A covariant diquark-quark model of the nucleon in the Salpeter approach

Preprint

5 March 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9603226

Abstract

We develop a rather simple, formally covariant quark-diquark model of the nucleon. The nucleon is treated as a bound state of a constituent quark and a diquark interacting via a quark exchange. We include both scalar and axial-vector diquarks. The underlying Bethe-Salpeter equation is transformed into a pair of coupled Salpeter equations. The electromagnetic form factors of the nucleon are calculated in the Mandelstam formalism. We obtain a very good description of all electromagnetic form factors for momentum transfers up to -3 (GeV/c)^2.

Keywords

ELECTROMAGNETIC FORM FACTORS
COVARIANT DIQUARK QUARK
QUARK DIQUARK MODEL
QUARK MODEL
SALPETER
NUCLEON

All Related Versions

Version 1, 1996-03-05, ArXiv
Published version: Physical Review C, 54 (6), 3232.

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