Medium modification of the nucleon axial form factor

Details Medium modification of the nucleon axial form factor Medium modification of the nucleon axial form factor

2001-12-03

arxiv.org/abs/nucl-th/0112001v1

Physics

Nuclear Physics

Nuclear Theory

14 pages including 3 figures

Scientific paper

We study the modification of the nucleon axial form factor in nuclear matter. The internal quark substructure of the nucleon is self-consistently described by the quark meson coupling model. We find that the axial form factor of the bound nucleon is quenched considerably from that of the free nucleon. The axial vector coupling constant is reduced by roughly 10% at normal nuclear matter density and the axial form factor varies within 8% for moderate momentum transfer.

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