Screened perturbation theory at four loops
| dc.creator | Kyllingstad, Lars | |
| dc.date | 2008-10-15 | |
| dc.date.accessioned | 2026-07-07T12:53:26Z | |
| dc.date.available | 2026-07-07T12:53:26Z | |
| dc.description | We study the thermodynamics of massless phi-fourth theory using screened perturbation theory, which is a way to systematically reorganise the perturbative series. The free energy and pressure are calculated through four loops in a double expansion in powers of g^2 and m/T, where m is a thermal mass of order gT. The result is truncated at order g^7. We find that the convergence properties are significantly improved compared to the weak-coupling expansion. | |
| dc.description | Talk given at Strong and Electroweak Matter 2008, Amsterdam, Aug. 25-29 2008. 4 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/0810.2623 | |
| dc.identifier | http://arxiv.org/abs/0810.2623 | |
| dc.identifier | Nucl. Phys A820, 167c (2009) | |
| dc.identifier | doi:10.1016/j.nuclphysa.2009.01.041 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/223621 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Screened perturbation theory at four loops | |
| dc.type | text |