**Background:**The accumulation of experimental data on $\mathrm{\Xi}$ hypernuclei has enabled testing the $\mathrm{\Xi}N$ interactions derived from first-principles lattice QCD simulations through many-body calculations.

**Purpose:**Based on the interactions derived from lattice QCD simulations, we calculate the spectrum of the ${}^{14}\mathrm{N}\dots $

[Phys. Rev. C 109, 044317] Published Fri Apr 12, 2024

]]>A new generation of phenomenological optical potentials requires robust calibration and uncertainty quantification, motivating the use of Bayesian statistical methods. These Bayesian methods usually require calculating observables for thousands or even millions of parameter sets, making fast and acc…

[Phys. Rev. C 109, 044612] Published Thu Apr 11, 2024

]]>This study focuses on estimating the level density parameters for niobium (Nb) using the unscented transform Kalman filter technique. Niobium is widely utilized in accelerator components, particularly in superconducting radiofrequency cavities. To better understand the design of accelerator componen…

[Phys. Rev. C 109, L041603] Published Thu Apr 11, 2024

]]>We present a global nonlocal and dispersive optical model potential for neutron scattering off spherical nuclei with incident energies up to 250 MeV. This optical model is an extension of the nondispersive Perey-Buck potential. The imaginary components are chosen to be energy dependent and the dispe…

[Phys. Rev. C 109, 044611] Published Wed Apr 10, 2024

]]>The invariant yield of electrons from open-heavy-flavor decays for $1<{p}_{T}<8$ GeV/$c$ at midrapidity $\left|y\right|<0.35$ in $\mathrm{Au}+\mathrm{Au}$ collisions at $\sqrt{{s}_{{}_{NN}}}$ = 200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider. A displaced-vertex analysis with the PHENIX silicon-vertex dete…

[Phys. Rev. C 109, 044907] Published Wed Apr 10, 2024

]]>In this work, we systematically calculate the spectrum of hidden-charm pentaquark states $qqqc\overline{c}\phantom{\rule{4pt}{0ex}}(q=u,d)$ in the chiral SU(3) quark model, which has been quite successful in reproducing consistently the energies of octet and decuplet baryon ground states, the binding energy of deuteron, and the nucleon…

[Phys. Rev. C 109, 045204] Published Wed Apr 10, 2024

]]>The compositeness of weakly bound states is discussed using the effective field theory from the viewpoint of the low-energy universality. We introduce a model with coupling of the single-channel scattering to the bare state, and study the compositeness of the bound state by varying the bare state en…

[Phys. Rev. C 109, 045205] Published Wed Apr 10, 2024

]]>A truncated partial-wave analysis is performed for $\eta $ photoproduction off the proton using the polarization observables ${\sigma}_{0},\mathrm{\Sigma},T,E,F$, and $G$. Through this approach, model-independent estimates of the electromagnetic multipole parameters are calculated. Based on these estimates, predictions are made …

[Phys. Rev. C 109, 045206] Published Wed Apr 10, 2024

]]>Efforts toward a precise determination of ${V}_{u\phantom{\rule{0}{0ex}}d}$ and low-energy tests of the electroweak Standard Model have been ongoing for many years. The authors report a comprehensive re-evaluation of the $f\phantom{\rule{0}{0ex}}t$ values in superallowed nuclear $\beta $ decays based on a fully data-driven analysis of the nuclear $\beta $-decay form factor. They utilize isospin relations to connect the nuclear charged weak distribution to the measurable charge distributions. The approach supersedes previous shell-model estimations and allows for a rigorous quantification of theory uncertainties in the phase-space factor, using experimental input rather than nuclear models. The work identifies the need for specific future experimental research to drive further understanding toward a regime of precision that is relevant for weak-interaction physics and thus for physics beyond the Standard Model.

[Phys. Rev. C 109, 045501] Published Wed Apr 10, 2024

]]>Neutron transmission experiments can realize a high-sensitivity search for time-reversal invariance violation (TRIV) in nucleon-nucleon interactions through the same enhancement mechanism observed for large parity violating (PV) effects in neutron-induced compound nuclear processes. A recent polarized beam/polarized target measurement has now quantified the sensitivity for the best-known case, the 0.75 eV $p$-wave resonance in ${}^{139}$La. By determining the spin-dependent nuclear structure factor that relates TRIV and PV cross sections, this work shows that a future search for $P$-odd/$T$-odd interactions in forward transmission of polarized neutrons on polarized ${}^{139}$La would possess high TRIV sensitivity.

[Phys. Rev. C 109, L041602] Published Wed Apr 10, 2024

]]>**Background:** Within the energy density functional (EDF) approach, the use of mean-field wave functions deliberately breaking (some) symmetries of the underlying Hamiltonian is an efficient and widely utilized way to incorporate static correlations. However, the restoration of broken symmetries is eve…

[Phys. Rev. C 109, 044315] Published Tue Apr 09, 2024

]]>The electric dipole transition of the ${3}^{-}$ state at 9.64 MeV of ${}^{12}\mathrm{C}$ to the ${2}^{+}$ state at 4.44 MeV is speculated to play a key role in the triple-$\alpha $ reaction at high temperatures. A theoretical prediction of its transition width is a challenge to nuclear theory because it belongs to a class of isospin-for…

