6533b859fe1ef96bd12b81a0

RESEARCH PRODUCT

Light baryons and their electromagnetic interactions in the covariant constituent quark model

Valery E. LyubovitskijMikhail A. IvanovPietro SantorelliThomas GutscheJürgen G. Körner

subject

Nuclear and High Energy PhysicsParticle physicsMesonHigh Energy Physics::LatticeNuclear TheoryConstituent quarkDown quarkFOS: Physical sciencesPROTONBottom quarkHigh Energy Physics - Phenomenology (hep-ph)Nuclear ExperimentPhysicsCOMPOSITE PARTICLESELASTIC SCATTERINGPOLARIZATION TRANSFERHigh Energy Physics::PhenomenologyHyperonRELATIVISTIC 3-QUARK MODELMAGNETIC FORM-FACTORDEUTERONBaryonHigh Energy Physics - PhenomenologyQuantum electrodynamicsHEAVY BARYONSUp quarkNEUTRONHigh Energy Physics::ExperimentSQUARED 4-MOMENTUM TRANSFERSNucleon

description

We extend the confined covariant constituent quark model that was previously developed by us for mesons to the baryon sector. In our numerical calculation we use the same values for the constituent quark masses and the infrared cutoff as have been previously used in the meson sector. In a first application we describe the static properties of the proton and neutron, and the $\Lambda$-hyperon (magnetic moments and charge radii) and the behavior of the nucleon form factors at low momentum transfers. We discuss in some detail the conservation of gauge invariance of the electromagnetic transition matrix elements in the presence of a nonlocal coupling of the baryons to the three constituent quark fields.

yearjournalcountryeditionlanguage
2012-07-30
10.1103/physrevd.86.074013http://arxiv.org/abs/1207.7052