TY - JOUR
T1 - The chiral and deconfinement crossover transitions
T2 - PNJL model beyond mean field
AU - Rößner, S.
AU - Hell, T.
AU - Ratti, C.
AU - Weise, W.
N1 - Funding Information:
✩ Work supported in part by BMBF, GSI, INFN, the DFG excellence cluster “Origin and Structure of the Universe” and by the Elitenetzwerk Bayern. * Corresponding author. E-mail address: [email protected] (S. Rößner).
PY - 2008/12/15
Y1 - 2008/12/15
N2 - The Polyakov loop extended Nambu and Jona-Lasinio model (PNJL model) in a mean field framework shows astonishingly good agreement with lattice QCD calculations which needs to be better understood. The present work reports on further developments concerning both Polyakov loop and mesonic fluctuations beyond mean field approximation. Corrections beyond mean field are of special interest for the thermal expectation values of the Polyakov loop 〈 Φ 〉 and its conjugate 〈 Φ* 〉, which differ once the quark chemical potential is non-zero. Mesonic fluctuations are also considered with emphasis on the role of pionic modes.
AB - The Polyakov loop extended Nambu and Jona-Lasinio model (PNJL model) in a mean field framework shows astonishingly good agreement with lattice QCD calculations which needs to be better understood. The present work reports on further developments concerning both Polyakov loop and mesonic fluctuations beyond mean field approximation. Corrections beyond mean field are of special interest for the thermal expectation values of the Polyakov loop 〈 Φ 〉 and its conjugate 〈 Φ* 〉, which differ once the quark chemical potential is non-zero. Mesonic fluctuations are also considered with emphasis on the role of pionic modes.
KW - Chiral symmetry
KW - Confinement
KW - Phases of QCD
UR - http://www.scopus.com/inward/record.url?scp=56249120998&partnerID=8YFLogxK
U2 - 10.1016/j.nuclphysa.2008.10.006
DO - 10.1016/j.nuclphysa.2008.10.006
M3 - Article
AN - SCOPUS:56249120998
SN - 0375-9474
VL - 814
SP - 118
EP - 143
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
IS - 1-4
ER -