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High Energy Physics - Phenomenology

arXiv:hep-ph/0510172 (hep-ph)
[Submitted on 13 Oct 2005 (v1), last revised 21 Oct 2005 (this version, v2)]

Title:Elastic scattering and the proton form factor

Authors:F. Carvalho, A. A. Natale, C. M. Zanetti
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Abstract: We compute the differential and the total cross sections for $pp$ scattering using the QCD pomeron model proposed by Landshoff and Nachtmann. This model is quite dependent on the experimental electromagnetic form factor, and it is not totally clear why this form factor gives good results even at moderate transferred momentum. We exchange the eletromagnetic form factor by the asymptotic QCD proton form factor determined by Brodsky and Lepage (BL) plus a prescription for its low energy behavior dictated by the existence of a dynamically generated gluon mass. We fit the data with this QCD inspired form factor and a value for the dynamical gluon mass consistent with the ones determined in the literature. Our results also provide a new determination of the proton wave function at the origin, which appears in the BL form factor.
Comments: 10 pages, 2 figures. Submitted to Physics Letters B. Submitted to Phys. Lett. B
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/0510172
  (or arXiv:hep-ph/0510172v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0510172
Journal reference: Mod.Phys.Lett.A21:3021-3030,2006
Related DOI: https://doi.org/10.1142/S0217732306020780

Submission history

From: Fabiana Carvalho [view email]
[v1] Thu, 13 Oct 2005 17:56:58 UTC (61 KB)
[v2] Fri, 21 Oct 2005 18:16:45 UTC (61 KB)
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