleosynthesis. Within the framework of the nuclear density functional theory, we use results of Bayesia...

[Phys. Rev. C 101, 055803] Published Fri May 15, 2020

]]>The energy spectrum of two short-range interacting particles in a harmonic potential trap has previously been related to free-space scattering phase shifts. But the existing formula for systems with a nonzero interaction range is exact only in the limit of an infinitely shallow trap. Here I provide ...

[Phys. Rev. C 101, 051602(R)] Published Thu May 14, 2020

]]>Reactor neutrino experiments have seen major improvements in precision in recent years. With the experimental uncertainties becoming lower than those from theory, carefully considering all sources of ${\overline{\nu}}_{e}$ is important when making theoretical predictions. One source of ${\overline{\nu}}_{e}$ that is often neglected aris...

[Phys. Rev. C 101, 054605] Published Thu May 14, 2020

]]>The half-life of ${}^{15}\mathrm{O}$ was measured using the $\beta $-Counting Station at the University of Notre Dame's Nuclear Science Laboratory. Our new result, ${t}_{1/2}=122.308\left(49\right)$ s, is the most precise determination to date for ${}^{15}\mathrm{O}$, and improves the world average by a factor of 4, yielding ${t}_{1/2}^{\text{world}}=122.27\left(6\right)$ s. This mo...

[Phys. Rev. C 101, 055504] Published Thu May 14, 2020

]]>The ${}^{7}\mathrm{Li}(\gamma ,t){}^{4}\mathrm{He}$ ground state cross section was measured for the first time using monoenergetic $\gamma $ rays with energies between 4.4 and 10 MeV at the High Intensity Gamma-ray Source. The reaction is important for the primordial Li problem and for testing our understanding of the mirror $\alpha $-capture reactio...

[Phys. Rev. C 101, 055801] Published Thu May 14, 2020

]]>Anomalous event-by-event fluctuations of the relative yields of neutral (${K}_{s}^{0}$) and charged kaon (${K}^{\pm}$) have been predicted to yield a signature for the formation of disoriented chiral condensate (DCC) in relativistic heavy-ion collisions. In this work, we model the production and decay of DCCs in the c...

[Phys. Rev. C 101, 054904] Published Wed May 13, 2020

]]>We report first measurements of the $\beta $-neutrino angular correlation based on the kinetic-energy shift of protons emitted in parallel or antiparallel directions with respect to the positron in the beta decay of ${}^{32}\mathrm{Ar}$. This proof of principle experiment performed at ISOLDE-CERN provided simultaneous mea...

[Phys. Rev. C 101, 055501] Published Wed May 13, 2020

]]>Recent investigations have emphasized the importance of uncertainty quantification (UQ) in nuclear theory. We carry out UQ for configuration-interaction shell-model calculations in the $1s\text{\u2212}0d$ valence space, investigating the sensitivity of observables to perturbations in the 66 parameters (matrix ele...

[Phys. Rev. C 101, 054308] Published Tue May 12, 2020

]]>The ${1}^{+}$ spectrum of ${}^{130}\mathrm{In}$ populated in the $\beta $ decay of ${}^{130}\mathrm{Cd}$ is studied. The coupling between one- and two-phonon terms in the wave functions of ${1}^{+}$ states is taken into account within the microscopic model based on the Skyrme interaction. The approach enables one to perform the calculations in very la...

[Phys. Rev. C 101, 054309] Published Tue May 12, 2020

]]>Recent data on the production of $D$ mesons and ${\mathrm{\Lambda}}_{c}^{+}$ baryons in heavy ion collisions at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider exhibit a number of striking characteristics such as enhanced yield ratios ${D}_{s}^{+}/{D}^{0}$ and ${\mathrm{\Lambda}}_{c}^{+}/{D}^{0}$ and their transverse momentum dependencies. In ...

[Phys. Rev. C 101, 054903] Published Tue May 12, 2020

]]>We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at ${Q}^{2}=0.082\phantom{\rule{4pt}{0ex}}{\mathrm{GeV}}^{2}$ and $W=2.23$ GeV, above the resonance region. The result ${A}_{\mathrm{Inel}}=-13.5\pm 2.0\left(\mathrm{stat}\right)\pm 3.9\left(\mathrm{syst}\right)$ ppm agrees with theoretical calculations, and helps to validate the modeling o...

