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Type: Artigo
Title: Updating an empirical analysis on the proton’s central opacity and asymptotia
Author: Fagundes, D. A.
Menon, M. J.
Silva, P. V. R. G.
Abstract: We present an updated empirical analysis on the ratio of the elastic (integrated) to the total cross section in the c.m. energy interval from 5 GeV to 8 TeV. As in a previous work, we use a suitable analytical parametrization for that ratio (depending on only four free fit parameters) and investigate three asymptotic scenarios: either the black disk limit or scenarios above or below that limit. The dataset includes now the datum at 7 TeV, recently reported by the ATLAS Collaboration. Our analysis favors, once more, a scenario below the black disk, providing an asymptotic ratio consistent with the rational value 1/3, namely a gray disk limit. Upper bounds for the ratio of the diffractive (dissociative) to the inelastic cross section are also presented
Subject: Prótons
Country: Reino Unido
Editor: IOP Publishing
Rights: Aberto
Identifier DOI: 10.1088/1742-6596/706/5/052027
Date Issue: 2016
Appears in Collections:IFGW - Artigos e Outros Documentos

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