[Phys. Rev. C 109, 044316] Published Tue Apr 09, 2024

]]>We solve the Schrödinger equation for an arbitrary one-dimensional potential energy to calculate the transmission coefficient in the fission channel of compound nucleus reactions. We incorporate the calculated transmission coefficients into the statistical Hauser-Feshbach model calculation for neutr…

[Phys. Rev. C 109, 044610] Published Tue Apr 09, 2024

]]>Recent measurements from ALICE report that “in-jet” nucleons carry a higher probability of forming a deuteron via coalescence than the nucleons from the underlying event (UE). This study makes use of an event shape classifier to separate the “in-jet” deuterons and the deuterons in the UE produced in…

[Phys. Rev. C 109, 044908] Published Tue Apr 09, 2024

]]>Angular distributions of charged particles relative to jet axes are studied in $\sqrt{{s}_{NN}}=200$ GeV Au+Au collisions as a function of the jet orientation with respect to the event plane. This differential study tests the expected path-length dependence of energy loss experienced by a hard-scattered parton as…

[Phys. Rev. C 109, 044909] Published Tue Apr 09, 2024

]]>A search for new neutron-rich isotopes near the $N=60$ isotones ${}^{92}\mathrm{Ge}$ and ${}^{93}\mathrm{As}$ has been performed using a 345 MeV/nucleon ${}^{238}\mathrm{U}$ beam at the RIKEN Nishina Center RI Beam Factory. Fission fragments produced were analyzed and identified in flight using the large-acceptance two-stage separator BigRIPS. We h…

[Phys. Rev. C 109, 044313] Published Mon Apr 08, 2024

]]>Neutrino experiments such as long-baseline oscillation measurements can determine properties of fundamental particles, but the present systematic uncertainties, e.g., in the neutrino-nucleus cross sections, must be significantly reduced. The authors determine the ${}^{16}$O spectral function from an $a\phantom{\rule{0}{0ex}}b$-$i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}o$ calculation with realistic two- and three-body interactions that is benchmarked against earlier ${}^{4}$He results. They then obtain good results in the relativistic regime for quasi-elastic electron scattering as well as for neutrino scattering data from T2K. The predictions for both electron and neutrino scattering identify a particular need for low-energy electron-scattering data on ${}^{16}$O, for which a program is underway at MAMI in Germany. And being able to propagate the theoretical uncertainties to the final cross sections promises improved understanding of the anticipated more precise results from next-generation neutrino experiments.

[Phys. Rev. C 109, 044314] Published Mon Apr 08, 2024

]]>This paper formalizes the use of integral and differential cumulants for measurements of multiparticle event-by-event transverse momentum fluctuations, rapidity fluctuations, as well as net-charge fluctuations. This enables the introduction of multiparticle balance functions, defined based on differ…

[Phys. Rev. C 109, 044904] Published Mon Apr 08, 2024

]]>We explore the implications of the late-stage hadronic rescattering phase on the flow of ${K}^{*0}$. The model calculations are done using a $(3+1)$-dimensional hybrid framework, incorporating both hydrodynamic evolution and hadronic transport that is calibrated to agree with bulk observables including the e…

[Phys. Rev. C 109, 044905] Published Mon Apr 08, 2024

]]>The formation of weakly bound clusters in the hot and dense environment at midrapidity is one of the surprising phenomena observed experimentally in heavy-ion collisions from a low center of mass energy of a few GeV up to an ultrarelativistic energy of several TeV. Three approaches have been advance…

[Phys. Rev. C 109, 044906] Published Mon Apr 08, 2024

]]>The composition of the inner crust of neutron stars is usually studied using phenomenological interactions such as Skyrme energy-density functionals. But most of these functionals do not agree well with *ab initio* calculations of very dilute neutron matter. In this work, we study the inner crust of n…

[Phys. Rev. C 109, 045806] Published Mon Apr 08, 2024

]]>The recent pioneering campaigns conducted by the Lead Radius Experiment (PREX) and the Calcium Radius Experiment (CREX) Collaborations have uncovered major deficiencies in the theoretical description of some fundamental properties of atomic nuclei. Following a recent refinement to the isovector sect…

[Phys. Rev. C 109, 045807] Published Mon Apr 08, 2024

]]>The ${}^{12}\mathrm{C}(\alpha ,\gamma ){}^{16}\mathrm{O}$ reaction substantially influences the abundance ratios of the main isotopes of carbon and oxygen and hence has been regarded as the holy grail in nuclear astrophysics. Its importance lies in the fact that it significantly affects the yield of key elements and that it plays a crucial …

[Phys. Rev. C 109, 045808] Published Mon Apr 08, 2024

]]>The interacting boson model with configuration mixing due to two-particle–two-hole excitations is applied to describe even-even ${}^{148-154}\mathrm{Sm}$ to investigate the cross-shell excitation effects in these nuclei. It is shown from the fitting results to the experimentally known positive-parity level energies…

[Phys. Rev. C 109, 044310] Published Fri Apr 05, 2024

]]>The binding energy of an isotope is a sensitive indicator of the underlying shell structure as it reflects the net energy content of a nucleus. Since magic nuclei are significantly lighter, or more bound, compared to their neighbors, the presence of nucleonic shell structure makes an imprint on nucl…

[Phys. Rev. C 109, 044311] Published Fri Apr 05, 2024

]]>Nuclei around the $N=40$ “island of inversion” exhibit interesting structure features that have been the focus of several experimental and theoretical studies. The present work presents the first complete study of the $\beta $-decay feeding intensity distribution and Gamow-Teller distribution for the $\beta $ decay…

