1996/12/09 by Volker Keiner, V. Keiner, Keiner, Volker
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #Physics of Superconductivity and Magnetism #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9612018
9 pages, LaTeX, 13 figures, uses sprocl.sty (included) from World Scientific; talk given at 'Diquarks 3', Torino, Oct. 28-30, 1996; to appear in the proceedings
arxiv created 1996/12/09 · openalex publication_date 1996/12/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We develop a 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 space- and timelike electromagnetic form factors of the nucleon are calculated in the Mandelstam formalism for squared momentum transfers up to 3 (GeV/c)2 above threshold. The model is applied also to the Delta(3/2).