TY - JOUR
T1 - Equation of state of gluon plasma from a fundamental modular region
AU - Zwanziger, Daniel
PY - 2005/5/13
Y1 - 2005/5/13
N2 - Despite considerable practical success in dealing with the gluon plasma, finite-temperature perturbation theory suffers at the fundamental level from infrared divergences discovered by Linde. However, if gauge or Gribov copies are properly eliminated from the physical state space, infrared modes are strongly suppressed. We describe the gluon plasma in zeroth order as a gas of free quasiparticles with a temperature-independent dispersion relation of Gribov type, E(k)=k2+M4k2, that results from the reduction of the physical state space. The effective mass M2k controls infrared divergences and allows finite calculable corrections. The equation of state of this gas is calculated and compared with numerical lattice data.
AB - Despite considerable practical success in dealing with the gluon plasma, finite-temperature perturbation theory suffers at the fundamental level from infrared divergences discovered by Linde. However, if gauge or Gribov copies are properly eliminated from the physical state space, infrared modes are strongly suppressed. We describe the gluon plasma in zeroth order as a gas of free quasiparticles with a temperature-independent dispersion relation of Gribov type, E(k)=k2+M4k2, that results from the reduction of the physical state space. The effective mass M2k controls infrared divergences and allows finite calculable corrections. The equation of state of this gas is calculated and compared with numerical lattice data.
UR - http://www.scopus.com/inward/record.url?scp=27144473354&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27144473354&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.94.182301
DO - 10.1103/PhysRevLett.94.182301
M3 - Article
AN - SCOPUS:27144473354
SN - 0031-9007
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
IS - 18
M1 - 182301
ER -