[Phys. Rev. C 101, 055503] Published Tue May 12, 2020

]]>The kernel ridge regression (KRR) approach is employed to improve the nuclear mass predictions for the first time, and more importantly, a careful study of the expected predictive power in the neutron-rich region of the nuclear chart is presented, which is crucial for astrophysical simulations of nu...

[Phys. Rev. C 101, 051301(R)] Published Mon May 11, 2020

]]>The interpretation of nuclear observables in the laboratory frame in terms of the intrinsic deformation parameters $\beta $ and $\gamma $ is a classical theme in nuclear structure. Here we use the quadrupole invariants, calculated within the framework of the configuration-interaction shell model, to clarify the me...

[Phys. Rev. C 101, 054307] Published Mon May 11, 2020

]]>Using the Bernard-Kaiser-Lee-Meissner (BKLM) parametrization of the hadronic vertex ${\gamma}^{*}N\to \pi {N}^{\prime}$, with ${\gamma}^{*}$ being a virtual photon, we analyze the restrictions imposed on the form factors (FF) in the limit at which the pion three-momentum and mass go to zero, which is known as the soft-pion limit. We obtai...

[Phys. Rev. C 101, 054604] Published Mon May 11, 2020

]]>Recent experimental results in proton-proton and in proton-nucleus collisions at Large Hadron Collider energies show a strong similarity to those observed in nucleus-nucleus collisions, where the formation of a quark-gluon plasma is expected. We discuss the comparison between small colliding systems...

[Phys. Rev. C 101, 054902] Published Mon May 11, 2020

]]>The octupole deformation $\left({\beta}_{3}\right)$ distorts the spherically symmetric or quadrupole deformed $\left({\beta}_{2}\right)$ nuclei into a pear shape. In the present work, the optimum (or uniquely fixed) orientations obtained for the ‘elongated’ and ‘compact’ fusion configurations of octupole $\left({\beta}_{3}\right)$ deformed nuclei differ significan...

[Phys. Rev. C 101, 051601(R)] Published Fri May 08, 2020

]]>We present a new extraction of the positron-proton and electron-proton elastic-scattering cross sections ratio ${R}_{{e}^{+}{e}^{-}}$ based on a new phenomenological parametrization of the two-photon-exchange (TPE) corrections to electron-proton $\left(ep\right)$ elastic-scattering cross section ${\sigma}_{R}$. We compare our results to sev...

[Phys. Rev. C 101, 055202] Published Thu May 07, 2020

]]>Photoproduction of the $\omega $ meson on the proton has been experimentally studied near the threshold. The total cross sections are determined at incident energies ranging from 1.09 to 1.15 GeV. The 1/2 and 3/2 spin-averaged scattering length ${a}_{\omega p}$ and effective range ${r}_{\omega p}$ between the $\omega $ meson and proton are ...

[Phys. Rev. C 101, 052201(R)] Published Wed May 06, 2020

]]>We present mass excesses (ME) of neutron-rich isotopes of Ar through Fe, obtained via time of flight $B\rho $ mass spectrometry at the National Superconducting Cyclotron Laboratory. Our new results have significantly reduced systematic uncertainties relative to a prior analysis, enabling the first determi...

[Phys. Rev. C 101, 052801(R)] Published Wed May 06, 2020

]]>A process of the decay of the anomalously low-lying nuclear isomer ${}^{229m}\mathrm{Th}(3/{2}^{+},8.28\pm 0.17$ eV) in the thorium anion $\left({\mathrm{Th}}^{-}\right)$ via the internal conversion (IC) channel is studied. We show that the half-life of the nuclear isomer in the $6{d}_{3/2}^{3}7{s}_{1/2}^{2}$ ground state and in the $6{d}_{3/2}^{2}7{s}_{1/2}^{2}7{p}_{1/2}^{1}$ excited state o...

[Phys. Rev. C 101, 054602] Published Wed May 06, 2020

]]>The optical model potential, which reflects an overall feature of the nuclear property and reaction dynamics, has been widely adopted to describe the nucleus-nucleus interaction phenomenologically. Experimentally, knowledge of the optical potential can only be learned in the vicinity of a sensitive ...

