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The neutron skin of nuclei is an important fundamental property, but its accurate measurement faces many challenges. Inspired by charge symmetry of nuclear forces, the neutron skin of a neutron-rich nucleus is related to the difference…

We study relationships between the neutron-rich skin of a heavy nucleus and the properties of neutron-star crusts. Relativistic effective field theories with a thicker neutron skin in $^{208}$Pb have a larger electron fraction and a lower…

天体物理学 · 物理学 2009-10-31 C. J. Horowitz , J. Piekarewicz

The neutron skin thickness in neutron-rich nuclei has traditionally been measured using elastic fixed target electron-nucleus scattering since the 1970s. In this paper, we propose a novel probe of the neutron skin thickness through deep…

高能物理 - 唯象学 · 物理学 2025-06-13 Shan-Liang Zhang , Enke Wang , Xin-Nian Wang , Hongxi Xing

{ {\bf Background:} Knowing the difference between the neutron and proton densities of nuclei is a significant topic because of its importance for understanding neutron star structures and cooling mechanisms. The coherent-nuclear…

核理论 · 物理学 2019-10-23 Gerald A. Miller

Neutron skin is an exotic phenomena in unstable nuclei. The various effects in nuclear reactions caused by the neutron skin and also its relation with the properties of nuclear structure are reviewed in this article. Based on numerous…

核理论 · 物理学 2024-09-12 Meng-Qi Ding , De-Qing Fang , Yu-Gang Ma

We present predictions for proton skins based on isospin-asymmetric equations of state derived microscopically from high-precision chiral few-nucleon interactions. Moreover, we investigate the relation between the neutron skin of a nucleus…

核理论 · 物理学 2017-12-19 Francesca Sammarruca

Background: The neutron skin of a heavy nucleus as well as many neutron-star properties are highly sensitive to the poorly constrained density dependence of the symmetry energy. Purpose: To provide for the first time meaningful theoretical…

核理论 · 物理学 2012-07-12 F. J. Fattoyev , J. Piekarewicz

To improve the constraints of symmetry energy at subsaturation density, measuring and accumulating more neutron skin data for neutron rich unstable nuclei is naturally required. Aiming to probe the neutron skin of unstable nuclei by using…

核理论 · 物理学 2023-04-25 Junping Yang , Xiang Chen , Ying Cui , Zhuxia Li , Yingxun Zhang

The correlation between the charge radii differences in mirror nuclei pairs and the neutron skin thickness has been studied with the so-called finite range simple effective interaction over a wide mass region. The so far precisely measured…

核理论 · 物理学 2023-08-02 P. Bano , S. P. Pattnaik , M. Centelles , X. Viñas , T. R. Routray

Including nucleon-nucleon correlations due to both Fermi statistics and nuclear forces, we have developed a general formalism for calculating the neutral-current neutrino-nucleon opacities in nuclear matter. We derive corrections to the…

天体物理学 · 物理学 2008-11-26 Adam Burrows , R. F. Sawyer

A new method is proposed to deduce the neutron radii of neutron-rich nuclei. This method requires measuring the reaction cross sections of both the neutron-rich nucleus and its stable isotope at the same energy on a proton target. Using…

核理论 · 物理学 2020-04-22 I. A. M. Abdul-Magead , Eman Hamza , Badawy Abu-Ibrahim

Nucleon spin fluctuations in a dense medium reduce the ``naive'' values of weak interaction rates (neutrino opacities, neutrino emissivities). We extend previous studies of this effect to the degenerate case which is appropriate for neutron…

天体物理学 · 物理学 2014-10-13 Georg Raffelt , Thomas Strobel

Foster {\it et al.} measured total neutron cross sections $\sigma_{\rm T}$ of n+$^{208}$Pb scattering at $14.137$MeV. Carlson {\it et al.} measured $\sigma_{\rm R}$ for $p$+$^{48}$Ca scattering in $23 \text{--} 48$MeV. Tanaka {\it et al.}…

核实验 · 物理学 2024-12-12 Shingo Tagami , Takayuki Myo , Masanobu Yahiro

We investigate the influences of the nuclear composition on the weak interaction rates of heavy nuclei during the core collapse of massive stars. The nuclear abundances in nuclear statistical equilibrium (NSE) are calculated by some…

高能天体物理现象 · 物理学 2017-03-21 Shun Furusawa , Hiroki Nagakura , Kohsuke Sumiyoshi , Chinami Kato , Shoichi Yamada

Emergent bulk properties of matter governed by the strong nuclear force give rise to physical phenomena across vastly different scales, ranging from the shape of atomic nuclei to the masses and radii of neutron stars. They can be accessed…

核理论 · 物理学 2023-12-04 Giuliano Giacalone , Govert Nijs , Wilke van der Schee

Radii of charge and neutron distributions are fundamental nuclear properties. They depend on both nuclear interaction parameters related to the equation of state of infinite nuclear matter and on quantal shell effects, which are strongly…

核理论 · 物理学 2016-08-17 P. -G. Reinhard , W. Nazarewicz

We report on our studies of the neutron-skin effects in high-$p_{\mathrm{T}}$ observables at the LHC. We study the impact of the neutron-skin effect on the centrality dependence of inclusive direct photon, high-$p_{\mathrm{T}}$ hadron and…

高能物理 - 唯象学 · 物理学 2016-06-30 Ilkka Helenius , Hannu Paukkunen , Kari J. Eskola

Nuclear weak rates in stellar environments are obtained by shell-model calculations including Gamow-Teller (GT) and spin-dipole transitions, and applied to nuclear weak processes in stars. The important roles of accurate weak rates for the…

核理论 · 物理学 2022-06-24 Toshio Suzuki

We address two questions pertaining to the uniqueness and usefulness of a new observable: (i) Considering the current theoretical knowledge, what novel information does new measurement bring in? (ii) How can new data reduce uncertainties of…

核理论 · 物理学 2014-11-20 P. -G. Reinhard , W. Nazarewicz

We investigate the effect of different relativistic spin couplings of constituent quarks on nucleon electroweak properties. Within each quark spin coupling scheme the correlations between static electroweak observables are found to be…

核理论 · 物理学 2011-07-19 E. F. Suisso , W. R. B. de Araujo , T. Frederico , M. Beyer , H. J. Weber