3-GRAVITON VERTEX FUNCTION IN THERMAL QUANTUM-GRAVITY

Citation
Ft. Brandt et J. Frenkel, 3-GRAVITON VERTEX FUNCTION IN THERMAL QUANTUM-GRAVITY, Physical review. D. Particles and fields, 47(10), 1993, pp. 4688-4697
Citations number
14
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
47
Issue
10
Year of publication
1993
Pages
4688 - 4697
Database
ISI
SICI code
0556-2821(1993)47:10<4688:3VFITQ>2.0.ZU;2-N
Abstract
The high-temperature limit of the three-graviton vertex function is st udied in thermal quantum gravity, to one-loop order. The leading (T4) Contributions arising from internal gravitons are calculated and shown to be twice the ones associated with internal scalar particles, in co rrespondence with the two helicity states of the graviton. The gauge i nvariance of this result follows as a consequence of the Ward and Weyl identities obeyed by the thermal loops, which axe verified explicitly .