Low-spin excited states in ${}^{68}\mathrm{Zn}$ have been studied at the High Intensity Gamma-Ray Source ($\mathrm{HI}\gamma \mathrm{S}$) from the ground state up to the particle emission threshold using the nuclear resonance fluorescence technique and the newly developed clover array. Low-spin levels were excited by linearly polarized, 2.9…

[Phys. Rev. C 114, 034318] Published Tue Sep 15, 2026

This work proposes Quantum Monte Carlo (QMC) methods for interacting many-fermion systems by leveraging the stochastic gauge freedom, originally developed in Gaussian phase-space QMC, within the phaseless auxiliary-field QMC (AFQMC) framework. In particular, the approach reinterprets the conventiona…

[Phys. Rev. C 114, 034314] Published Mon Sep 14, 2026

Conventional nuclear mass formulas, predicated on the charge independence of nucleon-nucleon ($NN$) interactions, generally parametrize the neutron-proton asymmetry $[I=(N-Z)/A]$ using even powers or absolute values. Previously, an $I^3$ term was incorporated into the classical liquid drop model to examine…

[Phys. Rev. C 114, 034315] Published Mon Sep 14, 2026

A consistent finite-temperature microscopic theory for the response of strongly coupled superfluid fermionic systems is formulated. We start from the general many-body Hamiltonian with the vacuum (bare) two-fermion interaction and derive the equation of motion (EOM) for the thermally averaged two-ti…

[Phys. Rev. C 114, 034316] Published Mon Sep 14, 2026

We investigate the Gamow-Teller (GT) transition strength distributions in the light carbon isotopes ${}^{12,14,16}\mathrm{C}$ within the framework of the deformed quasiparticle random-phase approximation (DQRPA). Nuclear deformation is explicitly incorporated through Skyrme-Hartree-Fock mean-field calculations comb…

[Phys. Rev. C 114, 034317] Published Mon Sep 14, 2026

Background: The nuclear structure in the region southwest of the doubly magic ${}^{208}\mathrm{Pb}$ is important to benchmark theoretical models relevant for neutron-rich heavy element formation and for the origin of the $A\approx 195$ peak in the mass abundance distribution. Although neutron-rich Pb, Tl, and Hg ($Z=80\text{–}82$) i…

[Phys. Rev. C 114, 034313] Published Thu Sep 10, 2026

The present investigation focuses on the improvement of the accuracy of the description of physical observables of interest in a moderately sized fermionic basis within the framework of covariant density functional theory. It extends the previous study [B. Osei et al., Phys. Rev. C 112, 054321 (202…

[Phys. Rev. C 114, 034312] Published Wed Sep 09, 2026

Systematic calculations of $\alpha$-decay and spontaneous-fission (SF) properties are presented for the even-even superheavy isotopic chains with $Z=120–130$. The $\alpha$-decay half-lives are evaluated within the density-dependent cluster model using a double-folding potential with a zero-range exchange approximat…

[Phys. Rev. C 114, 034306] Published Tue Sep 08, 2026

Starting from a chiral two- plus three-nucleon interaction, we perform a systematic study of the low-lying states of neutron-rich nuclei around $N=20$ using the in-medium generator coordinate method, which combines the multireference in-medium similarity renormalization group with the quantum-number p…

[Phys. Rev. C 114, 034307] Published Tue Sep 08, 2026

A simple pattern of organization, the nuclear shell structure, emerges from the complex interactions between nucleons in nuclei and determines, to some significant degree, nuclear structure properties. Recent experimental investigations of exotic nuclei revealed a shortfall in our current understand…

[Phys. Rev. C 114, 034308] Published Tue Sep 08, 2026

The relativistic wave functions of ${}^3\mathrm{He}$ and ${}^3\mathrm{H}$ nuclei are calculated in the framework of light-front dynamics. They are determined by 32 spin-isospin components, each of which depends on five scalar variables. For nucleon-nucleon interaction, the one-boson exchange model is assumed but without a pote…

[Phys. Rev. C 114, 034309] Published Tue Sep 08, 2026

Nuclear mass prediction is one of the core issues in nuclear physics research, yet it faces the challenge of small-sample datasets with high complexity. This study introduces the Kolmogorov-Arnold network (KAN) into the refinement of nuclear mass models, proposing an efficient and interpretable solu…

[Phys. Rev. C 114, 034310] Published Tue Sep 08, 2026

Neutron-deficient nuclei in the $N\approx Z, A\approx 90$ region were produced by fragmentation of a relativistic ${}^{107}\mathrm{Ag}$ beam at the GSI Helmholtz Centre for Heavy Ion Research (GSI), separated in the fragment separator FRS, slowed down, and thermalized, and high-precision mass measurements were performed employing …

[Phys. Rev. C 114, 034311] Published Tue Sep 08, 2026

We theoretically investigate a quartet superfluid state in fermionic matter by using the quartet Bardeen-Cooper-Schrieffer (BCS) variational theory and the Green's function method. We demonstrate that the quartet BCS theory with the multiple-infinite-product ansatz successfully reproduces an exact f…