[Phys. Rev. C 101, 054603] Published Wed May 06, 2020

]]>The yield ratios of neutron-proton $\left[R\right(n/p\left)\right]$ and ${}^{3}\mathrm{H}\text{\u2212}{}^{3}\mathrm{He}$ $\left[R\right(t/{}^{3}\mathrm{He}\left)\right]$ with reduced rapidity from 0 to 0.5 are simulated for 50 MeV/u ${}^{48,50,52,54,56,58}\mathrm{Ni}+{}^{58}\mathrm{Ni}$ neutron-deficient systems at all reduced impact parameters by using the isospin-dependent quantum molecular dynamics (IQMD) model. Neutron and pro...

[Phys. Rev. C 101, 054601] Published Tue May 05, 2020

]]>In this work, the two-photon-exchange (TPE) effects in $ep\to en{\pi}^{+}$ at small $-t$ are discussed within a hadronic model. Under the pion dominance approximation the TPE contribution to the amplitude can be described by a scalar function in the limit ${m}_{e}\to 0$. The TPE contributions to the amplitude and the unpol...

[Phys. Rev. C 101, 055201] Published Tue May 05, 2020

]]>**Background:** $\alpha $ decay is one of the most important decay modes of atomic nuclei. The half-life of $\alpha $ decay provides valuable information for nuclear structure study. Many theoretical models and empirical formulas have been suggested to describe the half-life of $\alpha $ decay as a function of decay energy (${Q}_{\alpha}$...

[Phys. Rev. C 101, 054304] Published Mon May 04, 2020

]]>The shell-model-like approach (SLAP) based on cranking covariant density functional theory (CDFT) with a separable pairing force is developed. The developed cranking CDFT-SLAP with separable pairing force is applied to investigate the rotational spectra in ${}^{60}\mathrm{Fe}$, including the positive-parity yrast b...

[Phys. Rev. C 101, 054305] Published Mon May 04, 2020

]]>**Background:** The semimicroscopic algebraic quartet model (SAQM) generates the excitation spectra of shell-like quartets, formed by two protons and two neutrons in a well-defined shell configuration. It is based on the SU(3) symmetry, which is valid only in light nuclei. Algebraic quartet models have ...

[Phys. Rev. C 101, 054306] Published Mon May 04, 2020

]]>We resum the nonequilibrium gradient corrections to a single-particle distribution function evolved by the Boltzmann equation in the relaxation time approximation (RTA). We first study a system undergoing Bjorken expansion and show that, for a constant relaxation time, the exact solution of the RTA ...

[Phys. Rev. C 101, 054901] Published Mon May 04, 2020

]]>Recently, we have worked out the axial two-nucleon current operator to leading one-loop order in chiral effective field theory using the method of unitary transformation. Our final expressions, however, differ from the ones derived by the JLab-Pisa group using time-ordered perturbation theory [Phys....

[Phys. Rev. C 101, 055502] Published Mon May 04, 2020

]]>A fully quantal algebraic version of the Bohr-Mottelson unified model is presented with the important property that its quantization is defined by the fully antisymmetric many-nucleon unitary irreps (irreducible representations), which span the many-nucleon Hilbert space of a nucleus. The spatial co...

[Phys. Rev. C 101, 054301] Published Fri May 01, 2020

]]>Isomers in ${}^{66}\mathrm{Ga}$, ${}^{67}\mathrm{Ge}$, and ${}^{69}\mathrm{Ge}$ were recoil implanted into ferromagnetic hosts of iron and gadolinium at $\approx 6$ K, and the hyperfine magnetic fields were determined by time differential perturbed angular distribution (TDPAD) measurements. The hyperfine field strengths at $\approx 6$ K are compared to the results...

[Phys. Rev. C 101, 054302] Published Fri May 01, 2020

]]>High-spin rotational bands in rare-earth Er ($Z=68$), Tm ($Z=69$), and Yb ($Z=70$) isotopes are investigated by three different nuclear models. These are (i) the cranked relativistic Hartree-Bogoliubov (CRHB) approach with approximate particle number projection by means of the Lipkin-Nogami (LN) method, (...

