Grand unification and enhanced quantum gravitational effects
May, 20084 pages
Published in:
- Phys.Rev.Lett. 101 (2008) 171802
e-Print:
- 0805.0145 [hep-ph]
Report number:
- CP3-08-10
View in:
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Abstract: (arXiv)
In grand unified theories with large numbers of fields, renormalization effects significantly modify the scale at which quantum gravity becomes strong. This in turn can modify the boundary conditions for coupling constant unification, if higher dimensional operators induced by gravity are taken into consideration. We show that the generic size of these effects from gravity can be larger than the two-loop corrections typically considered in renormalization group analyses of unification. In some cases, gravitational effects of modest size can render unification impossible.- 04.60.-m
- 12.10.Kt
- 12.10.Dm
- quantum gravity: effect
- renormalization group
- grand unified theory: SU(5)
- grand unified theory: SO(10)
- supersymmetry
- boundary condition
- operator: higher-dimensional
References(24)
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