Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/328248
Type: Congresso
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.
Editor: IOP Publishing Ltd
Bristol
Rights: aberto
Identifier DOI: 10.1088/1742-6596/706/5/052027
Address: http://iopscience.iop.org.ez88.periodicos.capes.gov.br/article/10.1088/1742-6596/706/5/052027/meta
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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