Generalized baryon form factors and proton structure functions in the Sakai–Sugimoto model

Ballon Bayona, C. A. and Boschi-Filho, Henrique and Braga, Nelson R. F. and Ihl, Matthias and Torres, Marcus A. C. (2011) Generalized baryon form factors and proton structure functions in the Sakai–Sugimoto model. Nuclear Physics B, 866 (2). pp. 124-156. ISSN 05503213

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Official URL: http://doi.org/10.1016/j.nuclphysb.2012.08.017

Abstract

We investigate the production of positive parity baryon resonances in proton electromagnetic scattering within the Sakai-Sugimoto model. The latter is a string model for the non-perturbative regime of large N_c QCD. Using holographic techniques we calculate the generalized Dirac and Pauli form factors that describe resonance production. We use these results to estimate the contribution of resonance production to the proton structure functions. Interestingly, we find an approximate Callan-Gross relation for the structure functions in a regime of intermediate values of the Bjorken variable.

Item Type: Article
Divisions: School of Theoretical Physics > Preprints
Date Deposited: 05 Oct 2017 19:25
Last Modified: 13 Jul 2018 09:11
URI: http://dair.dias.ie/id/eprint/275

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