Gravitational correction to running of gauge couplings

Sean P. Robinson, Frank Wilczek

Research output: Contribution to journalArticlepeer-review

140 Scopus citations


We calculate the contribution of graviton exchange to the running of gauge couplings at lowest nontrivial order in perturbation theory. Including this contribution in a theory that features coupling constant unification does not upset this unification, but rather shifts the unification scale. When extrapolated formally, the gravitational correction renders all gauge couplings asymptotically free.

Original languageEnglish (US)
Article number231601
JournalPhysical Review Letters
Issue number23
StatePublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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