[Phys. Rev. C 114, 034304] Published Fri Sep 04, 2026

To study the isoscalar giant resonances in a deformed case, background-free $\alpha$-particle inelastic scattering measurements using a 386 MeV $\alpha$ beam were performed on the highly deformed ${}^{172}\mathrm{Yb}$ nucleus using the Grand Raiden spectrometer at the Research Center for Nuclear Physics (RCNP) at very forward an…

[Phys. Rev. C 114, 034305] Published Fri Sep 04, 2026

We develop a generalized finite-temperature proton-neutron BCS framework using the superoperator formalism, incorporating both isovector and isoscalar monopole pairing channels. Numerical calculations for a schematic equidistant multilevel model and realistic even-even Ge isotopes demonstrate the em…

[Phys. Rev. C 114, 034303] Published Thu Sep 03, 2026

The excitation energy difference between terminating states based on the $f_{7/2}^n$ and $d_{3/2}^{-1}{f}_{7/2}^{n+1}$ configurations has been studied within the cranked relativistic mean field framework. The discrepancy between the experimental data and the theoretical predictions is found to decrease systematically wit…

[Phys. Rev. C 114, 034302] Published Wed Sep 02, 2026

We examined the ratios of neutron and proton transition matrix elements, $M_n/M_p$, for the $0_{gs}^{+}\to 2_1^{+}$ transitions in 48 even-even stable nuclei with $N>20$ for which electromagnetic matrix elements were compiled by Pritychenko et al. and for which high-quality inelastic proton-scattering data were avail…

[Phys. Rev. C 114, 034301] Published Tue Sep 01, 2026

A microscopic statistical model based on the relativistic density functional theory (RDFT) is developed to calculate the nuclear level density (NLD). The approach employs self-consistent single-particle levels obtained from RDFT as input, incorporates pairing correlations within a finite-temperature…

[Phys. Rev. C 114, 024345] Published Mon Aug 31, 2026

Background: Recent studies of the β decay of fission fragments by total absorption spectroscopy have found less decay energy attributed to leptons than previously believed, with studies of ${}^{105}\mathrm{Mo}$ and ${}^{105}\mathrm{Tc}$ being particularly impactful for reactor decay heat. These results are also crucial for interpr…

[Phys. Rev. C 114, 024346] Published Mon Aug 31, 2026

The gap equations lie at the core of the Bardeen-Cooper-Schrieffer (BCS) theory, a standard tool in the description of superfluidity. As a set of non-inear integral equations, the gap equations' inherent difficulties oftentimes hinder even the crudest descriptions of superfluid states. Hard-core pot…

[Phys. Rev. C 114, 024340] Published Thu Aug 27, 2026

We report new data from a ${}^{150}\mathrm{Nd}(p,t){}^{148}\mathrm{Nd}$ experiment performed at the John D. Fox Accelerator Laboratory of Florida State University. In total, 54 excited states of ${}^{148}\mathrm{Nd}$ were observed up to an excitation energy of 3500 keV. In this work, we focus on $0^{+}$ states and their band members. In contrast to …

[Phys. Rev. C 114, 024344] Published Thu Aug 27, 2026

Based on relativistic mean field theory for atomic nuclei, we compute the mass radius and other radii associated with the energy momentum tensor for dozens of spin-0 nuclei across the nuclear chart. We also compute the D-term of these nuclei, the forward limit of the gravitational form factor $D(t=0)\dots$

[Phys. Rev. C 114, 024343] Published Wed Aug 26, 2026

The collective structure of low-lying states in the $N=50$ nucleus ${}^{92}\mathrm{Mo}$ $(Z=42)$ has been investigated through sub-barrier Coulomb excitation using the CHICO2 device coupled to the $\gamma$-ray energy tracking in-beam nuclear array (GRETINA). Quadrupole and octupole collective properties are measured for the $2_{\mathrm{\dots }}^{}$

[Phys. Rev. C 114, 024338] Published Tue Aug 25, 2026

Quantum computing is increasingly offering concrete solutions toward the simulation of nuclear structure, with the potential to overcome the exponential scaling that limits classical diagonalization methods in large spaces. A particularly efficient encoding scheme, based on collective like-nucleon p…

[Phys. Rev. C 114, 024339] Published Tue Aug 25, 2026

This study investigates nuclear responses to two-body external fields, interpreted as double-phonon excitations, within the subtracted second random-phase approximation (SSRPA) for ${}^{16}\mathrm{O}$ and ${}^{40}\mathrm{Ca}$. To clarify the underlying characteristics of these modes, Hartree–Fock and SSRPA with the diagonal approx…

[Phys. Rev. C 114, 024341] Published Tue Aug 25, 2026

Half-lives of yrast excited states in ${}^{94}\mathrm{Pd}$ were measured using isomeric decay spectroscopy. The experiment was performed at Radioactive Isotope Beam Factory, where ${}^{94}\mathrm{Pd}$ ions were produced via in-flight fragmentation of a ${}^{124}\mathrm{Xe}$ beam impinging on a ${}^9\mathrm{Be}$ target. These ions were implanted into the GARi a…

