N-Delta axial transition form factors

Details N-Delta axial transition form factors N-Delta axial transition form factors

2002-11-19

arxiv.org/abs/hep-ph/0211293v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contributed talk at the Mini-Workshop "Quarks and Hadrons", July 7-14, Bled, Slovenia, 12 pages LaTeX, to be published as Bled

Scientific paper

We review some basic properties of the N-Delta transition axial amplitudes and relate them to the strong pi-N-Delta form-factor. In models with the pion cloud we derive a set of constraints on the pion wave function which guaranty the correct behaviour of the amplitudes in the vicinity of the pion pole. Corrections due to the spurious center-of-mass motion are calculated to the leading order in the inverse baryon mass. We give explicit expressions for the amplitudes in the Cloudy Bag Model and show that they rather strongly underestimate the experimental values.

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