[Phys. Rev. C 109, 044312] Published Fri Apr 05, 2024

]]>Within the Transport Model Evaluation Project (TMEP), we present a detailed study of the performance of different transport models in $\text{Sn}+\text{Sn}$ collisions at $270A\phantom{\rule{4pt}{0ex}}\mathrm{MeV}$, which are representative reactions used to study the equation of state at suprasaturation densities. We put particular emphasis on the pr…

[Phys. Rev. C 109, 044609] Published Fri Apr 05, 2024

]]>The lifetimes of the first excited ${\frac{7}{2}}^{-}$ states in the ${T}_{z}=\pm \frac{3}{2}$ mirror nuclei ${}^{47}\mathrm{Mn}$ and ${}^{47}\mathrm{Ti}$ have been extracted utilizing the $\gamma $-ray line shape method, giving $\tau =687\left(36\right)$ ps and $\tau =331\left(15\right)$ ps respectively. Since these transitions are essentially pure $M1$ transitions, these results allow for a high-precision …

[Phys. Rev. C 109, 044307] Published Thu Apr 04, 2024

]]>The authors extend the proton-neutron finite-amplitude method, an iterative and efficient form of the Skyrme quasiparticle random-phase approximation that needs no diagonalization of the $p\phantom{\rule{0}{0ex}}n$ QRPA matrix, for the coupling of quasiparticles to like-particle phonons. With this approach one can add beyond-QRPA correlations to computations of important nuclear properties such as Gamow-Teller strength and $\beta $-decay rates in deformed nuclei. The results show improved agreement with existing data for several deformed nuclei, a promising step toward a more reliable framework for large-scale $\beta $-decay calculations needed, e.g., for $r$-process modeling.

[Phys. Rev. C 109, 044308] Published Thu Apr 04, 2024

]]>**Background:** A recent inelastic $\alpha $-scattering experiment [P. Adsley *et al.*, Phys. Rev. Lett. **129**, 102701 (2022)] found ${0}^{+}$ resonances in ${}^{24}\mathrm{Mg}$ on and above the ${}^{12}\mathrm{C}+{}^{12}\mathrm{C}$ break-up threshold. It has been conjectured that the states have a ${}^{12}\mathrm{C}+{}^{12}\mathrm{C}$ cluster structure, and play a similar role in accelerating ${}^{\mathrm{\dots}}\mathrm{C}$

[Phys. Rev. C 109, 044309] Published Thu Apr 04, 2024

]]>Extending from previous research where formation and decay analysis was carried out for even mass nuclei, this investigation includes the fusion-fragmentation analysis of odd mass isotopic compound systems, ${}^{165,167}\mathrm{Tm}^{*}$, formed in reactions induced by ${}^{35,37}\mathrm{Cl}$ projectiles carrying energy spanning the C…

[Phys. Rev. C 109, 044607] Published Thu Apr 04, 2024

]]>The ${}^{13}\mathrm{C}+{}^{27}\mathrm{Al}$ reaction (${E}_{\text{lab}}=32$ MeV) has been measured, and the elastic scattering, target excitation, and one-neutron transfer channels have been investigated. A comparison of the data with the results of different theoretical frameworks indicates the necessity of including the effect of the spin-or…

[Phys. Rev. C 109, 044608] Published Thu Apr 04, 2024

]]>We propose an algorithm to detect minijet clusters in high-energy nuclear collisions, by selecting a high-transverse-momentum (${p}_{T}$) particle as a seed and assigning a clustering radius ($R$) in the pseudorapidity and azimuthal-angle space. Our pythia simulations for $p+p$ collisions show that a scheme wi…

[Phys. Rev. C 109, 044903] Published Thu Apr 04, 2024

]]>The production of ${K}^{*}{\left(892\right)}^{\pm}$ meson resonance is measured at midrapidity ($\left|y\right|<0.5$) in $\mathrm{Pb}\text{\u2212}\mathrm{Pb}$ collisions at $\sqrt{{s}_{NN}}=5.02$ TeV using the ALICE detector at the CERN Large Hadron Collider. The resonance is reconstructed via its hadronic decay channel ${K}^{*}{\left(892\right)}^{\pm}\to {K}_{\mathrm{S}}^{0}{\pi}^{\pm}$. The transverse momentum distributions are o…

[Phys. Rev. C 109, 044902] Published Wed Apr 03, 2024

]]>An extension to our previous study on nuclear parton distribution functions (nPDFs) [Kim and Miller, Phys. Rev. C **106**, 055202 (2022)] using light-front holographic quantum chromodynamics (LFHQCD) [Brodsky, de Teramond, Dosch, and Erlich, Phys. Rep. **584**, 1 (2015)] is presented. We apply the effects o…

[Phys. Rev. C 109, 045203] Published Wed Apr 03, 2024

]]>We develop a density-dependent quark mean-field (DDQMF) model to study the properties of nuclear matter and neutron stars, where the coupling strength between $\sigma $ meson and nucleon is generated by the degree of freedom of quarks, while other meson coupling constants are regarded as density-dependent o…

[Phys. Rev. C 109, 045804] Published Wed Apr 03, 2024

]]>An analysis of the slab phase as it is expected in the innermost layer of neutron-star crusts is performed within the Hartree-Fock-Bogoliubov framework. We take the periodicity of the slabs into account using Bloch boundary conditions, in order to well describe the interplay between the band structu…

