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The Quenching of the Axial Coupling in Nuclear and Neutron-Star Matter

G. W. Carter·M. Prakash
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Abstract

Using a chirally invariant effective Lagrangian, we calculate the density and isospin dependences of the in-medium axial coupling, $g_A^*$, in spatially uniform matter present in core collapse supernovae and neutron stars. The quenching of $g_A^*$ with density in matter with different proton fractions is found to be similar. However, our results suggest that the quenching of the nucleon's $g_A^*$ in matter with hyperons is likely to be significantly greater than in matter with nucleons only.

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G. W. Carter, M. Prakash. 2001-09-26. The Quenching of the Axial Coupling in Nuclear and Neutron-Star Matter. https://doi.org/10.1016/s0370-2693(01)01452-6

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