N*(1535) electroproduction at high Q2

Details N*(1535) electroproduction at high Q2 N*(1535) electroproduction at high Q2

2011-08-15

arxiv.org/abs/1108.3017v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the proceedings of the 8th International Workshop on the Physics of Excited Nucleons (NSTAR2011), Jefferson La

Scientific paper

A covariant spectator quark model is applied to study the gamma N -> N*(1535) reaction in the large Q2 region. Starting from the relation between the nucleon and N*(1535) systems, the N*(1535) valence quark wave function is determined without the addition of any parameters. The model is then used to calculate the gamma N -> N*(1535) transition form factors. A very interesting, useful relation between the A12 and S12 helicity amplitudes for Q2 > GeV^2, is also derived.

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