[Phys. Rev. C 109, 045805] Published Wed Apr 03, 2024

]]>[Phys. Rev. C 109, 049901] Published Wed Apr 03, 2024

]]>**Background:** Large-scale computations of fission properties are an important ingredient for nuclear reaction network calculations simulating rapid neutron-capture process (the $r$ process) nucleosynthesis. Due to the large number of fissioning nuclei potentially contributing to the $r$ process, a microsc…

[Phys. Rev. C 109, 044305] Published Tue Apr 02, 2024

]]>**Background:** When multiple fission modes coexist in a given nucleus, distinct fragment yield distributions appear. Multimodal fission has been observed in a number of fissioning nuclei spanning the nuclear chart, and this phenomenon is expected to affect the nuclear abundances synthesized during the …

[Phys. Rev. C 109, 044306] Published Tue Apr 02, 2024

]]>An extensive dataset of cumulative fission product yields has been generated under a joint collaboration between Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and the Triangle Universities Nuclear Laboratory (TUNL). The energy dependence of the cumulative yiel…

[Phys. Rev. C 109, 044604] Published Tue Apr 02, 2024

]]>We consider quantum tunneling between fusing nuclei in the presence of a harmonically time-varying field. The tunneling rate is calculated using Floquet/Volkov (FV) and Kramers-Henneberger (KH) approaches, which are both compared to a first-principles numerical solution of the Crank-Nicolson (CN) ty…

[Phys. Rev. C 109, 044605] Published Tue Apr 02, 2024

]]>We measured the spin-dependent cross section at a neutron-induced $p$-wave resonance using a polarized epithermal neutron beam and a polarized nuclear target. Our study focuses on the 0.75 eV $p$-wave resonance of ${}^{139}\mathrm{La}+n$, where previous experiments have shown a large enhancement of parity violation. Th…

[Phys. Rev. C 109, 044606] Published Tue Apr 02, 2024

]]>In this work, we have phenomenologically reexamined the $\varepsilon $ dependence of the proton's recoil-polarization ratio $R={\mu}_{p}{G}_{E}/{G}_{M}$ for possible two-photon-exchange (TPE) corrections beyond the one-photon-exchange (OPE) or Born approximation. High-precision Rosenbluth measurements of ${\sigma}_{R}(\varepsilon ,{Q}^{2})$ taken at ${Q}^{2}=2.64$,…

[Phys. Rev. C 109, 045202] Published Tue Apr 02, 2024

]]>The mass of neutron-deficient nuclide ${}^{58}\mathrm{Zn}$ has been directly measured by using $B\rho $-defined isochronous mass spectrometry, resulting in a more precise proton separation energy of ${S}_{p}\left({}^{58}\mathrm{Zn}\right)=2227\left(36\right)$ keV. With this new ${S}_{p}$ value, the thermonuclear rate of the ${}^{57}\mathrm{Cu}(p,\gamma ){}^{58}\mathrm{Zn}$ reaction has been re-evaluated t…

[Phys. Rev. C 109, 045802] Published Tue Apr 02, 2024

]]>We present a many-channel microscopic model that extends the three-cluster model previously formulated by Vasilevsky *et al.* [Nucl. Phys. A **824**, 37 (2009)]. This extended model incorporates multiple three-cluster configurations, which are subsequently reduced to a comprehensive set of binary channels…

[Phys. Rev. C 109, 045803] Published Tue Apr 02, 2024

]]>The reflection asymmetric relativistic mean-field (RASRMF) theory was applied to investigate the static fission properties of ${}^{240}\mathrm{Pu}$. The potential energy curves with different spatial symmetries were obtained, and the calculated fission barrier heights are in good agreement with available experiment…

[Phys. Rev. C 109, 044301] Published Mon Apr 01, 2024

]]>We propose a theory framework to study the isospin-symmetry breaking correction ${\delta}_{\text{C}}$ in superallowed nuclear $\beta $ decays, crucial for the precise determination of $|{V}_{ud}|$. Based on a general assumptions of the isovector dominance in isospin-symmetry breaking interactions, we construct a set of functions ${F}_{{T}_{\dots}}$

[Phys. Rev. C 109, 044302] Published Mon Apr 01, 2024

]]>High-spin states in ${}^{76}\mathrm{As}$ have been observed for the first time by using the ${}^{4}\mathrm{He}+{}^{74}\mathrm{Ge}$ reaction at beam energies of 58.6 and 62.6 MeV. Two positive-parity and three negative-parity bands have been found in ${}^{76}\mathrm{As}$. The two positive-parity bands with $\pi {g}_{9/2}\otimes \nu {g}_{9/2}$ configurations are tentatively interpreted …

[Phys. Rev. C 109, 044303] Published Mon Apr 01, 2024

]]>A semiclassical approach combined with adiabatic approximation is applied to the particle+triaxial rotor (PTR) model in order to derive the collective potential and mass parameters of a collective Hamiltonian (CH) that depends only on the total angular momentum for the wobbling motion. The CH approx…

[Phys. Rev. C 109, 044304] Published Mon Apr 01, 2024

]]>For the neutron-induced fission of nuclei ${}^{235,238}\mathrm{U}$, the evolution of the shape of fission-fragment neutron multiplicity distribution with increasing excitation energy is explored within the improved scission-point model. For a wide range of incident neutron energies, the dependence of an average num…