[Phys. Rev. C 114, 024342] Published Tue Aug 25, 2026

The electrostatic field strength inside heavy nuclei far exceeds the famous Schwinger critical field strength and most intense laser fields available nowadays. Under such an extreme electric field, the quantum electrodynamics (QED) effect dominated by vacuum polarization in the nuclear system turns …

[Phys. Rev. C 114, L021303] Published Tue Aug 25, 2026

High-spin states in the neutron-deficient nucleus ${}_{61}{}^{131}\mathrm{Pm}_{70}$ have been investigated using the Jurogam 3 $\gamma$-ray spectrometer. This is the lightest promethium isotope with known excited states. The proton intruder $h_{11/2}$ rotational structure has been extended to both higher and lower spin, and its unfavo…

[Phys. Rev. C 114, L021304] Published Tue Aug 25, 2026

We investigate the finite-temperature evolution of microscopic free-energy corrections in nuclear fission, focusing on pairing and shell effects near scission. The analysis is based on a finite-temperature BCS treatment combined with the Strutinsky method and is performed for representative deformat…

[Phys. Rev. C 114, 024336] Published Mon Aug 24, 2026

We study deformed neutron halo nuclei in the mass region $40<A<90$ and their soft electric dipole $\left(E1\right)$ excitations based on the deformed relativistic Hartree-Bogoliubov theory in continuum. Three candidates, ${}^{43}\mathrm{Si}$, ${}^{69}\mathrm{Ti}$, and ${}^{75}\mathrm{Cr}$, are selected for detailed analysis. Unique features are identified…

[Phys. Rev. C 114, 024337] Published Mon Aug 24, 2026

High-spin states of ${}^{125}\mathrm{I}$ have been populated using the ${}^{122}\mathrm{Sn}({}^7\mathrm{Li},4n){}^{125}\mathrm{I}$ reaction at a beam energy of 44 MeV. Four three-quasiparticle rotational bands originating from neutron alignment were observed. A pair of nearly degenerate positive-parity doublet bands is assigned the $\pi g_{7/2}\otimes \nu h_{11/2}^2$ configurat…

[Phys. Rev. C 114, 024335] Published Fri Aug 21, 2026

Background: The $N=80$ isotones offer an important opportunity for studying nuclear structure evolution and the interplay between single-particle motion and collective behavior near the $N=82$ shell closure. Although the nuclear shell model is a powerful and predictive framework, progress for the open-s…

[Phys. Rev. C 114, 024332] Published Thu Aug 20, 2026

Low-spin excitations of ${}^{91}\mathrm{Zr}$ and ${}^{93}\mathrm{Zr}$ nuclei, populated in the ($n,\gamma$) cold-neutron-capture reactions, have been studied using the highly efficient array EXILL, at the Institute-Laue-Langevin (ILL), Grenoble. 14 new excited levels and 36 new $\gamma$ transitions, including 16 primary decays, have been found …

[Phys. Rev. C 114, 024333] Published Thu Aug 20, 2026

The exponential growth of the model space often hinders accurate configuration interaction shell model (CISM) calculations for nuclear structure. To address this, we develop an adaptive CISM (ACISM) approach, adapted from the adaptive configuration interaction (ACI) approach used in quantum chemistr…

[Phys. Rev. C 114, 024330] Published Wed Aug 19, 2026

Background: Hypernuclear physics studies baryon interactions and the structure of exotic atomic nuclei, where strangeness plays a key role in dense matter. High-resolution $\gamma$-ray spectroscopy (e.g., Hyperball at BNL/KEK) and upcoming facilities (J-PARC and JLab) have provided precise data on $p$-shell …

[Phys. Rev. C 114, 024331] Published Wed Aug 19, 2026

Understanding nuclear forces, infinite nuclear matter, and finite nuclei within a unified framework has remained a central challenge in nuclear physics for decades. While most ab initio studies employ nonrelativistic Schrödinger-equation frameworks, this work offers a relativistic perspective. Using…

[Phys. Rev. C 114, 024328] Published Mon Aug 17, 2026

Background: Fragment shell effects are central to the formation of spontaneous-fission (SF) mass yields. However, it remains unclear which configurations favored by fragment shell effects are dynamically selected and ultimately appear as peaks in the SF yields.

