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Ongoing experimental efforts to measure with unprecedented precision electron-capture probabilities challenges the current theoretical models. The short range of the weak interaction necessitates an accurate description of the atomic…

原子物理 · 物理学 2024-04-02 A. Andoche , L. Mouawad , P. -A. Hervieux , X. Mougeot , J. Machado , J. P. Santos

Background: The understanding of the impact of initial deformation and collision orientation on quasi-fission and fusion-fission reactions remains incomplete. Purpose: This article aims to explore how the orientation of deformed nuclei…

核理论 · 物理学 2024-02-27 Yujie Feng , Huizi Liu , Yingge Huang , Fuchang Gu , Erxi Xiao , Xin Lei , Hui Wang , Jiali Huang , Long Zhu , Jun Su

The N = Z 44Ti* nucleus has been populated in Fusion Evaporation process at very high excitation energies and angular momenta using two entrance channels with different mass-asymmetry. The deformation effects in the rapidly rotating nuclei…

The reaction dynamics of axisymmetric deformed $^{24}$Mg + $^{24}$Mg collisions have been investigated systematically by an isospin-dependent quantum molecular dynamics (IDQMD) model. It is found that different deformations and orientations…

核理论 · 物理学 2014-11-21 X. G. Cao , G. Q. Zhang , X. Z. Cai , Y. G. Ma , W. Guo , J. G. Chen , W. D. Tian , D. Q. Fang , H. W. Wang

The quantum deformation concept is applied to a study of isovector pairing correlations in nuclei of the mass 40<A<100 region. While the non-deformed (q -> 1) limit of the theory provides a reasonable global estimate for strength parameters…

核理论 · 物理学 2007-05-23 K. D. Sviratcheva , C. Bahri , A. I. Georgieva , J. P. Draayer

Flow fluctuations in ultra-relativistic heavy-ion collision can be probed by studying the momentum dependent correlations or the factorization-breaking coefficients between flow harmonics in separate kinematic bins (transverse momentum or…

核理论 · 物理学 2023-06-06 Rupam Samanta , Piotr Bozek

In the framework of the Statistical Multifragmentation Model, the nuclear isoscaling analysis is extended to constrain the ratio between the sizes of the decaying sources formed in a collision between two heavy ions. It is found that the…

核理论 · 物理学 2022-07-05 S. R. Souza , R. Donangelo , W. G. Lynch , M. B. Tsang

Systematic analysis of the deformations of proton and neutron densities in even-even C isotopes was done based on the method of antisymmetrized molecular dynamics. The $E2$ transition strength was discussed in relation to the deformation.…

核理论 · 物理学 2009-11-10 Y. Kanada-En'yo

The structural evolution of the heavy nuclei, with Z > 82, is investigated by looking at the differential variation of the two-neutron separation energies. It indicates, by non-monotonous behavior at certain neutron numbers, structure…

核实验 · 物理学 2015-06-17 D. Bucurescu , N. V. Zamfir

$\alpha$-clustered structures in light nuclei could be studied through "snapshots" taken by relativistic heavy-ion collisions. A multiphase transport (AMPT) model is employed to simulate the initial structure of collision nuclei and the…

高能物理 - 唯象学 · 物理学 2020-11-18 Yi-An Li , Song Zhang , Yu-Gang Ma

Light (anti-)nuclei in relativistic heavy-ion collisions are considered to be formed by the coalescence mechanism of (anti-)nucleons in the present work. Using a dynamical phase-space coalescence model coupled with a multi-phase transport…

核理论 · 物理学 2022-01-13 Yi-Lin Cheng , Song Zhang , Yu-Gang Ma

We study the transverse momentum ($p_T$) differential anisotropic flow and flow fluctuation in Pb+Pb collisions at $\sqrt{s_{NN}}$=5.02 TeV at the LHC. A (3+1)-dimensional CLVisc hydrodynamics framework with fluctuating TRENTO (or AMPT)…

高能物理 - 唯象学 · 物理学 2024-01-30 Jie Zhu , Xiang-Yu Wu , Guang-You Qin

In relativistic heavy-ion collisions, jet quenching in quark-gluon plasma (QGP) has been extensively studied, revealing important insights into the properties of the color deconfined nuclear matter. Over the past decade, there has been a…

核理论 · 物理学 2024-09-05 Yang He , Mengxue Zhang , Maowu Nie , Shanshan Cao , Li Yi

The roles of nuclear deformation and neutron transfer in sub-barrier capture process are studied within the quantum diffusion approach. The change of the deformations of colliding nuclei with neutron exchange can crucially influence the…

核理论 · 物理学 2015-05-30 V. V. Sargsyan , G. G. Adamian , N. V. Antonenko , W. Scheid , H. Q. Zhang

One of the primary goals of nuclear physics is providing a complete description of the structure of atomic nuclei. While mean-field calculations provide detailed information on the nuclear shell structure for a wide range of nuclei, they do…

核实验 · 物理学 2012-10-11 J. Arrington , D. W. Higinbotham , G. Rosner , M. Sargsian

The advent of radioactive ion beam facilities and new detector technologies have opened up new possibilities to investigate the radioactive decays of highly unstable nuclei, in particular the proton emission, $\alpha$ decay and heavy…

核理论 · 物理学 2016-05-31 Chong Qi

We report first study of transverse momentum ($p_\mathrm{T}$) spectra for $\pi^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ in isobar, $^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr, collisions at $\sqrt{s_{\mathrm{NN}}} = 200$…

高能物理 - 唯象学 · 物理学 2024-07-11 P. Sinha , V. Bairathi , K. Gopal , C. Jena , S. Kabana

Based on the deformed nucleon distributions obtained from the constrained Skyrme-Hartree-Fock-Bogolyubov calculation using different nuclear symmetry energies, we have investigated the effects of the neutron skin and the collision geometry…

核理论 · 物理学 2023-03-29 Lu-Meng Liu , Jun Xu , Guang-Xiong Peng

Several topics concerning nuclear structure and electromagnetic interactions of heavy nuclei are reviewed. These comprehend the deformed single-particle shell model, nuclear collective motion, symmetry breaking and approximate symmetry…

核理论 · 物理学 2024-06-12 Alejandro Restrepo-Giraldo

We have calculated the masses, deformations, and other properties of 8979 nuclei ranging from oxygen-16 to Z = 136, A = 339 and extending from the proton drip line to the neutron drip line on the basis of the 1992 version of the…

核理论 · 物理学 2007-05-23 J. Rayford Nix , Peter Moller