[Phys. Rev. C 109, 044601] Published Mon Apr 01, 2024

]]>New measurements of photofission and photoneutron reactions on ${}^{238}\mathrm{U}$ and ${}^{232}\mathrm{Th}$ in the giant dipole resonance (GDR) energy region were performed at the laser Compton-scattering $\gamma $-ray source of the NewSUBARU synchrotron radiation facility using a high-and-flat efficiency moderated ${}^{3}\mathrm{He}$ detection array. …

[Phys. Rev. C 109, 044602] Published Mon Apr 01, 2024

]]>This paper represents a continuation of our investigation into the limitations on total, proton, and neutron particle number densities, as well as the asymmetry of proton and neutron density distributions achievable in central heavy-ion collisions. We explore these aspects at low and medium energies…

[Phys. Rev. C 109, 044603] Published Mon Apr 01, 2024

]]>A study of prompt ${\mathrm{\Xi}}_{c}^{+}$ production in proton-lead collisions is performed with the LHCb experiment at a center-of-mass energy per nucleon pair of 8.16 $\text{TeV}$ in 2016 in $p\mathrm{Pb}$ and $\mathrm{Pb}p$ collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 $\phantom{\rule{0.16em}{0ex}}{\text{nb}}^{-1}$, respectively. The ${\mathrm{\Xi}}_{c}^{+}$ production cro…

[Phys. Rev. C 109, 044901] Published Mon Apr 01, 2024

]]>We present a detailed discussion of the thermodynamics of the parity-doublet nucleon-meson model within a mean-field theory, at finite temperature and baryon-chemical potential, with special emphasis on the chiral transition at large baryon densities and vanishing temperature. We consider isospin-sy…

[Phys. Rev. C 109, 045201] Published Mon Apr 01, 2024

]]>We study how the nuclear symmetry energy slope ($L$) can affect the hadron-quark phase transition and neutron star properties. We show that the main physical quantities as the critical chemical potential and pressure are strongly influenced by the symmetry energy slope. In extreme cases, the total amo…

[Phys. Rev. C 109, 045801] Published Mon Apr 01, 2024

]]>High-resolution experimental fusion excitation functions for ${}^{16,17,18}$O + ${}^{12}$C reveal a remarkable irregular behavior rooted in the structure of both the colliding nuclei and the quasimolecular composite system. Using a parameter-free time-dependent Hartree-Fock model, the authors assess the influence of the angular-momentum-dependent fusion barriers on fusion. They find that barrier penetrabilities taken directly from a density-constrained calculation provide a significantly improved description of the experimental data. The results expose the remaining deviations between the mean-field predictions and experimental fusion cross sections, and suggest this approach to garner insight into the impact of nuclear structure effects on fusion reactions.

[Phys. Rev. C 109, L041601] Published Mon Apr 01, 2024

]]>We present new maximally local two-nucleon interactions derived in $\mathrm{\Delta}$-less chiral effective field theory up to next-to-next-to-next-to-leading order (${\mathrm{N}}^{3}\mathrm{LO}$), which include all contact and pion-exchange contributions to the nuclear Hamiltonian up to this order. Our interactions are fit to nucleon-nucle…

[Phys. Rev. C 109, 034005] Published Fri Mar 29, 2024

]]>A new theoretical analysis connects the results of high-energy particle experiments at the Large Hadron Collider with three-proton correlations inside nuclei.

[Phys. Rev. C 109, 034006] Published Fri Mar 29, 2024

]]>Recent years have witnessed an expanding interest in experimental studies of $\beta $ electrons (electrons emitted in ${\beta}^{-}$ decay transitions) and their energy distributions, the so-called $\beta $-electron spectra. These experiments have been focused mainly on $\beta $ transitions with electron spectra sensitive to the ef…

[Phys. Rev. C 109, 034321] Published Fri Mar 29, 2024

]]>$\alpha +\alpha $ scattering has a long history since the first experiment by Rutherford and Chadwick in 1927 and has been studied thoroughly experimentally and theoretically. However, $\alpha +\alpha $ scattering has never been paid attention from the viewpoint of refractive scattering. I have successfully analyzed the experi…

[Phys. Rev. C 109, 034618] Published Fri Mar 29, 2024

]]>A linear Boltzmann transport (LBT) Monte Carlo model has been developed to describe jet propagation and interaction with the quark-gluon plasma (QGP) in relativistic heavy-ion collisions. A complete set of elastic-scattering processes and medium-induced gluon emissions based on the higher-twist form…

[Phys. Rev. C 109, 034919] Published Fri Mar 29, 2024

]]>We have employed both unpaired (cranked Nilsson-Strutinsky) and paired (cranked Nilsson-Strutinsky-Bogoliubov) cranked Nilsson-Strutinsky calculations to explore the properties of observed and potential isomers within the shape-transitional osmium $(Z=76)$ isotopes and $N=116$ isotones. Our analyses rev…

[Phys. Rev. C 109, 034320] Published Thu Mar 28, 2024

]]>The astrophysical origin for the chemical elements between the first and second $r$-process peaks is a matter of intense debate, with a number of nucleosynthesis processes at explosive stellar environments possibly contributing to their production. Modeling neutron-capture processes that would produce these elements requires reliable data on the trends of neutron separation energies of neutron-rich isotopes which are highly unstable and not readily accessible by experiment. This work describes the first application of an experimental technique, time-of-flight-magnetic-rigidity (ToF-B$\rho $), that is well-suited to measure masses of nuclei with very short half-lives in beams with relatively low intensities. The two-neutron separation energy deduced from the measured masses exhibits a smooth trend consistent with theoretical predictions within the range of experimental uncertainty, indicating that there is no sudden shape transition in these isotopes as hinted at by previous data. The successful application of the ToF-B$\rho $ technique to isotopes with $Z>28$ at the NSCL S800 spectrograph gives hope for a comprehensive program of mass measurements for isotopes relevant to $r$-process models with the same device at FRIB.

