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One-loop effective action in orbifold compactifications
2008
Journal of High Energy Physics
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We employ the covariant background formalism to derive generic expressions for the one-loop effective action in field theoretic orbifold compactifications. The contribution of each orbifold sector is given by the effective action of its fixed torus with a shifted mass matrix. We thus study in detail the computation of the heat kernel on tori. Our formalism manifestly separates UV sensitive (local) from UV-insensitive (nonlocal) renormalization. To exemplify our methods, we study the effective
doi:10.1088/1126-6708/2008/08/097
fatcat:5i2ydszbivdylbiodksyvly7eu