The non-perturbative equation of state for gluon matter
| dc.creator | Gogokhia, V. | |
| dc.creator | SKokov, V. | |
| dc.date | 2007-12-01 | |
| dc.date.accessioned | 2026-07-07T08:46:44Z | |
| dc.date.available | 2026-07-07T08:46:44Z | |
| dc.description | In order to derive equation of state for the pure SU(3) Yang-Mills fields from first principles, it is proposed to generalize the effective potential approach for composite operators to non-zero temperatures. It is essentially non-perturbative by construction, since it assumes the summation of an infinite number of the corresponding contributions. There is no dependence on the coupling constant, only a dependence on the mass gap, which is responsible for the large-scale structure of the QCD ground state. The equation of state generalizes the Bag constant at non-zero temperatures, while its nontrivial Yang-Mills part has been approximated by the generalization of the free gluon propagator to non-zero temperatures, as a first necessary step. Even in this case we were able to show explicitly that the pressure may almost continuously change its regime at $T^* = 266.5 MeV$.All the other thermodynamical quantities such as energy density, entropy, etc. are to be understood to have drastic changes in their regimes in the close vicinity of $T^*$. All this is in qualitative and quantitative agreement with thermal lattice QCD results for the pure Yang-Mills fields. We have firmly established the behavior of all the thermodynamical quantities in the region of low temperatures, where thermal lattice QCD calculations suffer from big uncertainties. | |
| dc.description | 12 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0712.0075 | |
| dc.identifier | http://arxiv.org/abs/0712.0075 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/143348 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The non-perturbative equation of state for gluon matter | |
| dc.type | text |