[Phys. Rev. C 109, 035806] Published Thu Mar 28, 2024

]]>Neural networks have been proposed as efficient numerical wave function *Ansätze*, which can be used to variationally search a wide range of functional forms for ground-state solutions. These neural network methods are also advantageous in that more variational parameters and system degrees of freedom…

[Phys. Rev. C 109, 034004] Published Wed Mar 27, 2024

]]>The low-energy structure and $\beta $-decay properties of the neutron-rich even-mass nuclei near the neutron number $N=60$ that are experimentally of much interest are investigated within the framework of the nuclear density functional theory and the interacting boson-fermion-fermion model. By using the resu…

[Phys. Rev. C 109, 034319] Published Wed Mar 27, 2024

]]>We incorporate a microscopic relativistic nuclear potential obtained from the recently developed relativistic R3Y $NN$ potential in the coupled-channels code ccfull to study fusion dynamics. The R3Y $NN$ potential and the densities of interacting nuclei are obtained for the relativistic mean-field appro…

[Phys. Rev. C 109, 034617] Published Wed Mar 27, 2024

]]>Ultrarelativistic heavy-ion collisions will first realize many nucleon-nucleon scatterings, happening instantaneously and therefore necessarily in parallel, due to the short collision time. An appropriate quantum mechanical tool to treat that problem is S-matrix theory, and it has been known for a l…

[Phys. Rev. C 109, 034918] Published Wed Mar 27, 2024

]]>Upcoming studies at the CERN Large Hadron Collider (LHC) aim to extend the rapidity coverage in measurements of the production cross section of antinuclei $\overline{d}$ and $\overline{{}^{3}\mathrm{He}}$. I illustrate the impact of such studies on cosmic ray (CR) flux predictions, important, in turn, for the interpretation of results f…

[Phys. Rev. C 109, L031904] Published Wed Mar 27, 2024

]]>The Green's function Monte Carlo (GFMC) method provides accurate solutions to the nuclear many-body problem and predicts properties of light nuclei starting from realistic two- and three-body interactions. Controlling the GFMC fermion sign problem is crucial, as the signal-to-noise ratio decreases e…

[Phys. Rev. C 109, 034317] Published Mon Mar 25, 2024

]]>The binding energy or mass is one of the most fundamental properties of an atomic nucleus. Precise binding energies are vital inputs for many nuclear physics and nuclear astrophysics studies. However, due to the complexity of atomic nuclei and the nonperturbative strong interaction, up to now, no co…

[Phys. Rev. C 109, 034318] Published Mon Mar 25, 2024

]]>There must be electromagnetic fields created during high-energy heavy-ion collisions. As the quark-gluon plasma (QGP) starts to evolve hydrodynamically, although these fields may become weak compared to the energy scales of the strong interaction, they are potentially important to some electromagnet…

[Phys. Rev. C 109, 034917] Published Mon Mar 25, 2024

]]>Neutrino mass is a key parameter in nuclear and particle physics and in cosmology. The Project 8 Collaboration developed an innovative method with potential to improve the current mass limits by more than an order of magnitude. Announced in a paper published last September (PRL 131, 102502; see also the Synopsis at https://physics.aps.org/articles/v16/s121), the method measures the frequency of radiation from tritium $\beta $-decay electrons spiraling in a magnetic field. In the current paper the authors provide the details of this unique measurement technique including the hardware and the role of simulations and precision spectroscopy that enabled their new direct mass measurement. This first, small-volume demonstration, along with the precision reached, shows a clear path to improve in future experiments on the conservative upper limit for the neutrino mass obtained here.

[Phys. Rev. C 109, 035503] Published Mon Mar 25, 2024

]]>We examine in detail two alternative descriptions of a system of $\alpha $ particles interacting via local interactions of different character, highlighting the fact that a faithful microscopic description of such systems demands a consistent treatment of both short- and long-range correlations. In preparat…

[Phys. Rev. C 109, 034315] Published Thu Mar 21, 2024

]]>**Background:** In the framework of nuclear energy density functional (EDF) methods, many nuclear phenomena can be related to the deformation of intrinsic states. Their accurate modeling relies on the correct description of the change of nuclear binding energy with deformation. The two most important co…

[Phys. Rev. C 109, 034316] Published Thu Mar 21, 2024

]]>**Background**: Multinucleon transfer (MNT) reactions are considered now as a possible tool to produce new isotopes of heavy and superheavy elements.

