Generalized Electric Polarizability of the Proton from Skyrme Model

Details Generalized Electric Polarizability of the Proton from Skyrme Model Generalized Electric Polarizability of the Proton from Skyrme Model

1997-04-23

arxiv.org/abs/hep-ph/9704381v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages of LaTeX file, including one epsi figure

Scientific paper

We calculate the electric polarizability $\alpha(q^2)$ of the proton in virtual Compton scattering using the Skyrme model. The $q^2$ dependence of the polarizability is comparable with the predictions obtained from the non-relativistic quark model and the linear sigma model. The chiral behaviors of our $\alpha(0)$ and $d^2\alpha(0)/d^2q^2$ agree with the results of the chiral perturbation theory. The discrepancy can be traced back to the contribution of the intermediate $\Delta$ state degenerate with the $N$ which is a characteristic of a large-$N_C$ model.

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