Quantum gravitational effects on massive fermions during inflation

研究成果: Article同行評審

27 引文 斯高帕斯(Scopus)

摘要

We compute the one loop graviton contribution to the self-energy of a very light fermion on a locally de Sitter background. This result can be used to study the effect that a small mass has on the propagation of fermions through the sea of infrared gravitons generated by inflation. We employ dimensional regularization and obtain a fully renormalized result by absorbing all divergences with Bogliubov-Parasuik-Hepp-Zimmermann counterterms. An interesting technical aspect of this computation is the need for two noninvariant counterterms owing to the breaking of de Sitter invariance by our gauge condition.

原文English
文章編號104051
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
86
發行號10
DOIs
出版狀態Published - 2012 11月 20

All Science Journal Classification (ASJC) codes

  • 核能與高能物理
  • 物理與天文學(雜項)

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