[Phys. Rev. C 101, 054303] Published Fri May 01, 2020

]]>[Phys. Rev. C 101, 059901] Published Fri May 01, 2020

]]>We compute the $\beta $-decay $ft$ values within the frameworks of the energy density functional (EDF) and the interacting boson model (IBM). Based on the constrained mean-field calculation with the Gogny-D1M EDF, the IBM Hamiltonian for an even-even nucleus and essential ingredients of the interacting boson...

[Phys. Rev. C 101, 044318] Published Thu Apr 30, 2020

]]>Spectroscopic strengths for the ${}^{18}{\mathrm{F}}^{g,m}(d,p)\phantom{\rule{0.16em}{0ex}}{}^{19}\mathrm{F}$ reactions to members of the ground-state band in ${}^{19}\mathrm{F}$ are interpreted in the rotational model. The analysis considers two different coupling schemes, namely, the strong and decoupled limits of the particle rotor model to describe the ground and isomeric ...

[Phys. Rev. C 101, 044319] Published Thu Apr 30, 2020

]]>Proton-induced nonelastic cross sections for ${}^{12}\mathrm{C},{}^{27}\mathrm{Al},{}^{56}\mathrm{Fe}$, and ${}^{208}\mathrm{Pb}$ are investigated in a low-energy region below 100 MeV down to nearly 0 MeV based on a framework of an intranuclear cascade (INC) model. We point out that there is a scaling among the calculations including the Coulomb repulsion;...

[Phys. Rev. C 101, 044616] Published Thu Apr 30, 2020

]]>The ALICE Collaboration reports unique data on particle production in Pb-Pb and inelastic $p$-$p$ collisions at the LHC at 5.02 TeV. The measurements range from very peripheral to the most central collisions, and cover particles with transverse momenta from hundreds of MeV/$c$ to 20 GeV/$c$. The precision and breadth of the data provide tight constraints on our understanding of particle production mechanisms in these collisions.

[Phys. Rev. C 101, 044907] Published Wed Apr 29, 2020

]]>The transverse momentum (${p}_{\mathrm{T}}$) differential yields of (anti-)${}^{3}\mathrm{He}$ and (anti-)${}^{3}\mathrm{H}$ measured in $p$-Pb collisions at $\sqrt{{s}_{NN}}$ = 5.02 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The ratios of the ${p}_{\mathrm{T}}$-integrated yields of (anti-)${}^{3}\mathrm{He}$ and (anti-)${}^{3}\mathrm{H}$ to the proton yields are reported, as well as the...

[Phys. Rev. C 101, 044906] Published Tue Apr 28, 2020

]]>An absolute cross section for the radiative capture reaction ${}^{2}\mathrm{H}(p,\gamma ){}^{3}\mathrm{He}$ has been measured at the OMEGA laser facility using inertially confined plasmas. These high-temperature plasmas are created by imploding a fuel-containing capsule using laser ablation, and are advantageous in that they better mi...

[Phys. Rev. C 101, 042802(R)] Published Mon Apr 27, 2020

]]>A self-consistent particle-vibration coupling (PVC) model without diagonal approximation is presented. The diagonal approximation, that neglects completely the interaction between the doorway states, has been removed by taking into account the interaction between the two particle-holes inside the do...

[Phys. Rev. C 101, 044316] Published Mon Apr 27, 2020

]]>The invariant-mass distribution of ${}^{11}\mathrm{O}$ fragments formed in two-neutron-knockout reactions with a ${}^{13}\mathrm{O}$ projectile and ${}^{9}\mathrm{Be}$ target has been further examined. Gating on events where the ${}^{9}\mathrm{C}$ decay fragments produced following $2p$ emission are recoiled transversely in the projectile's frame improves the over...

[Phys. Rev. C 101, 044317] Published Mon Apr 27, 2020

]]>Prompt-fission-neutron spectra from ${}^{239}\mathrm{Pu}$ ($\mathit{n},\phantom{\rule{0.16em}{0ex}}\mathit{f}$) were measured with respect to ${}^{252}\mathrm{Cf}$ spontaneous fission for incident neutron energies from 0.7 to $700\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}$ at the Weapons Neutron Research facility (WNR) of the Los Alamos Neutron Science Center. A newly designed high-efficiency fission chamber was coupl...