**Purpose**: Experimental study of MNT fragments formed in the ${}^{136}\mathrm{Xe}+{}^{238}\mathrm{U}$ reaction at ${}^{136}\mathrm{Xe}$ beam energy of 1.11 GeV and comparison with theoretical calculatio…

[Phys. Rev. C 109, 034616] Published Thu Mar 21, 2024

]]>The isotopes ${}^{261,262}\mathrm{Bh}$ were reinvestigated by using the cold fusion reaction ${}^{54}\mathrm{Cr}+{}^{209}\mathrm{Bi}$. The evaporation residues were separated by the gas-filled recoil separator SHANS2 (Spectrometer for Heavy Atoms and Nuclear Structure-2) and identified by means of the recoil-$\alpha $-correlation method. The $\alpha $-decay pr…

[Phys. Rev. C 109, 034314] Published Wed Mar 20, 2024

]]>We suggest that the angular momentum in fission fragments is generated by statistical excitation at scission. The magnitude of the angular momentum is determined by excitation energy and shell structure in the level density. Treating the prescission shape evolution as a diffusive process, implemente…

[Phys. Rev. C 109, 034615] Published Wed Mar 20, 2024

]]>We investigate the transverse momentum distribution (TMD) statistics from three different theoretical approaches. In particular, we explore the framework used for string models, wherein the particle production is given by the Schwinger mechanism. The thermal distribution arises from the Gaussian flu…

[Phys. Rev. C 109, 034915] Published Wed Mar 20, 2024

]]>We compute the muon capture on deuteron in the doublet hyperfine state for a variety of nuclear interactions and consistent nuclear currents. Our analysis includes a detailed examination of the theoretical uncertainties coming from different sources: the single-nucleon axial form factor, the truncat…

[Phys. Rev. C 109, 035502] Published Wed Mar 20, 2024

]]>A measurement of the ${}^{94}\mathrm{Mo}$($p,\gamma $)${}^{95}\mathrm{Tc}$ cross section was performed. The cross section was measured in the energy range ${E}_{c.m.}=1.5\u20134.5$ MeV, spanning essentially the entirety of the Gamow window relevant to the astrophysical $\gamma \phantom{\rule{0.28em}{0ex}}\mathrm{process}$. The $\gamma $-summing technique was used to analyze the data. At lower energies …

[Phys. Rev. C 109, 035805] Published Wed Mar 20, 2024

]]>The shell closure at $N=32$ has been investigated by a first spectroscopy of the $N=31$ nucleus ${}^{49}\mathrm{Ar}$ at the Radioactive Isotope Beam Factory. Using the ${}^{50}\mathrm{Ar}(p,pn)$ reaction channel in inverse kinematics, ${}^{50}\mathrm{Ar}$ projectiles at 217 MeV/nucleon impinged on a 150 mm long liquid hydrogen target, part of the MIN…

[Phys. Rev. C 109, 034312] Published Tue Mar 19, 2024

]]>High-spin states of ${}^{91}\mathrm{Nb}$ have been investigated using the heavy-ion fusion-evaporation reaction ${}^{65}\mathrm{Cu}({}^{30}\mathrm{Si}$, $2p2n)$ at a beam energy of 120 MeV. States of ${}^{91}\mathrm{Nb}$ up to excitation energy $\approx 12$ MeV and spin $41/2\phantom{\rule{4pt}{0ex}}\hslash $ have been observed with the addition of thirteen new $\gamma $-ray transitions to the proposed level sch…

[Phys. Rev. C 109, 034313] Published Tue Mar 19, 2024

]]>Shear viscosity becomes anisotropic in a rotating medium. It is discovered here that for rotating thermalized quantum systems such as those created in relativistic heavy-ion collisions, the coefficient of shear viscosity breaks up into five independent components. Similar phenomena were also discove…

[Phys. Rev. C 109, 034913] Published Tue Mar 19, 2024

]]>Rotating quarks and hadronic systems, produced in peripheral heavy ion collisions, can experience Coriolis force and other forces due to rotational motion. Considering only the effect of Coriolis force, we have calculated the electrical conductivity for nonrelativistic rotating matter using the rela…

[Phys. Rev. C 109, 034914] Published Tue Mar 19, 2024

]]>[Phys. Rev. C 109, 039903] Published Tue Mar 19, 2024

]]>The radioactive decay properties of ${}^{242}\mathrm{Es}$ were studied at the gas-filled recoil separator TASCA. This isotope was produced in the $3n$ evaporation channel of the fusion reaction of ${}^{48}\mathrm{Ca}+{}^{197}\mathrm{Au}$. A half-life of 16.9(8) s was deduced from 662 $\alpha $ decays of ${}^{242}\mathrm{Es}$, resulting in an $\alpha $-decay branching of 41(3)%.…

[Phys. Rev. C 109, 034311] Published Mon Mar 18, 2024

]]>We have studied the shear and bulk viscosities of asymmetric nuclear matter in the mechanical and chemical instability region based on isospin-dependent Boltzmann-Uehling-Uhlenbeck transport simulations in a box system. The Green-Kubo method is used to calculate these viscosities with a prepared dyn…

[Phys. Rev. C 109, 034614] Published Mon Mar 18, 2024

]]>The production mechanisms of charmonium states in both hadronic and heavy-ion collisions hold great significance for investigating the hot and dense QCD matter. Studying charmonium polarization in ultrarelativistic collisions can also provide insights into the underlying production mechanisms. With …

