Massive basketball diagram for a thermal scalar field theory - art. no. 045004

Authors
Andersen, JO Braaten, E Strickland, M
Citation
Jo. Andersen et al., Massive basketball diagram for a thermal scalar field theory - art. no. 045004, PHYS REV D, 6204(4), 2000, pp. 5004
Citations number
26
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6204
Issue
4
Year of publication
2000
Database
ISI
SICI code
0556-2821(20000815)6204:4<5004:MBDFAT>2.0.ZU;2-F
Abstract
The "basketball diagram" is a three-loop vacuum diagram for a scalar field theory that cannot be expressed in terms of one-loop diagrams. We calculate this diagram for a massive scalar field at nonzero temperature, reducing i t to expressions involving three-dimensional integrals that can be easily e valuated numerically. We use this result to calculate the foe energy for a massive scalar field with a phi(4) interaction to three-loop order.