Purpose: To clarify, by comparing ${}^{\mathrm{24\dots }}\mathrm{Pu}$

[Phys. Rev. C 114, 024329] Published Mon Aug 17, 2026

Charge radii differences of mirror partner nuclei provide an alternative probe to pin down the interaction components in asymmetric nuclear matter. In this work, the differences in the charge radii of almost spherical mirror-paired nuclei ${}^{54}\mathrm{Ni}\text{−}{}^{54}\mathrm{Fe}$ and ${}^{36}\mathrm{Ca}\text{−}{}^{36}\mathrm{S}$ are used to constrain the magnitude of…

[Phys. Rev. C 114, 024323] Published Fri Aug 14, 2026

The dynamical influence of $\mathrm{\Lambda }$ hyperons on the excited-state properties of closed-shell multi-$\mathrm{\Lambda }$ Ca, Ni, Sn, and Pb hypernuclei is investigated using the self-consistent Hartree-Fock $+$ Random Phase Approximation in coordinate space. The strength distributions for the isoscalar monopole, isovector dipol…

[Phys. Rev. C 114, 024325] Published Fri Aug 14, 2026

We perform an ab initio quantum Monte Carlo calculation of the isospin-symmetry-breaking correction ${\delta }_C$ to the superallowed $\beta$ decay of ${}^{10}\mathrm{C}$. Using both phenomenological and chiral nuclear interactions, we evaluate the Fermi matrix element and quantify its deviation from the canonical $\sqrt{2}$ value. The resu…

[Phys. Rev. C 114, 024326] Published Fri Aug 14, 2026

Low-resolution nuclear Hamiltonians, obtained from chiral effective field theory (EFT) and softened using renormalization group techniques, have been very successful in nuclear structure theory. The associated EFT truncation uncertainty for these potentials is difficult to quantify. We use singular …

[Phys. Rev. C 114, 024327] Published Fri Aug 14, 2026

Background: Due to its large production cross section, ${}^{254}\mathrm{No}$ is the most-studied nucleus in the transfermium region and has been the “pioneer” nucleus in many different types of studies ranging from in-beam and decay $\gamma$-ray spectroscopy to $\gamma$-ray calorimetry. ${}^{254}\mathrm{No}$ is a well-deformed nucleus. At low e…

[Phys. Rev. C 114, 024324] Published Thu Aug 13, 2026

This paper reports on the first complete shell-model description of low-lying structures of ${}^{254}\mathrm{No}$. Employing the Kuo-Herling effective interaction, the calculations are performed using the discrete nonorthogonal shell model recently implemented within the angular-momentum variation after projection …

[Phys. Rev. C 114, L021302] Published Thu Aug 13, 2026

In this first-of-its-kind survey conducted on heavy and deformed nuclei in the actinide region of the nuclear chart, we have charted nuclear ground state properties predicted by Fayans energy density functionals (EDFs), focusing in particularly on octupole deformability. Compared to earlier studies …

[Phys. Rev. C 114, 024319] Published Wed Aug 12, 2026

Properties of isomeric states and the deexcitation paths to the ground state have been observed in ${}^{165}\mathrm{W}$ and ${}^{169}\mathrm{W}$ nuclei in experiments employing fusion-evaporation reactions at the Accelerator Laboratory of the University of Jyväskylä, Finland. The $(13/2^{+})$ isomeric state in ${}^{165}\mathrm{W}$ was measured to have…

[Phys. Rev. C 114, 024320] Published Wed Aug 12, 2026

A study of the $N=89$ odd-odd nucleus ${}^{150}\mathrm{Pm}$ with the ${}^{152}\mathrm{Sm}(d,\alpha )$ reaction at 18 MeV incident energy is presented. A distorted-wave Born approximation (DWBA) analysis of measured angular distributions has been performed for 48 states observed in this nucleus up to $E_x\approx 1.4$ MeV, yielding information on the…

[Phys. Rev. C 114, 024321] Published Wed Aug 12, 2026

An yrast, $J^{\pi }=5^{-}$, spin-trap isomer has been previously identified in ${}^{32}\mathrm{Si}$. The isomeric state decays predominantly via a hindered $E3$ transition [$B$($E3$) = 0.0841(10) W.u.], bypassing a nearby $E2$ decay path to the first excited $3^{-}$ level. The single-neutron aspects of these negative-parity levels were in…

[Phys. Rev. C 114, 024322] Published Wed Aug 12, 2026

An outstanding puzzle in the structure of very heavy nuclei lies in the rotation response of deformed transuranic isotopes. While the rotation alignment of pairs of $i_{13/2}$ protons is ubiquitous and well understood, observing the analogous alignment of the $j_{15/2}$ neutrons has been elusive. In this work…

[Phys. Rev. C 114, L021301] Published Wed Aug 12, 2026

Employing the relativistic continuum Hartree-Bogoliubov (RCHB) theory with intrinsic electromagnetic structure corrections, this work primarily investigates the charge properties of halo nuclei along the Ne and P isotopic chains. Our results characterize halo nuclei by an extended tail in the charge…

[Phys. Rev. C 114, 024315] Published Mon Aug 10, 2026

One- and two-quasiparticle spectra are calculated in superheavy nuclei ${}^{293}119$ and ${}^{294,296,298}119$, respectively, within the two-center shell model. Possible $\alpha$-decay chains of those 119 nuclei are analyzed. The role of isomeric states in the $\alpha$-decay spectra is considered. The calculated $Q_{\alpha }$ energies ar…

[Phys. Rev. C 114, 024316] Published Mon Aug 10, 2026

Weak Gamow-Teller (GT) responses for low-lying states in ${}^{71}\mathrm{Ga}$ are crucial for studying low-energy solar neutrinos and the Ga anomaly, i.e., the possible transition to the sterile state. The structures for the ground state, the first excited state, and the second excited state are evaluated for the f…

