One Loop Graviton Self-Energy In A Locally De Sitter Background

Details One Loop Graviton Self-Energy In A Locally De Sitter Background One Loop Graviton Self-Energy In A Locally De Sitter Background

1996-02-15

arxiv.org/abs/hep-ph/9602317v3

Phys.Rev. D54 (1996) 2621-2639

Physics

High Energy Physics

High Energy Physics - Phenomenology

35 pages, plain TeX, 4 Postscript files, uses psfig.sty, revised June 1996 for publication in Physical Review D

Scientific paper

10.1103/PhysRevD.54.2621

The graviton tadpole has recently been computed at two loops in a locally de Sitter background. We apply intermediate results of this work to exhibit the graviton self-energy at one loop. This quantity is interesting both to check the accuracy of the first calculation and to understand the relaxation effect it reveals. In the former context we show that the self-energy obeys the appropriate Ward identity. We also show that its flat space limit agrees with the flat space result obtained by Capper in what should be the same gauge.

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