Quark-hadron matter at finite temperature and density in a two-color PNJL model

Shotaro Imai; Hiroshi Toki; Wolfram Weise

doi:10.1016/j.nuclphysa.2013.06.001

Quark-hadron matter at finite temperature and density in a two-color PNJL model

Shotaro Imai
, Hiroshi Toki
, Wolfram Weise

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Quark-hadron matter at finite temperature and density is studied using a two-flavor, color SU(2) (P)NJL model. The hadronic effective Lagrangian, derived by bosonization of the quark fields and renormalized using the Eguchi method, emerges in the form of an extended linear σ model with meson and diquark-baryon fields. Chiral and diquark condensates are studied as functions of temperature and baryon density. Masses of mesons and diquark-baryons are calculated with and without the Polyakov loop effect. We investigate the equation of state of quark-hadron matter by taking into account the contributions of mesons and diquark-baryons in addition to the quark quasiparticles.

Original language	English
Pages (from-to)	71-102
Number of pages	32
Journal	Nuclear Physics, Section A
Volume	913
DOIs	https://doi.org/10.1016/j.nuclphysa.2013.06.001
State	Published - 2 Sep 2013

Keywords

Chiral condensation
Color SU(2)
Diquark condensation
Equation of state of quark-hadron matter
NJL model
Polyakov loop

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10.1016/j.nuclphysa.2013.06.001

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title = "Quark-hadron matter at finite temperature and density in a two-color PNJL model",

abstract = "Quark-hadron matter at finite temperature and density is studied using a two-flavor, color SU(2) (P)NJL model. The hadronic effective Lagrangian, derived by bosonization of the quark fields and renormalized using the Eguchi method, emerges in the form of an extended linear σ model with meson and diquark-baryon fields. Chiral and diquark condensates are studied as functions of temperature and baryon density. Masses of mesons and diquark-baryons are calculated with and without the Polyakov loop effect. We investigate the equation of state of quark-hadron matter by taking into account the contributions of mesons and diquark-baryons in addition to the quark quasiparticles.",

keywords = "Chiral condensation, Color SU(2), Diquark condensation, Equation of state of quark-hadron matter, NJL model, Polyakov loop",

author = "Shotaro Imai and Hiroshi Toki and Wolfram Weise",

note = "Funding Information: S.I. and H.T. are grateful to Wolfram Weise and the colleagues of the theory group at Technische Universit{\"a}t M{\"u}nchen for fruitful discussions and warm hospitality extended to both of us. S.I. acknowledges the support of Osaka University under the JSPS International Training Program (ITP) and H.T. the support of the Humboldt Foundation . One of us (W.W.) thanks Simon Hands for valuable information. This work is partly supported by JSPS ( 21540267 ) and by the DFG Cluster of Excellence “Origin and Structure of the Universe”. ",

year = "2013",

month = sep,

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doi = "10.1016/j.nuclphysa.2013.06.001",

language = "English",

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pages = "71--102",

journal = "Nuclear Physics, Section A",

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TY - JOUR

T1 - Quark-hadron matter at finite temperature and density in a two-color PNJL model

AU - Imai, Shotaro

AU - Toki, Hiroshi

AU - Weise, Wolfram

N1 - Funding Information: S.I. and H.T. are grateful to Wolfram Weise and the colleagues of the theory group at Technische Universität München for fruitful discussions and warm hospitality extended to both of us. S.I. acknowledges the support of Osaka University under the JSPS International Training Program (ITP) and H.T. the support of the Humboldt Foundation . One of us (W.W.) thanks Simon Hands for valuable information. This work is partly supported by JSPS ( 21540267 ) and by the DFG Cluster of Excellence “Origin and Structure of the Universe”.

PY - 2013/9/2

Y1 - 2013/9/2

N2 - Quark-hadron matter at finite temperature and density is studied using a two-flavor, color SU(2) (P)NJL model. The hadronic effective Lagrangian, derived by bosonization of the quark fields and renormalized using the Eguchi method, emerges in the form of an extended linear σ model with meson and diquark-baryon fields. Chiral and diquark condensates are studied as functions of temperature and baryon density. Masses of mesons and diquark-baryons are calculated with and without the Polyakov loop effect. We investigate the equation of state of quark-hadron matter by taking into account the contributions of mesons and diquark-baryons in addition to the quark quasiparticles.

AB - Quark-hadron matter at finite temperature and density is studied using a two-flavor, color SU(2) (P)NJL model. The hadronic effective Lagrangian, derived by bosonization of the quark fields and renormalized using the Eguchi method, emerges in the form of an extended linear σ model with meson and diquark-baryon fields. Chiral and diquark condensates are studied as functions of temperature and baryon density. Masses of mesons and diquark-baryons are calculated with and without the Polyakov loop effect. We investigate the equation of state of quark-hadron matter by taking into account the contributions of mesons and diquark-baryons in addition to the quark quasiparticles.

KW - Chiral condensation

KW - Color SU(2)

KW - Diquark condensation

KW - Equation of state of quark-hadron matter

KW - NJL model

KW - Polyakov loop

UR - https://www.scopus.com/pages/publications/84879317641

U2 - 10.1016/j.nuclphysa.2013.06.001

DO - 10.1016/j.nuclphysa.2013.06.001

M3 - Article

AN - SCOPUS:84879317641

SN - 0375-9474

VL - 913

SP - 71

EP - 102

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

ER -

Quark-hadron matter at finite temperature and density in a two-color PNJL model

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Keywords

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