[Phys. Rev. C 114, 024317] Published Mon Aug 10, 2026

The relativistic Hartree-Fock-Bogoliubov (RHFB) framework has been extended to incorporate axially symmetric octupole deformation, leading to the development of the O-RHFB model. This model is applied to analyze the onset of octupole deformation in ${}^{228}\mathrm{Th}$ and the proton-drip-line candidate ${}^{114}\mathrm{Ba}$ usin…

[Phys. Rev. C 114, 024318] Published Mon Aug 10, 2026

As a fundamental property of atomic nuclei, the nuclear charge radius reveals rich structural characteristics such as shell evolution and pairing correlation. Previously, machine learning strategies have been employed in this domain by typically utilizing the residuals between experimental measureme…

[Phys. Rev. C 114, 024314] Published Fri Aug 07, 2026

The nuclei with 50 neutrons that lie between ${}^{78}\mathrm{Ni}$ and ${}^{100}\mathrm{Sn}$ have provided benchmark studies of the nuclear shell model for protons in the $\{0f_{5/2},1p_{3/2},1p_{1/2},0g_{9/2}\}$ model space. New Hamiltonians for this model space have recently been obtained based on valence-space in-medium renormalization-group (V…

[Phys. Rev. C 114, 024312] Published Thu Aug 06, 2026

Measurements of the ${}^1\mathrm{H}({}^{11}\mathrm{Li},{}^9\mathrm{Li}){}^3\mathrm{H}$ reaction at 6 MeV per nucleon yield differential cross sections for transitions to the ${}^9\mathrm{Li}$ ground and 2.69 and 4.30 MeV excited states. The transition to the 4.30 MeV $(5/2^{-})$ state is observed for the first time in this reaction. Coupled-reaction-channel calculation…

[Phys. Rev. C 114, 024313] Published Thu Aug 06, 2026

Exceptional points (EPs) are non-Hermitian degeneracies at which two eigenvalues and their eigenvectors coalesce, producing a defective Hamiltonian and a double pole of the $S$-matrix. Using the coupled-channel Gamow shell model with the $\ell =1$ spin-orbit strengths as control parameters, we locate and ch…

[Phys. Rev. C 114, 024311] Published Wed Aug 05, 2026

To consider the dynamic octupole correlations in odd-mass nuclei, an angular-momentum-dependent octupole-vibration core is incorporated into the octupole core-quasiparticle coupling model, and the structure of ${}^{233}\mathrm{Th}$ is studied as a representative example. The calculated positive- and negative-parity…

[Phys. Rev. C 114, 024308] Published Tue Aug 04, 2026

Neutron-rich nuclei in the region of $Z\approx 28$ and $N\approx 40$ demonstrate a noticeable departure from traditional mean-field nuclear properties through shell evolution effects, display variations in deformation and shape coexistence, and may fall along astrophysical neutron-capture nucleosynthesis pathways. Sp…

[Phys. Rev. C 114, 024309] Published Tue Aug 04, 2026

Nuclear excitation by electron capture (NEEC) is a coupled nuclear-atomic process by which the capture of an electron by an ion into an atomic vacancy results in the excitation of the corresponding nucleus into a higher excited state. To date, there has been only one experimental result, for the nuc…

[Phys. Rev. C 114, 024310] Published Tue Aug 04, 2026

Within the interacting boson model (IBM), a geometric analysis of transitional nuclei is carried out through angular momentum projection of the intrinsic coherent state. The results indicate that $K$-mixing effects in the calculations are typically negligible, validating the use of $K$-fixed projection …

[Phys. Rev. C 114, 024301] Published Mon Aug 03, 2026

An efficient emulator for ab initio calculations of nuclear ground-state properties is developed by integrating the neural-network variational Monte Carlo framework, FeynmanNet, with the eigenvector continuation. It enables the calculation of observables for different Hamiltonians with minimal compu…

[Phys. Rev. C 114, 024302] Published Mon Aug 03, 2026

The very neutron-deficient ${}^{115}\mathrm{I}$ nucleus has been studied using the ${}^{58}\mathrm{Ni}({}^{64}\mathrm{Zn},$ $1\alpha 3\mathrm{p})$ reaction and JUROGAM 3 $\gamma$-ray detector array coupled to the MARA recoil-mass separator. The previously known bands have been largely revised and have been extended to high spin by five newly identified rotational band…

[Phys. Rev. C 114, 024303] Published Mon Aug 03, 2026

Proton radioactivity provides a sensitive probe of single-particle structure beyond the proton drip line, but global half-life descriptions are often limited by the approximate treatment of nuclear-structure effects. We find that introducing an $E_{\mathrm{mic}}$-dependent proton preformation factor within the tr…

