Gravitational Correction to Running of Gauge Couplings

Journal Article · Fri Jun 16 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.231601· OSTI ID:20777283

Robinson, Sean P; Wilczek, Frank ^[1]

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1. Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

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.

• OSTI ID: 20777283
• Journal Information: Physical Review Letters, Vol. 96, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.96.231601; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
COUPLING CONSTANTS
GAUGE INVARIANCE
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM GRAVITY