Soft breathing modes in neutron-rich nuclei with the subtracted second random-phase approximation

Gambacurta D.; Grasso M.; Sorlin O.

首页> 外文期刊>Physical review, C >Soft breathing modes in neutron-rich nuclei with the subtracted second random-phase approximation

【24h】

Soft breathing modes in neutron-rich nuclei with the subtracted second random-phase approximation

机译：

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

We analyze the isoscalar response related to breathing modes with particular attention being paid to low-lying excitations in neutron-rich nuclei. We use the subtracted second random-phase approximation (SSRPA) to describe microscopically the response. By increasing the neutron excess, we study the evolution of the response in Ca isotopes going from Ca-40 to Ca-48 and to Ca-60 as well as in N = 20 isotones going from Ca-40 to S-36 and to Si-34. Finally, the case of Ni-68 is investigated. We predict soft monopole modes in neutron-rich nuclei which are driven by neutron excitations. At variance with dipole pygmy modes, these neutron excitations are not only strongly dominant at the surface of the nucleus but over its entire volume. The effect of the mixing with two particle-two hole configurations induced by the SSRPA model is analyzed. The properties of such soft neutron modes are investigated in terms of their excitation energies, transition densities and wave-function components. Their collectivity is also discussed as a function of the isospin asymmetry and of the mass of the nucleus. The link between such low-energy compression modes and a compressibility modulus introduced for neutron-rich infinite matter is finally studied.

著录项

来源
《Physical review, C》 |2019年第1期|共10页
作者
Gambacurta D.; Grasso M.; Sorlin O.;
展开▼
作者单位

Horia Hulubei Natl Inst Phys & Nucl Engn, ELI NP, 30 Reactorului St, RO-077125 Magurele, Jud Ilfov, Romania;

Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, CNRS IN2P3, F-91406 Orsay, France;

CEA, GANIL, DSM CNRS, IN2P3, BP 55027, F-14076 Caen 5, France;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类原子核物理学、高能物理学;
关键词

相似文献

外文文献
中文文献

1. Natural virtual orbitals for the GW method in the random-phase approximation and beyond [J] . Monzel Laurenz, Holzer Christof, Klopper Wim The Journal of Chemical Physics . 2023,第14期

机译：Natural virtual orbitals for the GW method in the random-phase approximation and beyond
2. New Machine Learning Study Findings Have Been Reported from University of Ghent (Accurately Determining the Phase Transition Temperature of Cspbi3 Via Random-phase Approximation Calculations and Phase-transferable Machine Learning Potentials) [J] . Robotics & Machine Learning Daily News . 2022,第8期

机译：New Machine Learning Study Findings Have Been Reported from University of Ghent (Accurately Determining the Phase Transition Temperature of Cspbi3 Via Random-phase Approximation Calculations and Phase-transferable Machine Learning Potentials)
3. Accurately Determining the Phase Transition Temperature of CsPbl3 via Random-Phase Approximation Calculations and Phase-Transferable Machine Learning Potentials [J] . Tom Braeckevelt, Ruben Goeminne, Sander Vandenhaute Chemistry of Materials: A Publication of the American Chemistry Society . 2022,第19期

机译：Accurately Determining the Phase Transition Temperature of CsPbl3 via Random-Phase Approximation Calculations and Phase-Transferable Machine Learning Potentials
4. Shell Model Monte Carlo Studies of $\gamma$-Soft Nuclei [O] . Alhassid, Y., Bertsch, G. F., Dean, D. J., 1995

机译：壳模型蒙特卡罗研究$ \ gamma $ -soft Nuclei
5. Stability of semidiscrete approximations for hyperbolic initial-boundary-value problems: Stationary modes [R] . Warming, Robert F., Beam, Richard M. 1988

机译：stability of semidiscrete approximations for hyperbolic initial-boundary-value problems: stationary modes

Soft breathing modes in neutron-rich nuclei with the subtracted second random-phase approximation

摘要

著录项

相似文献

相关主题

期刊订阅