[Phys. Rev. C 114, 024304] Published Mon Aug 03, 2026

Neutron knockout reactions on beams of ${}^{104,102}\mathrm{Cd}$ and ${}^{104}\mathrm{Sn}$ are presented. States in the residual ${}^{103,101}\mathrm{Cd}$ and ${}^{103}\mathrm{Sn}$ nuclei are populated, including low-lying $7/2^{+}$ states of $\nu g_{7/2}$ character. These states have half-lives $\approx 400$ ps due to their low energy and hindered $B(M1;7/2^{+}\to 5/2^{+})$ strengths. The exci…

[Phys. Rev. C 114, 024305] Published Mon Aug 03, 2026

We present coupled-channel Gamow shell model (GSM-CC) calculations of the ${}^{13}\mathrm{O}$($p,p$) and ${}^{14}\mathrm{O}$($p,p$) elastic-scattering reactions in the $\mathrm{core}+\mathrm{valence}$ nucleon picture. Within this unified framework, we investigate the structural and scattering properties of the proton-unbound nuclei ${}^{14}\mathrm{F}$ and ${}^{15}\mathrm{F}$. GSM-CC re…

[Phys. Rev. C 114, 024306] Published Mon Aug 03, 2026

High-spin states in ${}^{60}\mathrm{Cu}$ are investigated on the basis of reaction-channel-selected $\gamma$-ray spectroscopy. Data stem from three experiments that used the same fusion-evaporation reaction at similar beam energies. The Gammasphere $\gamma$-ray spectrometer was combined with the Microball CsI(Tl) detector array …

[Phys. Rev. C 114, 024307] Published Mon Aug 03, 2026

The symmetric double-$\alpha$ decay of ${}^{216,218}\mathrm{Rn}$ and ${}^{220,222}\mathrm{Ra}$ has been investigated at the ISOLDE facility. Radioactive molecular ${}^{220,222}\mathrm{RaF}$ ion beams were produced and delivered at an energy of 30 keV with intensities of approximately ${10}^3$ and ${10}^5\mathrm{pps}$, respectively. The ions were implanted into a thin self…

[Phys. Rev. C 114, 014337] Published Thu Jul 30, 2026

We investigate microscopically systematic behavior of shape coexistence in even-even ${}^{106–120}\mathrm{Sn}$ isotopes in the framework of the shell model. The two-particle and two-hole (2p-2h) proton excitations across the $Z=50$ closed shell gap are essential to describe the deformed intruder states built on the f…

[Phys. Rev. C 114, L011303] Published Thu Jul 30, 2026

Sub-barrier photo-induced fission in ${}^{236}\mathrm{U}(\gamma ,f)$ is investigated within the nonequilibrium Green's function method. A model space for the fission process is constructed by superposing Skyrme-Hartree-Fock wave functions along the fission path allowing the particle-hole excitation. Then, the transition …

[Phys. Rev. C 114, 014334] Published Tue Jul 28, 2026

The deformation properties within the ${}^{98–106}\mathrm{Ru}$ even-even isotopic chain, are investigated by means of the covariant density functional theory with a density-dependent point-coupling x parametrization. The considered nuclei are found to exhibit very shallow prolate and triaxial ground-state deformati…

[Phys. Rev. C 114, 014335] Published Tue Jul 28, 2026

Based on the octupole core-quasiparticle coupling model, the effect of different octupole-correlated configurations—$\pi (2p_{3/2},1g_{9/2}), \pi (2d_{5/2},1h_{11/2})$, and $\pi (2f_{7/2},1i_{13/2})$—on wobbling motion in octupole deformed odd-$A$ nuclei is systematically investigated. Spin coherent state plots are constructed to v…

[Phys. Rev. C 114, 014336] Published Tue Jul 28, 2026

Understanding the emergence of complex structures of nuclei from chiral effective field theory (EFT) is a central challenge. The large number of low-energy couplings (LECs) in the EFT expansion and the significant cost of ab initio many-body calculations render large-scale sensitivity studies of man…

[Phys. Rev. C 114, 014330] Published Mon Jul 27, 2026

The impact of hexadecapole correlations on the low-energy spectroscopic properties of Th, U, and Pu nuclei, within the mass range $232\le A\le 240$, is studied systematically using the mapped $sdg$-IBM model. Fermionic input is obtained via the quadrupole-hexadecapole constrained Hartree-Fock-Bogoliubov appro…

[Phys. Rev. C 114, 014331] Published Mon Jul 27, 2026

Background: double-$\alpha$ decay is an exotic nuclear decay mode that offers a sensitive probe of quantum tunneling, nuclear clustering, and barrier penetration phenomena in medium-heavy and heavy nuclei. Despite being energetically allowed for a significant fraction of nuclei, this decay mode remains exp…

[Phys. Rev. C 114, 014332] Published Mon Jul 27, 2026

The ratio of the nuclear binding energy to the charge radius is systematically analyzed based on the experimental data of both. The linear relationship is observed between the ratios for nuclei $(Z,N)$ and those for $(Z,N-2)$. Together with this linear relationship, the nuclear charge radius can be extr…

