Quantum Gravitational Effects and Grand Unification.

Calmet, Xavier, Hsu, Stephen DH and Reeb, David (2008) Quantum Gravitational Effects and Grand Unification. In: 16th international Conference on Supersymmetry and the Unification of Fundamental Interactions, JUN 16-21, 2008., Seoul, SOUTH KOREA..

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Abstract

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.

Item Type: Conference or Workshop Item (Paper)
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Xavier Calmet
Date Deposited: 06 Feb 2012 19:57
Last Modified: 22 Mar 2012 15:14
URI: http://sro.sussex.ac.uk/id/eprint/23184
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