Covariant diquark-quark model of the nucleon in the Salpeter approach
- 1 December 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 54 (6) , 3232-3239
- https://doi.org/10.1103/physrevc.54.3232
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)^2Keywords
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