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.

arXiv commentPublished version, Physics Letters B743 (2015) 408

References in corpus (23)

• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Isospin Physics in Heavy-Ion Collisions at Intermediate Energies
• The information content of a new observable: the case of the nuclear neutron skin
• Constraining the neutron-proton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density
• Effects of momentum-dependent symmetry potential on heavy-ion collisions induced by neutron-rich nuclei
• Nuclear symmetry energy and its density slope at normal density extracted from global nucleon optical potentials
• Momentum dependence of the symmetry potential and nuclear reactions induced by neutron-rich nuclei at RIA
• Modelization of the EOS
• Isospin splitting of the nucleon mean field
• Momentum, Density, and Isospin dependence of the Symmetric and Asymmetric Nuclear Matter Properties
• Constraining the neutron-proton effective mass splitting in neutron-rich matter
• Transport properties of isospin effective mass splitting
• Constraints on symmetry energy and nucleon effective mass splitting with Heavy Ion Collisions
• Fast nucleon emission as a probe of the isospin momentum dependence
• Single-nucleon potential decomposition of the nuclear symmetry energy
• Accurate calibration of relativistic mean-field models: correlating observables and providing meaningful theoretical uncertainties
• Analytical relations between nuclear symmetry energy and single-nucleon potentials in isospin asymmetric nuclear matter
• Transverse emission of isospin ratios as a probe of high-density symmetry energy in isotopic nuclear reactions
• Effective mass splitting of neutron and proton and isospin emission in heavy-ion collisions
• An isospin dependent global nucleon-nucleus optical model at intermediate energies
• Extracting the nuclear symmetry potential and energy from neutron-nucleus scattering data
• Effect of splitting of the neutron and proton effective mass on nuclear symmetry energy at finite temperature
• Isospin dependent global neutron-nucleus optical model potential

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