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We present the simplest nuclear energy density functional (NEDF) to date, determined by only 4 significant phenomenological parameters, yet capable of fitting measured nuclear masses with better accuracy than the Bethe-Weizs\"acker mass…

核理论 · 物理学 2015-07-01 Aurel Bulgac , Michael McNeil Forbes , Shi Jin

A new method for determining the hyperfine anomaly, without knowing the nuclear magnetic moment, is used for the first time on a series of unstable isotopes. The relative large number of experimental data in Eu makes it possible to…

原子物理 · 物理学 2009-05-01 J. R. Persson

Brueckner-Hartree-Fock theory allows to derive the $G$-matrix as an effective interaction between nucleons in the nuclear medium. It depends on the center of mass momentum $\bm{P}$ of the two particles and on the two relative momenta…

核理论 · 物理学 2018-11-14 Hui Tong , Xiu-Lei Ren , Peter Ring , Shi-Hang Shen , Si-Bo Wang , Jie Meng

The amplitude of the primordial magnetic field (PMF) is constrained from observational limits on primordial nuclear abundances. Within this constraint, it is possible that nuclear motion is regulated by Coulomb scattering with electrons and…

宇宙学与河外天体物理 · 物理学 2021-12-30 Motohiko Kusakabe , Atul Kedia , Grant J. Mathews , Nishanth Sasankan

Measurements of atomic transitions in different isotopes offer key information on the nuclear charge radius. The anticipated high-precision experimental techniques, augmented by atomic calculations, will soon enable extraction of the…

核理论 · 物理学 2020-02-12 P. -G. Reinhard , W. Nazarewicz , R. F. Garcia Ruiz

The field of fast radio bursts (FRBs) has entered the age of fine characterization as observational results from different radio telescopes become more and more abundant. The large FRB sample is suitable for a statistical study. There is an…

高能天体物理现象 · 物理学 2023-12-25 Di Xiao , Zi-Gao Dai , Xue-Feng Wu

Recent studies based on the relativistic mean field (RMF) model found certain nuclear empirical parameters, in particular the nucleon effective mass, to be strongly correlated with observable properties of Neutron Stars (NSs), such as the…

高能天体物理现象 · 物理学 2026-02-09 Rajesh Maiti , Debarati Chatterjee

Matter effects on the mixing of the neutrinos mass eigenstates, also know as the Mikheyev-Smirnov-Wolfenstein effect, seem to be well established in describing the propagation of the neutrino from the source to detecting devices. These…

高能物理 - 唯象学 · 物理学 2018-09-13 Mihai Horoi

The radii of nucleon distribution, bulk density, and neutron skin in nuclei beyond the \beta-stability line are studied within the direct variational method. We evaluate the partial equation of state of finite nuclei and demonstrate that…

核理论 · 物理学 2012-03-22 V. M. Kolomietz , S. V. Lukyanov , A. I. Sanzhur

We study the propagation of polarization light through the magnetosphere of neutron stars. At intermediate frequencies (the optical through the infrared), both the birefringence induced by the plasma and by quantumelectrodynamics influence…

天体物理学 · 物理学 2009-11-10 R. M. Shannon , Jeremy S. Heyl

The momentum and isospin dependence of the single-particle potential for the in-medium nucleon are the key quantities in the Relativistic Brueckner-Hartree-Fock (RBHF) theory. It depends on how to extract the scalar and the vector…

核理论 · 物理学 2022-10-28 Hui Tong , Chencan Wang , Sibo Wang

As a follow up of our work on the electromagnetic four-current, we study for the first time the relativistic polarization and magnetization spatial distributions inside a spin-$\frac{1}{2}$ target within the quantum phase-space approach.…

高能物理 - 唯象学 · 物理学 2023-05-09 Yi Chen , Cédric Lorcé

The synthesis of molecular magnets has undergone rapid progress in recent years. Each of the identical molecular units can contain as few as two and up to several dozens of paramagnetic ions (spins). Although these materials appear as…

强关联电子 · 物理学 2009-11-11 J. Schnack

Magnetars are neutron stars endowed with surface magnetic fields of the order of $10^{14}-10^{15}$~G, and with presumably much stronger fields in their interior. As a result of Landau quantization of electron motion, the neutron-drip…

高能天体物理现象 · 物理学 2016-07-21 N. Chamel , Y. D. Mutafchieva , Zh. K. Stoyanov , L. M. Mihailov , R. L. Pavlov

With the help of radial basis function (RBF) and the Garvey-Kelson relation, the accuracy and predictive power of some global nuclear mass models are significantly improved. The rms deviation between predictions from four models and 2149…

核理论 · 物理学 2011-11-18 Ning Wang , Min Liu

Based on the point-coupling density functional, the time-odd deformed relativistic Hartree-Bogoliubov theory in continuum (TODRHBc) is developed. Then the effects of nuclear magnetism on halo phenomenon are explored by taking the…

核理论 · 物理学 2024-03-07 Cong Pan , Kaiyuan Zhang , Shuangquan Zhang

We review models for the nucleation of magnetisation reversal, i.e. the formation of a region of reversed magnetisation in an initially magnetically saturated system. For small particles models for collective reversal, either uniform…

其他凝聚态物理 · 物理学 2016-08-16 Jan Vogel , Jérôme Moritz , Olivier Fruchart

A relativistic microscopic optical model potential for nucleon-nucleus scattering is developed based on the \emph{ab initio} relativistic Brueckner-Hartree-Fock (RBHF) theory with the improved local density approximation, which is…

核理论 · 物理学 2024-06-13 Pianpian Qin , Sibo Wang , Hui Tong , Qiang Zhao , Chencan Wang , Z. P. Li , Peter Ring

New high-precision microwave spectroscopic measurements and analysis of rotational energy level transitions in the ground vibronic state of the open-shell BaF molecule are reported with the purpose of contributing to studies of physics…

原子物理 · 物理学 2026-04-08 Alex Preston , Graceson Aufderheide , Will Ballard , Richard Mawhorter , Jens-Uwe Grabow

Atomic magnetometers are highly sensitive detectors of magnetic fields that monitor the evolution of the macroscopic magnetic moment of atomic vapors, and opening new applications in biological, physical, and chemical science. However, the…

量子物理 · 物理学 2022-03-01 Min Jiang , Wenjie Xu , Qing Li , Ze Wu , Dieter Suter , Xinhua Peng