Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest

We study pi0pi0 correlations in the exclusive reaction ppbar -> 4pi0 at rest with complete reconstruction of the kinematics for each event. The inclusive distribution shows a dip at small invariant mass of the pion pair while a small enhancement in the double differential distribution is observed...

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Detalles Bibliográficos
Autores principales: Kortner, O., Locher, M.P., Markushin, V.E., Weber, P., Wigger, O.
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1007/s10052-002-1033-8
http://cds.cern.ch/record/539457
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author Kortner, O.
Locher, M.P.
Markushin, V.E.
Weber, P.
Wigger, O.
author_facet Kortner, O.
Locher, M.P.
Markushin, V.E.
Weber, P.
Wigger, O.
author_sort Kortner, O.
collection CERN
description We study pi0pi0 correlations in the exclusive reaction ppbar -> 4pi0 at rest with complete reconstruction of the kinematics for each event. The inclusive distribution shows a dip at small invariant mass of the pion pair while a small enhancement in the double differential distribution is observed for small invariant masses of both pion pairs. Dynamical models with resonances in the final state are shown to be consistent with the data while the stochastic HBT mechanism is not supported by the present findings.
id cern-539457
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2002
record_format invenio
spelling cern-5394572023-03-14T18:09:30Zdoi:10.1007/s10052-002-1033-8http://cds.cern.ch/record/539457engKortner, O.Locher, M.P.Markushin, V.E.Weber, P.Wigger, O.Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at RestParticle Physics - ExperimentWe study pi0pi0 correlations in the exclusive reaction ppbar -> 4pi0 at rest with complete reconstruction of the kinematics for each event. The inclusive distribution shows a dip at small invariant mass of the pion pair while a small enhancement in the double differential distribution is observed for small invariant masses of both pion pairs. Dynamical models with resonances in the final state are shown to be consistent with the data while the stochastic HBT mechanism is not supported by the present findings.We study pi0pi0 correlations in the exclusive reaction ppbar -> 4pi0 at rest with complete reconstruction of the kinematics for each event. The inclusive distribution shows a dip at small invariant mass of the pion pair while a small enhancement in the double differential distribution is observed for small invariant masses of both pion pairs. Dynamical models with resonances in the final state are shown to be consistent with the data while the stochastic HBT mechanism is not supported by the present findings.hep-ex/0202042oai:cds.cern.ch:5394572002-02-25
spellingShingle Particle Physics - Experiment
Kortner, O.
Locher, M.P.
Markushin, V.E.
Weber, P.
Wigger, O.
Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest
title Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest
title_full Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest
title_fullStr Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest
title_full_unstemmed Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest
title_short Pion Correlations and Resonance Effects in ppbar Annihilation to 4pi0 at Rest
title_sort pion correlations and resonance effects in ppbar annihilation to 4pi0 at rest
topic Particle Physics - Experiment
url https://dx.doi.org/10.1007/s10052-002-1033-8
http://cds.cern.ch/record/539457
work_keys_str_mv AT kortnero pioncorrelationsandresonanceeffectsinppbarannihilationto4pi0atrest
AT lochermp pioncorrelationsandresonanceeffectsinppbarannihilationto4pi0atrest
AT markushinve pioncorrelationsandresonanceeffectsinppbarannihilationto4pi0atrest
AT weberp pioncorrelationsandresonanceeffectsinppbarannihilationto4pi0atrest
AT wiggero pioncorrelationsandresonanceeffectsinppbarannihilationto4pi0atrest

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