N*(1535) electroproduction at high Q2
High Energy Physics - Phenomenology
2012-04-30 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
Abstract
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.
Keywords
Cite
@article{arxiv.1108.3017,
title = {N*(1535) electroproduction at high Q2},
author = {G. Ramalho and M. T. Pena and K. Tsushima},
journal= {arXiv preprint arXiv:1108.3017},
year = {2012}
}
Comments
Contribution to the proceedings of the 8th International Workshop on the Physics of Excited Nucleons (NSTAR2011), Jefferson Lab, Newport News, VA, USA, May 17-20, 2011