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hep-th1998
Properties of Gauged Sigma Models
R. Percacci, E. Sezgin
Nonlinear sigma models arise in supergravity theories with or without matter couplings in various dimensions and they are important in understanding the duality symmetries of M-the…
hep-th1993
The effective potential for the conformal factor in the standard model and beyond
R. Percacci
There is a general mechanism by which certain matter fields coupled to gravity can generate a nontrivial effective potential for the conformal factor of the metric. It is based on…