[Phys. Rev. C 114, 014333] Published Mon Jul 27, 2026

Accurate determination of the neutron skin thickness $\left(\mathrm{\Delta }{R}_{\mathrm{np}}\right)$ in finite nuclei is essential for constraining the density dependence of the nuclear symmetry energy. This work presents a systematic investigation of $\mathrm{\Delta }{R}_{\mathrm{np}}$ for the transuranium berkelium (Bk) isotopes within the framework of the deformed re…

[Phys. Rev. C 114, 014328] Published Fri Jul 24, 2026

The cluster structure in light nuclei has been studied by using the extended quantum molecular dynamics model. It is found that the effective number of $\alpha$ clusters in Be, B, C, N, O, and F isotope generally decreases with increasing isospin asymmetry and chain molecular structure exists in non-$\alpha$ conj…

[Phys. Rev. C 114, 014329] Published Fri Jul 24, 2026

Variational methods employing symmetry-breaking intrinsic states offer alternative ways to tackle large-scale shell model calculations. While the latter provides a unified picture of the rotational motion and shell structure, the former has been known to provide a good approximation for the description of nuclear deformation. However, in such approaches, it is generally difficult to fully capture the effects of pairing correlations, for example in the backbending phenomena where the collective rotational motion is significantly disturbed. In this paper, the binding energies of levels coming from large-scale shell-model calculations are exactly reproduced using a discrete set of non-orthogonal Slater determinants, thus verifying their relevance for describing pairing properties as demonstrated in the ground-state band of 48Cr and the ground state of 78Ni, which is at the limit of conventional shell-model calculations. These results constitute a firm proof of the Broeckhove-Deumens theorem on the completeness property of non-orthogonal wave functions in realistic shell-model calculations.

[Phys. Rev. C 114, 014327] Published Wed Jul 22, 2026

The low-lying excitations in odd-odd ${}^{150}\mathrm{Pm}$ have been studied through proton-induced reaction on ${}^{150}\mathrm{Nd}$ with an array of five Compton-suppressed Clover HPGe detectors and one segmented planar Ge detector. The relative excitation functions for the observed $\gamma$ rays have been studied using singles data at…

[Phys. Rev. C 114, 014326] Published Tue Jul 21, 2026

The effects of triaxial softness on wobbling motion are investigated within the framework of the core-quasiparticle coupling model. By coupling a high-$j$ valence nucleon located in low shell or middle shell to a $\gamma$-rigid and $\gamma$-soft core, we compare energy spectra and electromagnetic transitions of odd…

[Phys. Rev. C 114, 014324] Published Mon Jul 20, 2026

The isomers in the very neutron-deficient isotopes ${}^{179m,181m}\mathrm{Hg}$ and ${}^{179m}\mathrm{Tl}$ were populated via fusion-evaporation reaction ${}^{78}\mathrm{Kr}+{}^{107}\mathrm{Ag}\to {}^{185}\mathrm{Bi}^{*}$. Using the gas-filled recoil separator SHANS (Lanzhou), the nuclei of interest were efficiently transported and separated from scattered beam particles and unwan…

[Phys. Rev. C 114, 014325] Published Mon Jul 20, 2026

The lowest states of the ${}^{52,54}\mathrm{Cr}$ isotopes are investigated for the presence of the shape coexistence phenomenon. The ground state deformation is extracted using the covariant density functional theory with a density-dependent point-coupling X parametrization, while the properties of the excited stat…

[Phys. Rev. C 114, 014322] Published Fri Jul 17, 2026

A detailed investigation of the structural evolution of mercury (Hg) isotopes with mass numbers $A=174$–266 is carried out within the Skyrme Hartree-Fock-Bogoliubov (SHFB) framework using the UNEDF2 energy density functional. The study encompasses both bulk nuclear properties, such as binding energies…

[Phys. Rev. C 114, 014323] Published Fri Jul 17, 2026

The electron spectra of the $\beta$ decays of ${}^{92}\mathrm{Rb}$ and ${}^{142}\mathrm{Cs}$, key contributors to the reactor antineutrino spectrum, were measured at the IGISOL facility using radioactive beams of high isotopic purity. The shapes of the measured $\beta$ spectra were compared with various $\beta$-shape models, including first-forbidd…

[Phys. Rev. C 114, 014319] Published Thu Jul 16, 2026

Background: Positron decays of proton-rich nuclides exhibit large $Q$ values, producing complex cascades which frequently involve various radiations, including protons and $\gamma$ rays. Often, only one of the two is measured in a single experiment, limiting the accuracy and completeness of the decay scheme.…

[Phys. Rev. C 114, 014320] Published Thu Jul 16, 2026

A microscopic energy term is introduced into the $\alpha$-decay energy correlation formula and further extended to half-life predictions, substantially improving the predictive accuracy of both quantities, particularly in regions near nuclear shell closures. For 96 reference-target pairs, the root-mean-squ…

[Phys. Rev. C 114, 014321] Published Thu Jul 16, 2026

Despite its nucleon numbers not coinciding with the traditional nuclear magic numbers, the structure of ${}^{54}\mathrm{Ca}$ shows signatures of a doubly closed shell nucleus. This article details the structures of neutron-excited states up to beyond the two-neutron emission threshold populated by the ${}^{55}\mathrm{Ca}(p,pn$) re…

