Puzzles in quarkonium hadronic transitions with two pion emission

The anomalously large rates of some hadronic transitions from quarkonium are studied using QCD multipole expansion (QCDME) in the framework of a constituent quark model which has been successful in describing hadronic phenomenology. The hybrid intermediate states needed in the QCDME method are calcu...

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Detalles Bibliográficos
Autores principales: Fernández, F., Segovia, J., Ortega, P.G., Entem, D.R.
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1063/1.4938659
http://cds.cern.ch/record/1981120
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author Fernández, F.
Segovia, J.
Ortega, P.G.
Entem, D.R.
author_facet Fernández, F.
Segovia, J.
Ortega, P.G.
Entem, D.R.
author_sort Fernández, F.
collection CERN
description The anomalously large rates of some hadronic transitions from quarkonium are studied using QCD multipole expansion (QCDME) in the framework of a constituent quark model which has been successful in describing hadronic phenomenology. The hybrid intermediate states needed in the QCDME method are calculated in a natural extension of our constituent quark model based on the Quark Confining String (QCS) scheme. Some of the anomalies are explained due to the presence of an hybrid state with a mass near the mass of the decaying resonance whereas other are justified by the presence of molecular components in the wave function. Some unexpected results are pointed out.
id cern-1981120
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-19811202023-05-11T03:10:53Zdoi:10.1063/1.4938659http://cds.cern.ch/record/1981120engFernández, F.Segovia, J.Ortega, P.G.Entem, D.R.Puzzles in quarkonium hadronic transitions with two pion emissionParticle Physics - PhenomenologyThe anomalously large rates of some hadronic transitions from quarkonium are studied using QCD multipole expansion (QCDME) in the framework of a constituent quark model which has been successful in describing hadronic phenomenology. The hybrid intermediate states needed in the QCDME method are calculated in a natural extension of our constituent quark model based on the Quark Confining String (QCS) scheme. Some of the anomalies are explained due to the presence of an hybrid state with a mass near the mass of the decaying resonance whereas other are justified by the presence of molecular components in the wave function. Some unexpected results are pointed out.The anomalously large rates of some hadronic transitions from quarkonium are studied using QCD multipole expansion (QCDME) in the framework of a constituent quark model which has been successful in describing hadronic phenomenology. The hybrid intermediate states needed in the QCDME method are calculated in a natural extension of our constituent quark model based on the Quark Confining String (QCS) scheme. Some of the anomalies are explained due to the presence of an hybrid state with a mass near the mass of the decaying resonance whereas other are justified by the presence of molecular components in the wave function. Some unexpected results are pointed out.arXiv:1501.02578oai:cds.cern.ch:19811202015-01-12
spellingShingle Particle Physics - Phenomenology
Fernández, F.
Segovia, J.
Ortega, P.G.
Entem, D.R.
Puzzles in quarkonium hadronic transitions with two pion emission
title Puzzles in quarkonium hadronic transitions with two pion emission
title_full Puzzles in quarkonium hadronic transitions with two pion emission
title_fullStr Puzzles in quarkonium hadronic transitions with two pion emission
title_full_unstemmed Puzzles in quarkonium hadronic transitions with two pion emission
title_short Puzzles in quarkonium hadronic transitions with two pion emission
title_sort puzzles in quarkonium hadronic transitions with two pion emission
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1063/1.4938659
http://cds.cern.ch/record/1981120
work_keys_str_mv AT fernandezf puzzlesinquarkoniumhadronictransitionswithtwopionemission
AT segoviaj puzzlesinquarkoniumhadronictransitionswithtwopionemission
AT ortegapg puzzlesinquarkoniumhadronictransitionswithtwopionemission
AT entemdr puzzlesinquarkoniumhadronictransitionswithtwopionemission

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