In-Medium Effective Axial-Vector Coupling Constant

Details In-Medium Effective Axial-Vector Coupling Constant In-Medium Effective Axial-Vector Coupling Constant

1997-04-16

arxiv.org/abs/nucl-th/9704033v2

Phys.Lett. B409 (1997) 26-32

Physics

Nuclear Physics

Nuclear Theory

Some errors in the References are fixed. LaTeX file with four eps files. 10 pages

Scientific paper

10.1016/S0370-2693(97)00880-0

The axial-vector coupling constant in nuclear medium is systematically studied using chiral perturbation theory. For normal nuclear matter, the first non-trivial corrections are estimated based on the independent particle approximation taking into account nuclear correlations in nuclear medium. The one-pion-exchange (OPE) two-body interactions turn out to enhance the coupling constant by $\delta g_A/g_A\simeq (0.09 \sim 0.15)$. The role of the four-nucleon contact interaction, whose low-energy constants are yet to be determined, is analyzed in connection with the empirical quenching factor of $\delta g_A/g_A\simeq -0.2$ in the presence of the nuclear short-range correlation. Conventional approaches are discussed in the light of our result.

Affiliated with

Also associated with

No associations

Rating

In-Medium Effective Axial-Vector Coupling Constant does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with In-Medium Effective Axial-Vector Coupling Constant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-Medium Effective Axial-Vector Coupling Constant will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-279921