[Phys. Rev. C 101, 044614] Published Mon Apr 27, 2020

]]>In the present study, we have investigated the impact of the tensor force on fission paths, in particular the symmetric and asymmetric barriers in ${}^{230}\mathrm{Th},{}^{226}\mathrm{Th},{}^{222}\mathrm{Th}$, and ${}^{216}\mathrm{Th}$ isotopes which display an asymmetric to symmetric fission transition. This analysis has been performed within the HFB appr...

[Phys. Rev. C 101, 044615] Published Mon Apr 27, 2020

]]>**Background:** Reaction rates of radiative capture reactions can play a crucial role in the nucleosynthesis of heavy nuclei in explosive stellar environments. These reaction rates depend strongly on $\gamma $-ray decay widths in the reaction products, which are, for nonresonant capture reactions at high excita...

[Phys. Rev. C 101, 045806] Published Mon Apr 27, 2020

]]>The observation of the gravitational wave signal GW170817, consistent with emission from the inspiral of a binary neutron-star system, provided information on the tidal deformation of the participating stars. The available data may be exploited to constrain the equation of state of dense nuclear mat...

[Phys. Rev. C 101, 045807] Published Mon Apr 27, 2020

]]>We approach the calculation of the nuclear matrix element of the neutrinoless double-$\beta $ decay process, considering the light-neutrino-exchange channel, by way of the realistic shell model. To this end, we start from a realistic nucleon-nucleon potential and then derive the effective shell-model Hamil...

[Phys. Rev. C 101, 044315] Published Fri Apr 24, 2020

]]>Cluster and hypernuclei production in heavy-ion collisions is presently under active experimental and theoretical investigation. Since clusters are weekly bound objects, their production is very sensitive to the dynamical evolution of the system and its interactions. The theoretical description of c...

[Phys. Rev. C 101, 044905] Published Fri Apr 24, 2020

]]>**Background:** In order to study structure of protoneutron stars and those in subsequent cooling stages, it is of great interest to calculate inhomogeneous hot and cold nuclear matter in a variety of phases. The finite-temperature Hartree-Fock-Bogoliubov (FT-HFB) theory is a primary choice for this pur...

[Phys. Rev. C 101, 045804] Published Fri Apr 24, 2020

]]>We compute with lattice field theory the vector and axial static structure factors of the unitary gas for arbitrary temperature above the superfluid transition and for fugacities $0.1<z<1.0$. Using the lattice formulation, we calculate beyond the validity of the virial expansion, a commonly used...

[Phys. Rev. C 101, 045805] Published Fri Apr 24, 2020

]]>The $\beta $-decay half-lives of 55 neutron-rich nuclei ${}^{134-139}\mathrm{Sn}$, ${}^{134-142}\mathrm{Sb}$, ${}^{137-144}\mathrm{Te}$, ${}^{140-146}\mathrm{I}$, ${}^{142-148}\mathrm{Xe}$, ${}^{145-151}\mathrm{Cs}$, ${}^{148-153}\mathrm{Ba}$, and ${}^{151-155}\mathrm{La}$ were measured at the Radioactive Isotope Beam Factory employing the projectile fission fragments of ${}^{238}\mathrm{U}$. The nuclear level structure, which relates to deformati...

[Phys. Rev. C 101, 042801(R)] Published Thu Apr 23, 2020

]]>The collective behavior of hadrons and of electromagnetic radiation in heavy-ion collisions has been widely used to study the properties of the quark-gluon plasma (QGP). Indeed this collectivity, as measured by anisotropic flow coefficients, can be used to constrain the transport properties of QGP. ...

[Phys. Rev. C 101, 044904] Published Thu Apr 23, 2020

]]>Relativistic heavy ion collisions generate nuclear-sized droplets of quark-gluon plasma (QGP) that exhibit nearly inviscid hydrodynamic expansion. Smaller collision systems such as $p+\mathrm{Au},d+\mathrm{Au}$, and ${}^{3}\mathrm{He}+\mathrm{Au}$ at the BNL Relativistic Heavy Ion Collider, as well as $p+\mathrm{Pb}$ and high-multiplicity $p+p$ at the CER...

[Phys. Rev. C 101, 044902] Published Wed Apr 22, 2020

]]>Heavy quarks produced in relativistic heavy-ion collisions are known to be sensitive probes of the hot and dense QCD matter they traverse. In this paper we study how their dynamics is affected by the nature of the bulk evolution of the QCD matter, the initial condition of the system, and the treatme...

