Consistent off-shell $πN N$ vertex and nucleon self-energy

Details Consistent off-shell $πN N$ vertex and nucleon self-energy Consistent off-shell $πN N$ vertex and nucleon self-energy

1998-07-30

arxiv.org/abs/nucl-th/9807077v2

Phys.Rev. C59 (1999) 1070-1080

Physics

Nuclear Physics

Nuclear Theory

23 pages, 7 figures, REVTeX, submitted to Phys. Rev. C, replaced with corrected version

Scientific paper

10.1103/PhysRevC.59.1070

We present a consistent calculation of half-off-shell form factors in the
pion-nucleon vertex and the nucleon self-energy. Numerical results are
presented. Near the on-shell point the pion-nucleon vertex is dominated by the
pseudovector coupling, while at large nucleon invariant masses we find a
sizable pseudoscalar admixture.

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