Proton-proton forward scattering at the LHC
dc.contributor.author | Rocha, Mateus Broilo da | pt_BR |
dc.contributor.author | Fagundes, Daniel Almeida | pt_BR |
dc.contributor.author | Luna, Emerson Gustavo de Souza | pt_BR |
dc.contributor.author | Menon, Marcio Jose | pt_BR |
dc.date.accessioned | 2020-01-14T04:15:36Z | pt_BR |
dc.date.issued | 2019 | pt_BR |
dc.identifier.issn | 0370-2693 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/204127 | pt_BR |
dc.description.abstract | Recently the TOTEM experiment at the LHC has released measurements at √s=13 TeV of the proton-proton total cross section, σtot, and the ratio of the real to imaginary parts of the forward elastic amplitude, ρ. Since then an intense debate on the C-parity asymptotic nature of the scattering amplitude was initiated. We examine the proton-proton and the antiproton-proton forward data above 10 GeV in the context of an eikonal QCD-based model, where nonperturbative effects are readily included via a QCD effective charge. We show that, despite an overall satisfactory description of the forward data is obtained by a model in which the scattering amplitude is dominated by only crossing-even elastic terms, there is evidence that the introduction of a crossing-odd term may improve the agreement with the measurements of ρ at √s=13 TeV. In the Regge language the dominant even(odd)-under-crossing object is the so called Pomeron (Odderon). | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physics letters. B. Amsterdam. Vol. 799 (Dec. 2019), p. 1-5 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Other nonperturbative calculations | en |
dc.subject | Espalhamento proton proton | pt_BR |
dc.subject | Elastic scattering | en |
dc.subject | Hadrons | pt_BR |
dc.subject | Pomerons | pt_BR |
dc.subject | Total cross-sections | en |
dc.subject | Altas energias | pt_BR |
dc.title | Proton-proton forward scattering at the LHC | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001109577 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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