Patterns and partners for chiral symmetry restoration

We present and analyze a new set of Ward Identities which shed light on the distinction between different patterns of chiral symmetry restoration in QCD, namely O(4) vs O(4) x U(1)_A. The degeneracy of chiral partners for all scalar and pseudoscalar meson nonet members is studied through their corre...

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Detalles Bibliográficos
Autores: Gómez Nicola, Ángel, Ruiz De Elvira Carrascal, Jacobo
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/12156
Acceso en línea:https://hdl.handle.net/20.500.14352/12156
Access Level:acceso abierto
Palabra clave:51-73
Large-N-C
Perturbation-theory
Quantum chromodynamics
Finite-temperature
Goldstone boson
Qcd
Susceptibility
Dynamics
Lattice
Phase
Física-Modelos matemáticos
Física matemática
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oai_identifier_str oai:docta.ucm.es:20.500.14352/12156
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spelling Patterns and partners for chiral symmetry restorationGómez Nicola, ÁngelRuiz De Elvira Carrascal, Jacobo51-73Large-N-CPerturbation-theoryQuantum chromodynamicsFinite-temperatureGoldstone bosonQcdSusceptibilityDynamicsLatticePhaseFísica-Modelos matemáticosFísica matemáticaWe present and analyze a new set of Ward Identities which shed light on the distinction between different patterns of chiral symmetry restoration in QCD, namely O(4) vs O(4) x U(1)_A. The degeneracy of chiral partners for all scalar and pseudoscalar meson nonet members is studied through their corresponding correlators. Around chiral symmetry degeneration of O(4) partners, our analysis predicts that U(1)_A partners are also degenerated. Our analysis also leads to I = 1/2 scalar-pseudoscalar partner degeneration at exact chiral restoration and supports ideal mixing between the η- η' and the f₀(500)-f₀(980) mesons at O(4) x U(1)_A restoration, with a possible range where the pseudoscalar mixing vanishes if the two transitions are well separated. We test our results with lattice data and provide further relevant observables regarding chiral and U(1)_A restoration for future lattice and model analyses.Amer Physical SocUniversidad Complutense de Madrid20182018-04-1620182018-04-16journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/12156reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/121562026-06-02T12:44:21Z
dc.title.none.fl_str_mv Patterns and partners for chiral symmetry restoration
title Patterns and partners for chiral symmetry restoration
spellingShingle Patterns and partners for chiral symmetry restoration
Gómez Nicola, Ángel
51-73
Large-N-C
Perturbation-theory
Quantum chromodynamics
Finite-temperature
Goldstone boson
Qcd
Susceptibility
Dynamics
Lattice
Phase
Física-Modelos matemáticos
Física matemática
title_short Patterns and partners for chiral symmetry restoration
title_full Patterns and partners for chiral symmetry restoration
title_fullStr Patterns and partners for chiral symmetry restoration
title_full_unstemmed Patterns and partners for chiral symmetry restoration
title_sort Patterns and partners for chiral symmetry restoration
dc.creator.none.fl_str_mv Gómez Nicola, Ángel
Ruiz De Elvira Carrascal, Jacobo
author Gómez Nicola, Ángel
author_facet Gómez Nicola, Ángel
Ruiz De Elvira Carrascal, Jacobo
author_role author
author2 Ruiz De Elvira Carrascal, Jacobo
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 51-73
Large-N-C
Perturbation-theory
Quantum chromodynamics
Finite-temperature
Goldstone boson
Qcd
Susceptibility
Dynamics
Lattice
Phase
Física-Modelos matemáticos
Física matemática
topic 51-73
Large-N-C
Perturbation-theory
Quantum chromodynamics
Finite-temperature
Goldstone boson
Qcd
Susceptibility
Dynamics
Lattice
Phase
Física-Modelos matemáticos
Física matemática
description We present and analyze a new set of Ward Identities which shed light on the distinction between different patterns of chiral symmetry restoration in QCD, namely O(4) vs O(4) x U(1)_A. The degeneracy of chiral partners for all scalar and pseudoscalar meson nonet members is studied through their corresponding correlators. Around chiral symmetry degeneration of O(4) partners, our analysis predicts that U(1)_A partners are also degenerated. Our analysis also leads to I = 1/2 scalar-pseudoscalar partner degeneration at exact chiral restoration and supports ideal mixing between the η- η' and the f₀(500)-f₀(980) mesons at O(4) x U(1)_A restoration, with a possible range where the pseudoscalar mixing vanishes if the two transitions are well separated. We test our results with lattice data and provide further relevant observables regarding chiral and U(1)_A restoration for future lattice and model analyses.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-04-16
2018
2018-04-16
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/20.500.14352/12156
url https://hdl.handle.net/20.500.14352/12156
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
dc.publisher.none.fl_str_mv Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
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_ 1869415486292230144
score 15.301603

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