Many-body Coulomb gauge exotic and charmed hybrids

Utilizing an effective QCD Coulomb gauge Hamiltonian with linear confinement specified by lattice, we report a relativistic many-body calculation for the light exotic and charmed hybrid mesons. The Hamiltonian successfully describes both quark and gluon sectors, with vacuum and quasiparticle propert...

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Detalles Bibliográficos
Autores: Llanes Estrada, Felipe José, Cotanch, Stephen R
Tipo de recurso: artículo
Fecha de publicación:2001
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/58834
Acceso en línea:https://hdl.handle.net/20.500.14352/58834
Access Level:acceso abierto
Palabra clave:53
Flux-Tube Model
Heavy Hybrids
Constituent Gluons
18 Gev/C
Mesons
Qcd
Hadrons
Física (Física)
22 Física
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oai_identifier_str oai:docta.ucm.es:20.500.14352/58834
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network_name_str España
repository_id_str
spelling Many-body Coulomb gauge exotic and charmed hybridsLlanes Estrada, Felipe JoséCotanch, Stephen R53Flux-Tube ModelHeavy HybridsConstituent Gluons18 Gev/CMesonsQcdHadronsFísica (Física)22 FísicaUtilizing an effective QCD Coulomb gauge Hamiltonian with linear confinement specified by lattice, we report a relativistic many-body calculation for the light exotic and charmed hybrid mesons. The Hamiltonian successfully describes both quark and gluon sectors, with vacuum and quasiparticle properties generated by a BCS transformation and more elaborate TDA and RPA diagonalizations for the meson (q¯q ) and glueball (gg) masses. Hybrids entail a computationally intense relativistic three quasiparticle (q ¯ qg) calculation with the 9-dimensional Hamiltonian matrix elements evaluated variationally by Monte Carlo techniques. Our new TDA (RPA) spectrum for the nonexotic 1−− charmed (c ¯ c and c ¯cg) system provides an explanation for the overpopulation of the observed J/ψ states. For the important 1−+ light exotic channel we obtain hybrid masses above 2 GeV, in broad agreement with lattice and flux tube models, indicating that the recently observed resonances at 1.4 and 1.6 GeV are of different, perhaps four quark, structure.Elsevier Science BvUniversidad Complutense de Madrid20012001-04-0520012001-04-05journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://hdl.handle.net/20.500.14352/58834reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/588342026-06-02T12:44:21Z
dc.title.none.fl_str_mv Many-body Coulomb gauge exotic and charmed hybrids
title Many-body Coulomb gauge exotic and charmed hybrids
spellingShingle Many-body Coulomb gauge exotic and charmed hybrids
Llanes Estrada, Felipe José
53
Flux-Tube Model
Heavy Hybrids
Constituent Gluons
18 Gev/C
Mesons
Qcd
Hadrons
Física (Física)
22 Física
title_short Many-body Coulomb gauge exotic and charmed hybrids
title_full Many-body Coulomb gauge exotic and charmed hybrids
title_fullStr Many-body Coulomb gauge exotic and charmed hybrids
title_full_unstemmed Many-body Coulomb gauge exotic and charmed hybrids
title_sort Many-body Coulomb gauge exotic and charmed hybrids
dc.creator.none.fl_str_mv Llanes Estrada, Felipe José
Cotanch, Stephen R
author Llanes Estrada, Felipe José
author_facet Llanes Estrada, Felipe José
Cotanch, Stephen R
author_role author
author2 Cotanch, Stephen R
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 53
Flux-Tube Model
Heavy Hybrids
Constituent Gluons
18 Gev/C
Mesons
Qcd
Hadrons
Física (Física)
22 Física
topic 53
Flux-Tube Model
Heavy Hybrids
Constituent Gluons
18 Gev/C
Mesons
Qcd
Hadrons
Física (Física)
22 Física
description Utilizing an effective QCD Coulomb gauge Hamiltonian with linear confinement specified by lattice, we report a relativistic many-body calculation for the light exotic and charmed hybrid mesons. The Hamiltonian successfully describes both quark and gluon sectors, with vacuum and quasiparticle properties generated by a BCS transformation and more elaborate TDA and RPA diagonalizations for the meson (q¯q ) and glueball (gg) masses. Hybrids entail a computationally intense relativistic three quasiparticle (q ¯ qg) calculation with the 9-dimensional Hamiltonian matrix elements evaluated variationally by Monte Carlo techniques. Our new TDA (RPA) spectrum for the nonexotic 1−− charmed (c ¯ c and c ¯cg) system provides an explanation for the overpopulation of the observed J/ψ states. For the important 1−+ light exotic channel we obtain hybrid masses above 2 GeV, in broad agreement with lattice and flux tube models, indicating that the recently observed resonances at 1.4 and 1.6 GeV are of different, perhaps four quark, structure.
publishDate 2001
dc.date.none.fl_str_mv 2001
2001-04-05
2001
2001-04-05
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/58834
url https://hdl.handle.net/20.500.14352/58834
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Bv
publisher.none.fl_str_mv Elsevier Science Bv
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409495101210624
score 15,300719

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