[Phys. Rev. C 101, 044903] Published Wed Apr 22, 2020

]]>The historic first detection of the binary neutron star merger GW170817 by the LIGO-Virgo collaboration has set a limit on the gravitational deformability of neutron stars. In contrast, radio observations of PSR $\mathrm{J}0740+6620$ find a very massive neutron star. Tension between the small deformability and...

[Phys. Rev. C 101, 045803] Published Wed Apr 22, 2020

]]>Deexcitation $\gamma $ rays associated with an isomeric state of the ${}^{195}\mathrm{Os}$ were measured for the first time. The half-life of the isomeric state of the neutral atom ${}^{195\mathrm{m}}\mathrm{Os}$ was deduced. The isomers were produced in multinucleon transfer reactions between ${}^{136}\mathrm{Xe}$ beams and ${}^{198}\mathrm{Pt}$ targets, and were collected and ...

[Phys. Rev. C 101, 041305(R)] Published Tue Apr 21, 2020

]]>A new model, based on the BCS approach, is especially designed to describe nuclear phenomena $(A,Z)\to (A,Z\pm 2)$ of double-charge exchange (DCE). Although it was proposed and applied in the particle-hole limit, by one of the authors [Krmpotić, Fizika B **14**, 139 (2005)], it has not yet been applied within t...

[Phys. Rev. C 101, 044314] Published Tue Apr 21, 2020

]]>In this paper, a practical extrapolation method is proposed to predict nuclear masses which are not experimentally accessible. Our new method is based on the Garvey-Kelson mass relations and $\mathrm{J}\stackrel{\u0308}{\mathrm{a}}\mathrm{necke}$ formulas. We demonstrate that the predictive power of this method is very competitive in comparison ...

[Phys. Rev. C 101, 045204] Published Tue Apr 21, 2020

]]>Accurate mass measurements of neutron-rich iron and cobalt isotopes ${}^{67}\mathrm{Fe}$ and ${}^{69,70}\mathrm{Co}$ have been realized with the JYFLTRAP double Penning-trap mass spectrometer. With novel ion-manipulation techniques, the masses of the ${}^{69,70}\mathrm{Co}$ ground states and the $1/{2}^{-}$ isomer in ${}^{69}\mathrm{Co}$ have been extracted for the fir...

[Phys. Rev. C 101, 041304(R)] Published Mon Apr 20, 2020

]]>High spin states of ${}^{37}\mathrm{Ar}$, populated through the ${}^{27}\mathrm{Al}({}^{12}\mathrm{C},np){}^{37}\mathrm{Ar}$ reaction with a 40 MeV ${}^{12}\mathrm{C}$ beam, were studied using the Indian National Gamma Array (INGA) facility. The existing level scheme has been extended up to 10.5 MeV by adding some new levels and transitions. The spins and parities of the ne...

[Phys. Rev. C 101, 044310] Published Mon Apr 20, 2020

]]>Regions of nuclei which exhibit sudden shape changes in a short span of neutron numbers, such as in the A~100 region, are of particular importance for understanding the role of the proton-neutron interaction. This paper explores experimental and theoretical aspects of the Mo isotopes, which comprise the region’s upper boundary, with a focus on axial asymmetry using several complementary observables and suggests a rare candidate for a 2-phonon gamma vibrational excitation for ${}^{110}$Mo.

[Phys. Rev. C 101, 044311] Published Mon Apr 20, 2020

]]>Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the ${}^{155}\mathrm{Gd}(\alpha ,2n){}^{157}\mathrm{Dy}$ and ${}^{148}\mathrm{Nd}({}^{12}\mathrm{C},5n){}^{155}\mathrm{Dy}$ reactions at 25 and 65 MeV, respectively. We report high-$K$ bands, which are conjectured to be the first candidates of a ${K}^{\pi}={2}^{+}\gamma $ vibrational band, buil...

