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On exclusive reactions in the time-like region

The electromagnetic form factors of the proton in the time-like region and two-photon annihilations into proton-antiproton are investigated. To calculate these processes at moderately large $s$ we use a variant of the Brodsky-Lepage hard-scattering formalism where diquarks are considered as quasi-el...

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Detalles Bibliográficos
Autores principales: Kroll, P., Pilsner, T., Schurmann, M., Schweiger, W.
Lenguaje:eng
Publicado: 1993
Materias:
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(93)91042-L
http://cds.cern.ch/record/248767
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author Kroll, P.
Pilsner, T.
Schurmann, M.
Schweiger, W.
author_facet Kroll, P.
Pilsner, T.
Schurmann, M.
Schweiger, W.
author_sort Kroll, P.
collection CERN
description The electromagnetic form factors of the proton in the time-like region and two-photon annihilations into proton-antiproton are investigated. To calculate these processes at moderately large $s$ we use a variant of the Brodsky-Lepage hard-scattering formalism where diquarks are considered as quasi-elementary constituents of baryons. The proton wave function and the parameters controlling the diquark contributions are determined from fits to space-like data. We also comment on the decay $\eta_c \to p\bar{p}$.
id cern-248767
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1993
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spelling cern-2487672023-03-14T18:52:35Zdoi:10.1016/0370-2693(93)91042-Lhttp://cds.cern.ch/record/248767engKroll, P.Pilsner, T.Schurmann, M.Schweiger, W.On exclusive reactions in the time-like regionParticle Physics - PhenomenologyThe electromagnetic form factors of the proton in the time-like region and two-photon annihilations into proton-antiproton are investigated. To calculate these processes at moderately large $s$ we use a variant of the Brodsky-Lepage hard-scattering formalism where diquarks are considered as quasi-elementary constituents of baryons. The proton wave function and the parameters controlling the diquark contributions are determined from fits to space-like data. We also comment on the decay $\eta_c \to p\bar{p}$.The electromagnetic form factors of the proton in the time-like region and two-photon annihilations into proton-antiproton are investigated. To calculate these processes at moderately large $s$ we use a variant of the Brodsky-Lepage hard-scattering formalism where diquarks are considered as quasi-elementary constituents of baryons. The proton wave function and the parameters controlling the diquark contributions are determined from fits to space-like data. We also comment on the decay $\eta_c \to p\bar{p}$.The electromagnetic form factors of the proton in the time-like region and two-photon annihilations into proton-antiproton are investigated. To calculate these processes at moderately large $s$ we use a variant of the Brodsky-Lepage hard-scattering formalism where diquarks are considered as quasi-elementary constituents of baryons. The proton wave function and the parameters controlling the diquark contributions are determined from fits to space-like data. We also comment on the decay $\eta_c \to p\bar{p}$.The electromagnetic form factors of the proton in the time-like region and two-photon annihilations into proton-antiproton are investigated. To calculate these processes at moderately large s we use a variant of the Brodsky-Lepage hard-scattering formalism where diquarks are considered as quasi-elementary constituents of baryons. The proton wave function and the parameters controlling the diquark contributions are determined from fits to space-like data. We also comment on the decay ν c → p p .hep-ph/9305251CERN-TH-6869-93WU-B-93-06CERN-TH-6869-93WU-B-93-06oai:cds.cern.ch:2487671993
spellingShingle Particle Physics - Phenomenology
Kroll, P.
Pilsner, T.
Schurmann, M.
Schweiger, W.
On exclusive reactions in the time-like region
title On exclusive reactions in the time-like region
title_full On exclusive reactions in the time-like region
title_fullStr On exclusive reactions in the time-like region
title_full_unstemmed On exclusive reactions in the time-like region
title_short On exclusive reactions in the time-like region
title_sort on exclusive reactions in the time-like region
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(93)91042-L
http://cds.cern.ch/record/248767
work_keys_str_mv AT krollp onexclusivereactionsinthetimelikeregion
AT pilsnert onexclusivereactionsinthetimelikeregion
AT schurmannm onexclusivereactionsinthetimelikeregion
AT schweigerw onexclusivereactionsinthetimelikeregion