Neutron-proton effective mass splitting in neutron-rich matter at normal density from analyzing nucleon-nucleus scattering data within an isospin dependent optical model

Abstract

The neutron-proton effective $k$-mass splitting in asymmetric nucleonic matter of isospin asymmetry $\delta$ and normal density is found to be $m_{n-p}^{\ast }\equiv (m_n^{\ast }-m_p^{\ast })/m=(0.41\pm 0.15)\delta$ from analyzing globally 1088 sets of reaction and angular differential cross sections of proton elastic scattering on 130 targets with beam energies from 0.783 MeV to 200 MeV, and 1161 sets of data of neutron elastic scattering on 104 targets with beam energies from 0.05 MeV to 200 MeV within an isospin dependent non-relativistic optical potential model. It sets a useful reference for testing model predictions on the momentum dependence of the nucleon isovector potential necessary for understanding novel structures and reactions of rare isotopes.

Published version, Physics Letters B743 (2015) 408

References in corpus (1)

• Nuclear symmetry energy and its density slope at normal density extracted from global nucleon optical potentials

Cited by in corpus (22)

• Towards Understanding Astrophysical Effects of Nuclear Symmetry Energy
• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• Symmetry Energy III: Isovector Skins
• Isovector properties of the Gogny interaction
• Interdependence of different symmetry energy elements
• Nucleonic metamodelling in light of multimessenger, PREX-II and CREX data
• Tides in merging neutron stars: Consistency of the GW170817 event with experimental data on finite nuclei
• Revisit of the neutron/proton ratio puzzle in intermediate-energy heavy-ion collisions
• Effect of isovector scalar meson on equation of state of dense matter within relativistic mean field model
• Neutron-proton effective mass splitting in neutron-rich matter and its impacts on nuclear reactions
• Nuclear matter fourth-order symmetry energy in non-relativistic mean-field models
• Symmetry energy effects on the properties of hybrid stars
• Nucleus giant resonances from an improved isospin-dependent Boltzmann-Uehling-Uhlenbeck transport approach
• Neutron-proton effective mass splitting in neutron-rich matter
• Isospin dependence of nucleon effective masses in neutron-rich matter
• Equation of State of Neutron-Rich Matter in $d$-Dimensions
• The nuclear symmetry energy from relativistic Brueckner-Hartree-Fock model
• Proton-proton momentum correlation function as a probe of the high momentum tail of the nucleon momentum distribution
• Nucleon Short-Range Correlations and High-Momentum Dynamics: Implications on the Equation of State of Dense Matter
• Constraining neutron-proton effective mass splitting through nuclear giant dipole resonance within transport approach
• Analysis of critical parameters for nonrelativistic models in symmetric nuclear matter
• Phase-space excluded-volume approach for light clusters in nuclear medium