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Type: Artigo
Title: Fine structure of the diffraction cone: from the ISR to the LHC
Author: Fagundes, D. A.
Jenkovszky, L.
Miranda, E. Q.
Pancheri, G.
Silva, P. V. R. G.
Abstract: Following earlier findings, we argue that the low-vertical bar t vertical bar structure in the elastic diffractive cone, recently reported by the TOTEM Collaboration at 8 TeV, is a consequence of the threshold singularity required by t-channel unitarity, such as revealed earlier at the ISR. By using simple Regge-pole models, we analyze the available data on the pp elastic differential cross section in a wide range of c.m. energies, namely those from ISR to LHC8, obtaining good fits of all datasets. This study hints at the fact that the non-exponential behavior observed at LHC8 is a recurrence of the low-vertical bar t vertical bar "break" phenomenon, observed in the seventies at ISR, being induced by the presence of a two-pion loop singularity in the Pomeron trajectory.
Subject: Seção de choque (Física nuclear)
Espalhamento elástico
Country: Cingapura
Editor: World Scientific Publishing
Citation: International Journal Of Modern Physics A. World Scientific Publ Co Pte Ltd, v. 31, p. , 2016.
Rights: fechado
Identifier DOI: 10.1142/S0217751X16450226
Date Issue: 2016
Appears in Collections:IFGW - Artigos e Outros Documentos

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