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Isospin Dependence of 1S0 Proton and Neutron Superfluidity in Asymmetric Nuclear Matter

W. Zuo·G. C. Lu
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Abstract

We investigate the $^1S_0$ neutron and proton superfluidity in isospin asymmetric nuclear matter. We have concentrated on the isospin dependence of the pairing gaps and the effect of a microscopic three-body force. It is found that as the isospin asymmetry goes higher, the neutron $^1S_0$ superfluid phase shrinks gradually to a smaller density domain, while the proton one extends rapidly to a much wider density domain. The three-body force turns out to weaken the neutron $^1S_0$ superfluidity slightly, but it suppresses strongly the proton $^1S_0$ superfluidity at high densities in nuclear matter with large isospin asymmetry.

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W. Zuo, G. C. Lu. 2006-10-27. Isospin Dependence of 1S0 Proton and Neutron Superfluidity in Asymmetric Nuclear Matter. https://doi.org/10.1103/physrevc.75.045806

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