Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-10-18
Phys.Rev. D61 (2000) 084028
Physics
High Energy Physics
High Energy Physics - Theory
46 pages, full postscript also available from http://phyweb.lbl.gov/theorygroup/papers/43259.ps
Scientific paper
10.1103/PhysRevD.61.084028
The on-shell regularization of the one-loop divergences of supergravity theories is generalized to include a dilaton of the type occurring in effective field theories derived from superstring theory, and the superfield structure of the one-loop corrections is given. Field theory anomalies and quantum contributions to soft supersymmetry breaking are discussed. The latter are sensitive to the precise choice of couplings that generate Pauli-Villars masses, which in turn reflect the details of the underlying theory above the scale of the effective cut-off. With a view to the implementation the Green-Schwarz and other mechanisms for canceling field theory anomalies under a U(1) gauge transformation and under the T-duality group of modular transformations, we show that the K\"ahler potential renormalization for the untwisted sector of orbifold compactification can be made invariant under these groups.
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