[Phys. Rev. C 101, 044312] Published Mon Apr 20, 2020

]]>Level structures of ${}^{212}\mathrm{Rn}$ have been studied by in-beam $\gamma $-ray spectroscopic methods using the ${}^{209}\mathrm{Bi}({}^{6}\mathrm{Li},3n){}^{212}\mathrm{Rn}$ reaction at beam energies of 28, 30, and 34 MeV. A number of new nonyrast states based on $\pi {h}_{9/2}^{4}$ and $\pi {h}_{9/2}^{3}{f}_{7/2}$ configurations have been identified. A ${3}^{(-)}$ collective state is also propose...

[Phys. Rev. C 101, 044313] Published Mon Apr 20, 2020

]]>Nuclear fusion reactions of D-D are examined in an environment comprised of high density cold fuel embedded in metal lattices in which a small fuel portion is activated by hot neutrons. Such an environment provides for enhanced screening of the Coulomb barrier due to conduction and shell electrons o...

[Phys. Rev. C 101, 044609] Published Mon Apr 20, 2020

]]>$d$-D nuclear fusion events were observed in an electron-screened, deuterated metal lattice by reacting cold deuterons with hot deuterons $\left({d}^{*}\right)$ produced by elastically scattered neutrons originating from bremsstrahlung photodissociation (where “d” and “D” denote ${}^{2}\mathrm{H}$). Exposure of deuterated materials ($\mathrm{E...}$

[Phys. Rev. C 101, 044610] Published Mon Apr 20, 2020

]]>The global polarization of the $\mathrm{\Lambda}$ and $\overline{\mathrm{\Lambda}}$ hyperons is measured for Pb-Pb collisions at $\sqrt{{s}_{NN}}=2.76$ and 5.02 TeV recorded with the ALICE at the Large Hadron Collider (LHC). The results are reported differentially as a function of collision centrality and hyperon's transverse momentum (${p}_{T}$) for the range of...

[Phys. Rev. C 101, 044611] Published Mon Apr 20, 2020

]]>Understanding quasielastic electron and neutrino scattering from nuclei has taken on new urgency with current and planned neutrino oscillation experiments, and with electron scattering experiments measuring specific final states, such as those involving nucleon pairs in “back-to-back” configurations...

[Phys. Rev. C 101, 044612] Published Mon Apr 20, 2020

]]>The quaternary fission of ${}^{244\u2013254}\mathrm{Cf}$ isotope with two $\alpha $ particles as the middle fragments in collinear configuration has been studied by taking the interacting barrier as the sum of Coulomb and nuclear proximity potential. The most favorable quaternary fission path is the one that has a high *Q* value ...

[Phys. Rev. C 101, 044613] Published Mon Apr 20, 2020

]]>**Background:** Neutrinos in the low-energy regime provide a gateway to a wealth of interesting physics. While plenty of literature exists on detailing the calculation and measurement of total reaction strengths, relatively little attention is paid to the measurement and modeling of the final lepton thr...

[Phys. Rev. C 101, 045502] Published Mon Apr 20, 2020

]]>The ${}^{13}\mathrm{C}(\alpha ,n){}^{16}\mathrm{O}$ reaction is the main source of neutrons for the $s$ and $i$ processes in asymptotic giant branch stars and carbon-enhanced metal-poor stars, respectively. The reaction rate over the relevant temperature range from 0.1 to 0.3 GK translates into a center-of-mass energy range of 150 to 540 ...

[Phys. Rev. C 101, 045802] Published Mon Apr 20, 2020

]]>We probe nuclear multipole resonances in the framework of the random-phase approximation by using the interaction obtained from the chiral effective field theory. The three-nucleon force is included in a form of the in-medium two-nucleon interaction, which was derived from the chiral three-nucleon f...

[Phys. Rev. C 101, 044309] Published Fri Apr 17, 2020

]]>We calculate transport coefficients of the quark-gluon plasma (QGP) within the dynamical quasiparticle model (DQPM) by explicitly computing the parton interaction rates as a function of temperature $T$ and baryon chemical potential ${\mu}_{B}$ on the basis of the DQPM couplings and partonic propagators. The la...

[Phys. Rev. C 101, 045203] Published Fri Apr 17, 2020

]]>**Background:** Heavy-ion induced fusion reaction provides the opportunity for synthesizing heavy and superheavy elements in laboratories. In general, the process can be divided in two successive dynamical evolutions. First, a compact dinuclear configuration is formed through capture and then either it ...

[Phys. Rev. C 101, 044607] Published Thu Apr 16, 2020

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