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|Title:||Fine structure of the diffraction cone: from the ISR to the LHC|
|Author:||Fagundes, D. A.|
Miranda, E. Q.
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)|
|Editor:||World Scientific Publishing|
|Citation:||International Journal Of Modern Physics A. World Scientific Publ Co Pte Ltd, v. 31, p. , 2016.|
|Appears in Collections:||IFGW - Artigos e Outros Documentos|
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