[Phys. Rev. C 114, 014316] Published Wed Jul 15, 2026

We present a theoretical framework for understanding α-clustering in even-even self-conjugate ($N=Z$) nuclei through a deformed harmonic oscillator approach that incorporates schematic nuclear interactions. The work introduces three enhancements to conventional single-particle gap analyses: (1) a gene…

[Phys. Rev. C 114, 014317] Published Wed Jul 15, 2026

The excited states of ${}^{95}\mathrm{Nb}$ have been investigated using the heavy-ion fusion-evaporation reaction ${}^{82}\mathrm{Se}$(${}^{18}\mathrm{O},p4n){}^{95}\mathrm{Nb}$ at the beam energies of 82 and 88 MeV. Particle-$\gamma \text{−}\gamma$ and $\gamma \text{−}\gamma$ coincidence measurements using CsI and HPGe arrays are employed to gain selectivity to Nb isotopic products. The level schem…

[Phys. Rev. C 114, 014318] Published Wed Jul 15, 2026

The nuclear matrix elements (NMEs) of the neutrinoless double-$\beta$ ($0\nu \beta \beta$) decay in the candidate nuclei relevant to the current and next-generation experimental searches are crucial for extracting beyond-standard-model parameters from the experimental half-life measurements. However, the recently recog…

[Phys. Rev. C 114, L011301] Published Wed Jul 15, 2026

The present work aimed at the synthesis of the hitherto unknown ${}^{231}\mathrm{Am}$ and known ${}^{229}\mathrm{Am}$ isotopes via the $4n$ evaporation channels of the fusion reactions of ${}^{48}\mathrm{Ca}+{}^{187}\mathrm{Re}$ and ${}^{48}\mathrm{Ca}+{}^{185}\mathrm{Re}$, respectively. The new isotope ${}^{231}\mathrm{Am}$, with a half-life of ${47}_{-19}^{+85}\mathrm{s}$, was identified on the basis of five observed $\alpha$-deca…

[Phys. Rev. C 114, L011302] Published Wed Jul 15, 2026

Parity-violating electron scattering provides a largely model-independent way of measuring neutron densities in nuclei that has important implications for the structure of nuclei and neutron stars. In this paper we calculate radiative corrections to the parity-violating asymmetry $A_{\mathrm{pv}}$ in electron-nuc…

[Phys. Rev. C 114, 014312] Published Mon Jul 13, 2026

Three-nucleon force (3NF) plays an important role in understanding the structure of finite nuclei and the saturation properties of infinite nuclear matter. More specifically, 3NF should be necessary for each two-nucleon force (2NF) to obtain more accurate description of nuclear systems. 3NF derived …

[Phys. Rev. C 114, 014313] Published Mon Jul 13, 2026

When training data are limited, data-driven models are especially vulnerable to optimization-related fluctuations from random initialization and to sampling-induced bias from insufficient training data. We address both challenges with transfer learning (TL): deep neural networks (DNNs) are first pre…

[Phys. Rev. C 114, 014314] Published Mon Jul 13, 2026

Combining the Lipkin-Nogami (LN) method with the deformed relativistic Hartree-Bogoliubov theory in continuum, the impact of the LN correction on the deformed halo nucleus ${}^{42}\mathrm{Mg}$ is investigated. With the LN correction, it is found that the halo structure of ${}^{42}\mathrm{Mg}$ persists, and the decoupling of its pr…

[Phys. Rev. C 114, 014315] Published Mon Jul 13, 2026

Although there exists a clear and, in principle, exact theoretical formulation for the equation of motion for the response of a correlated fermionic system, its numerical implementations for atomic nuclei require feasible approximations. One of the widely accepted approximations is a truncated harmo…

[Phys. Rev. C 114, 014310] Published Fri Jul 10, 2026

Two-dimensional Generator Coordinate Method calculations for the axial quadrupole ${\beta }_2$ and hexadecapole ${\beta }_4$ collective deformations are carried out with the Gogny force in a series of Xe, Ba, Ce, and Nd isotopes with neutron numbers covering both magic neutron shell closures N = 82 and N = 126. The und…

[Phys. Rev. C 114, 014311] Published Fri Jul 10, 2026

Background: The low-lying level structures of deformed odd-odd nuclei away from the region of stability have been sparsely characterized due to low cross-section yields in reactions, short half-lives, and lack of dedicated studies. One such interesting case is the odd-odd rare-earth light-mass isoto…

[Phys. Rev. C 114, 014309] Published Thu Jul 09, 2026

Background: The region around $N=40$ in the Ni isotopes has attracted considerable interest both from an experimental and theoretical point of view over the last few decades after ${}^{68}\mathrm{Ni}$ was proposed as a doubly magic nucleus. However, the experimental evidence has proven contradictory and inconclusive.…

[Phys. Rev. C 114, 014305] Published Tue Jul 07, 2026