Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature

We study the temperature dependence of the eta and eta' meson masses withinthe framework of U(3)_L x U(3)_R chiral perturbation theory, up tonext-to-leading order in a simultaneous expansion in momenta, quark masses andnumber of colours. We find that both masses decrease at low temperatures, bu...

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Detalles Bibliográficos
Autores principales: Escribano, R., Ling, F.S., Tytgat, M.H.G.
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.62.056004
http://cds.cern.ch/record/430066
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author Escribano, R.
Ling, F.S.
Tytgat, M.H.G.
author_facet Escribano, R.
Ling, F.S.
Tytgat, M.H.G.
author_sort Escribano, R.
collection CERN
description We study the temperature dependence of the eta and eta' meson masses withinthe framework of U(3)_L x U(3)_R chiral perturbation theory, up tonext-to-leading order in a simultaneous expansion in momenta, quark masses andnumber of colours. We find that both masses decrease at low temperatures, butonly very slightly. We analyze higher order corrections and argue that largeN_c suggests a discontinuous drop of M_eta' at the critical temperature ofdeconfinement T_c, consistent with a first order transition to a phase withapproximate U(1)_A symmetry.
id cern-430066
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4300662023-03-14T18:57:01Zdoi:10.1103/PhysRevD.62.056004http://cds.cern.ch/record/430066engEscribano, R.Ling, F.S.Tytgat, M.H.G.Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperatureParticle Physics - PhenomenologyWe study the temperature dependence of the eta and eta' meson masses withinthe framework of U(3)_L x U(3)_R chiral perturbation theory, up tonext-to-leading order in a simultaneous expansion in momenta, quark masses andnumber of colours. We find that both masses decrease at low temperatures, butonly very slightly. We analyze higher order corrections and argue that largeN_c suggests a discontinuous drop of M_eta' at the critical temperature ofdeconfinement T_c, consistent with a first order transition to a phase withapproximate U(1)_A symmetry.We study the temperature dependence of the eta and eta' meson masses within the framework of U(3)_L x U(3)_R chiral perturbation theory, up to next-to-leading order in a simultaneous expansion in momenta, quark masses and number of colours. We find that both masses decrease at low temperatures, but only very slightly. We analyze higher order corrections and argue that large N_c suggests a discontinuous drop of M_eta' at the critical temperature of deconfinement T_c, consistent with a first order transition to a phase with approximate U(1)_A symmetry.hep-ph/0003052CERN-TH-2000-070LNF-00-005-PULB-TH-99-18CERN-TH-2000-070LNF-2000-005-PULB-TH-99-18oai:cds.cern.ch:4300662000-03-07
spellingShingle Particle Physics - Phenomenology
Escribano, R.
Ling, F.S.
Tytgat, M.H.G.
Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature
title Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature
title_full Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature
title_fullStr Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature
title_full_unstemmed Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature
title_short Large $N_{c}$, chiral approach to $M_{\eta}'$ at finite temperature
title_sort large $n_{c}$, chiral approach to $m_{\eta}'$ at finite temperature
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.62.056004
http://cds.cern.ch/record/430066
work_keys_str_mv AT escribanor largencchiralapproachtometaatfinitetemperature
AT lingfs largencchiralapproachtometaatfinitetemperature
AT tytgatmhg largencchiralapproachtometaatfinitetemperature

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