Calmet, Xavier
[UCL]
Hsu, Stephen D.H.
Reeb, David
(eng)
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, and the uncertainty in, 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.
Comment: 3 pages, to appear in the proceedings of 16th International
Conference on Supersymmetry and Unification of Fundamental Interactions
(SUSY08), Seoul, Korea, June 16-21 2008
Bibliographic reference |
Calmet, Xavier ; Hsu, Stephen D.H. ; Reeb, David. Quantum Gravitational Effects and Grand Unification. In: A I P Conference Proceedings, Vol. 1078, p. 432-434 (2009) |
Permanent URL |
http://hdl.handle.net/2078/31768 |