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Nuclear structure effects are essential for describing hyperfine splittings from high-precision atomic spectroscopy measurements. These effects are often parametrized by the effective or elastic Zemach radii, with their difference poorly…

核理论 · 物理学 2025-09-03 Yilong Yang , Evgeny Epelbaum , Chen Ji , Pengwei Zhao

We report on our calculations of differential hyperfine anomalies in the nuclear single-particle model for a number of atoms and ions of interest for studies of fundamental symmetries violations. Comparison with available experimental data…

原子物理 · 物理学 2021-08-31 B. M. Roberts , J. S. M. Ginges

Hyperfine splitting in Bi$^{82+}$ and Pb$^{81+}$ ions was calculated using continuum RPA approach with effective residual forces. To fix the parameters of the theory the nuclear magnetic dipole moments of two one- particle and two one-hole…

核理论 · 物理学 2009-11-07 V. F. Dmitriev , R. A. Sen'kov

The radial basis function (RBF) approach is applied in predicting nuclear masses for 8 widely used nuclear mass models, ranging from macroscopic-microscopic to microscopic types. A significantly improved accuracy in computing nuclear masses…

核理论 · 物理学 2013-09-03 Z. M. Niu , Z. L. Zhu , Y. F. Niu , B. H. Sun , T. H. Heng , J. Y. Guo

The study of highly charged electronic and muonic hydrogen-like ions, provides an intriguing way to probe the internal structure of their atomic nuclei. In this work, we use nuclear structure calculations to accurately calculate the…

Nucleon momentum distributions at various densities and isospin-asymmetries for nuclear matter are investigated systematically within the extended Bruecker-Hartree-Fock approach.The shapes of the normalized momentum distributions varying…

核理论 · 物理学 2019-11-27 Z. X. Yang , X. L. Shang , G. C. Yong , W. Zuo , Y. Gao

Calculations of the magnetic hyperfine structure rely on the input of nuclear properties -- nuclear magnetic moments and nuclear magnetization distributions -- as well as quantum electrodynamic (QED) radiative corrections for high-accuracy…

原子物理 · 物理学 2018-09-19 J. S. M. Ginges , A. V. Volotka

Backward elastic electron scattering from odd-A nuclear targets is characterized by magnetic form factors containing precise information on the nuclear structure. We study the sensitivity of the magnetic form factors to structural effects…

核理论 · 物理学 2021-01-13 B. Hernandez , P. Sarriguren , O. Moreno , E. Moya de Guerra , D. N. Kadrev , A. N. Antonov

In heavy-ion phenomenology, the nucleon density distribution in colliding nuclei is commonly described by a two-parameter Woods-Saxon (WS) distribution. However, this approach overlooks the detailed radial structure in the density…

核理论 · 物理学 2024-10-10 Zhengxi Yan , Jun Xu , Jiangyong Jia

Nucleon momentum distribution (NMD), particularly its high-momentum components, is essential for understanding the nucleon--nucleon ($ NN $) correlations in nuclei. Herein, we develop the studies of NMD of $^{56}\text{Fe}$ from the axially…

核理论 · 物理学 2021-08-30 Xuezhi Wang , Qinglin Niu , Jinjuan Zhang , Mengjiao Lyu , Jian Liu , Chang Xu , Zhongzhou Ren

The distribution of electric charge in atomic nuclei is fundamental to our understanding of the complex nuclear dynamics and a quintessential observable to validate nuclear structure models. We explore a novel approach that combines…

核理论 · 物理学 2016-10-19 Raditya Utama , Wei-Chia Chen , Jorge Piekarewicz

The information about sizes and nuclear density distributions in unstable (radioactive) nuclei is usually extracted from the data on interaction of radioactive nuclear beams with a nuclear target. We show that in the case of nucleus-nucleus…

核理论 · 物理学 2011-01-26 C. Merino , I. S. Novikov , Yu. M. Shabelski

We analyze the nuclear matter correlation properties in terms of the pair correlation function. To this aim we systematically compare the results for the variational method in the Lowest Order Constrained Variational (LOCV) approximation…

核理论 · 物理学 2015-06-11 M. Baldo , H. R. Moshfegh

Atomic electrons are sensitive to the properties of the nucleus they are bound to, such as nuclear mass, charge distribution, spin, magnetization distribution, or even excited level scheme. These nuclear parameters are reflected in the…

原子物理 · 物理学 2011-06-17 Adriana Pálffy

Big-bang nucleosynthesis (BBN) is valuable as a means to constrain the physics of the early universe and it is the only probe of the radiation-dominated epoch. A fundamental assumption in BBN is that the nuclear velocity distributions obey…

核理论 · 物理学 2020-06-29 Nishanth Sasankan , Atul Kedia , Motohiko Kusakabe , Grant J Mathews

We have systematically investigated the ground-state hyperfine structure for alkali-metal atoms ^{87}Rb, ^{133}Cs, ^{211}Fr and alkali-metal-like ions ^{135}Ba^+, ^{225}Ra^+, which are of particular interest for parity violation studies.…

原子物理 · 物理学 2017-12-20 J. S. M. Ginges , A. V. Volotka , S. Fritzsche

Determination of nuclear moments for many nuclei relies on the computation of hyperfine constants, with theoretical uncertainties directly affecting the resulting uncertainties of the nuclear moments. In this work we improve the precision…

原子物理 · 物理学 2022-01-05 S. G. Porsev , M. S. Safronova , M. G. Kozlov

Covariant density functional theory is used to study the effect of strong magnetic fields, up to the limit predicted for neutron stars (for magnetars $B \approx10^{18}$G), on nuclear structure. All new terms in the equation of motion…

核理论 · 物理学 2015-05-28 Daniel Pena Arteaga , Marcella Grasso , Elias Khan , Peter Ring

A simple method is presented to evaluate the effects of short-range correlations on the momentum distribution of nucleons in nuclear matter within the framework of the Green's function approach. The method provides a very efficient…

核理论 · 物理学 2008-11-26 H. Müther , G. Knehr , A. Polls

There is renewed interest in studies of muonic atoms, which may provide detailed information on nuclear structure. A major limiting factor in the interpretation of measurements is the nuclear polarization contribution. We propose a method…

原子物理 · 物理学 2025-06-25 J. Vandeleur , G. Sanamyan , O. R. Smits , I. A. Valuev , N. S. Oreshkina , J. S. M. Ginges