[Phys. Rev. C 109, 034910] Published Mon Mar 18, 2024

]]>Hyperorder cumulants ${C}_{5}/{C}_{1}$ and ${C}_{6}/{C}_{2}$ of net-baryon distributions are anticipated to offer crucial insights into the phase transition from quark-gluon plasma to hadronic matter in heavy-ion collisions. However, the accuracy of ${C}_{5}$ and ${C}_{6}$ is highly contingent on the fine shape of the distribution's tai…

[Phys. Rev. C 109, 034911] Published Mon Mar 18, 2024

]]>The neutron skin thickness of the benchmark nucleus ${}^{208}\mathrm{Pb}$ is crucial for our understanding of the equation of state of nuclear matter. In this paper, we discuss the effect of the neutron skin on the flow ratio observables in the semi-isobaric collisions ${}^{208}\mathrm{Pb}+{}^{208}\mathrm{Pb}$ and ${}^{197}\mathrm{Au}+{}^{197}\mathrm{Au}$ using iebe-vishnu …

[Phys. Rev. C 109, 034912] Published Mon Mar 18, 2024

]]>Atomic masses of the neutron-rich isotopes ${}^{83,84}\mathrm{Ga},{}^{82\u201386}\mathrm{Ge},{}^{82\u201389}\mathrm{As},{}^{82,84\u201391}\mathrm{Se},{}^{85,86,89\u201392}\mathrm{Br},{}^{89,91,92}\mathrm{Kr}$, and ${}^{91}\mathrm{Rb}$ have been measured with high precision and accuracy using the multi-reflection time-of-flight mass spectrograph at the RIBF facility. The masses of ${}^{88,89}\mathrm{As}$ were measured for the firs…

[Phys. Rev. C 109, 035804] Published Mon Mar 18, 2024

]]>Built upon the state-of-the-art model a multiphase transport, we develop a new module of chiral anomaly transport (CAT) to trace the evolution of the initial topological charge of the gauge field created through sphaleron transition at finite temperature and the external magnetic field in heavy-ion …

[Phys. Rev. C 109, L031903] Published Mon Mar 18, 2024

]]>The lifetimes of the first ${2}^{+}$ states in ${}^{116,118}\mathrm{Te}$ were measured by means of the recoil distance Doppler-shift technique with the CIAE-plunger coupled to a HPGe array via ${}^{107}\mathrm{Ag}({}^{12}\mathrm{C},3n)$ and ${}^{110}\mathrm{Pd}({}^{12}\mathrm{C},p3n)$ reactions, respectively. The spectra are analyzed using the differential decay curve method. An i…

[Phys. Rev. C 109, 034310] Published Fri Mar 15, 2024

]]>Scattering experiments were performed at the Geel Electron Linear Accelerator (GELINA) to determine the differential cross sections of neutron elastic and inelastic scattering on ${}^{54}\mathrm{Fe}$, using a highly enriched sample. Neutron energies were calculated via the time-of-flight technique. The scattered ne…

[Phys. Rev. C 109, 034612] Published Fri Mar 15, 2024

]]>Optical potentials, either phenomenological or microscopic, are used in nuclear reactions to reduce the complexity of the quantum many-body scattering to a tractable one-body problem. In this work the authors extend to heavier nuclei a highly predictive microscopic approach based on $a\phantom{\rule{0}{0ex}}b$-$i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}o$ self-consistent Green’s function (SCGF) calculations that use $N\phantom{\rule{0}{0ex}}N$ and $3N$ chiral interactions as the only input. The computed elastic proton scattering off Ca and Ni isotope chains demonstrate the stability of the SCGF input, a method that requires only polynomial scaling of computational resources and reaches masses up to 140 nucleons or more. The predictive power of their optical potential promises interesting implications for studying nuclei away from stability, a frontier in nuclear science including nuclear astrophysics in the coming years.

[Phys. Rev. C 109, 034613] Published Fri Mar 15, 2024

]]>Heavy-ion collisions, such as Pb-Pb or p-Pb, produce extreme conditions in temperature and density that make the hadronic matter transition to a new state, called quark-gluon plasma (QGP). Simulations of heavy-ion collisions provide a way to improve our understanding of the QGP's properties. These s…

[Phys. Rev. C 109, 034908] Published Fri Mar 15, 2024

]]>The contribution of $J/\psi $ production from coherent and incoherent photon-induced production is calculated in Au+Au and Cu+Cu collisions at $\sqrt{{s}_{NN}}=200$ GeV. The yield and nuclear modification factors $\left({R}_{AA}\right)$ contributed by photoproduction are presented as functions of transverse momentum $\left({p}_{T}\right)$ and centrality …

[Phys. Rev. C 109, 034909] Published Fri Mar 15, 2024

]]>A reliable way of calculating the width, $\mathrm{\Gamma}$, of an extremely narrow quantum resonance is suggested. The proposed method is based on expanding the Jost function in the Taylor series around the real resonance energy, ${E}_{r}$, and looking for its zero at the nearby complex point ${E}_{r}-i\mathrm{\Gamma}/2$. The coefficients of …

[Phys. Rev. C 109, 034610] Published Thu Mar 14, 2024

]]>A standard way to solve the Schrödinger equation is to discretize the radial coordinates and apply a numerical method for a differential equation, such as the Runge-Kutta method or the Numerov method. Here I employ a discrete basis formalism based on a finite mesh method as a simpler alternative, wi…

[Phys. Rev. C 109, 034611] Published Thu Mar 14, 2024

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