Deconfinement phase transition in the Hamiltonian approach to Yang-Mills theory in Coulomb gauge

被引：23

作者：

Heffner, Jan ^{[1
]}

Reinhardt, Hugo ^{[1
]}

Campagnari, Davide R. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 12期

关键词：

QCD; TEMPERATURE; RENORMALIZATION; CONFINEMENT; DIAGRAM;

D O I：

10.1103/PhysRevD.85.125029

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The deconfinement phase transition of SU(2) Yang-Mills theory is investigated in the Hamiltonian approach in Coulomb gauge assuming a quasiparticle picture for the grand canonical gluon ensemble. The thermal equilibrium state is found by minimizing the free energy with respect to the quasigluon energy. Above the deconfinement phase transition the ghost form factor remains infrared divergent but its infrared exponent is approximately halved, while the gluon energy, being infrared divergent in the confined phase, becomes infrared finite in the deconfined phase. For the effective gluon mass we find a critical exponent of 0.37. Using the lattice results for the gluon propagator to fix the scale, the deconfinement transition temperature is obtained in the range of 275 to 290 MeV.

引用

页数：20

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