Nuclear mass radius and pressure in the Skyrme model

2023/12/20 by Alberto García Martín-Caro, Martín-Caro, Alberto García, Miguel Huidobro +3 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #Nuclear physics research studies #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2312.12984

openalex publication_date 2023/12/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We compute the mass radius, scalar radius, tensor radius, baryon number radius and mechanical radius of nuclei with baryon number B=1,2,3,4,5,6,7,8,32,108 in the Skyrme model. The relations between these radii and the nuclear gravitational form factors are investigated. We also compute the `pressure' distribution and find that it is negative in the core region for all the nuclei with B>1. This suggests that the way mechanical stability is achieved in nuclei is qualitatively different than in the nucleon.

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• Mechanical form factors and densities of non-relativistic fermions

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