6533b85bfe1ef96bd12bacac

RESEARCH PRODUCT

Nucleon-to-delta axial transition form factors in relativistic baryon chiral perturbation theory

M. J. Vicente VacasL. Alvarez-rusoLi-sheng GengJ. Martin Camalich

subject

PhysicsQuarkNuclear and High Energy PhysicsParticle physicsChiral perturbation theoryQuark modelNuclear TheoryHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaBaryonHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Gauge theoryNeutrinoNucleonGauge symmetry

description

We report a theoretical study of the axial Nucleon to Delta(1232) ($N\to\Delta$) transition form factors up to one-loop order in relativistic baryon chiral perturbation theory. We adopt a formalism in which the $\Delta$ couplings obey the spin-3/2 gauge symmetry and, therefore, decouple the unphysical spin-1/2 fields. We compare the results with phenomenological form factors obtained from neutrino bubble chamber data and in quark models.

yearjournalcountryeditionlanguage
2008-01-29
10.1103/physrevd.78.014011http://hdl.handle.net/10550/39482