The edge of supersymmetry: Stability walls in heterotic theory

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2009-06-22

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Elsevier

Abstract

We explicitly describe, in the language of four-dimensional N = 1 supersymmetric field theory, what happens when the moduli of a heterotic Calabi-Yau compactification change so as to make the internal non-Abelian gauge fields non-supersymmetric. At the edge of the region in Kahler moduli space where supersymmetry can be preserved, an additional anomalous U(1) gauge symmetry appears in the four-dimensional theory. The D-term contribution to the scalar potential associated to this U(1) attempts to force the system back into a supersymmetric configuration and provides a consistent low-energy description of gauge bundle stability.

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Astronomy & Astrophysics, Physics, Nuclear, Physics, Particles & Fields, Physics, PHYSICS, MULTIDISCIPLINARY, STANDARD MODEL, STRING THEORY, COMPACTIFICATIONS, VACUA, COUPLINGS, TERMS, SU(5), GUT

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