Deep inelastic scattering from gauge string duality in the soft wall model

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dc.creatorBayona, C. A. Ballon
dc.creatorBoschi-Filho, Henrique
dc.creatorBraga, Nelson R. F.
dc.date2007-11-01
dc.date2008-03-24
dc.date.accessioned2026-07-07T11:12:51Z
dc.date.available2026-07-07T11:12:51Z
dc.descriptionDeep inelastic structure functions have been calculated by Polchinski and Strassler in gauge/string duality introducing a hard infrared (IR) cut off in AdS space. Here we investigate this problem using a soft IR cut off that leads to linear Regge trajectories for mesons. We calculate the structure functions for scalar particles in the large x regime where supergravity approximation holds and the small x regime where massive string states contribute. We also propose a hybrid model to calculate structure functions for fermions in the supergravity approximation. In the deep inelastic limit our results are in agreement with those obtained using a hard cut off.
dc.descriptionV3: Results unchanged. We clarified the differences between the soft and hard wall models regarding the calculation of structure functions in DIS. We included a calculation of elastic form factors. We explained in more detail the hybrid model proposed for fermions. Version accepted for publication in JHEP. 20 pages, 1 Latex figure
dc.identifierhttps://arxiv.org/abs/0711.0221
dc.identifierhttp://arxiv.org/abs/0711.0221
dc.identifierJHEP0803:064,2008
dc.identifierdoi:10.1088/1126-6708/2008/03/064
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191521
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDeep inelastic scattering from gauge string duality in the soft wall model
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