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Coupling Selection Rules in Heterotic Orbifold Compactifications

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Mathematics and Applications of Branes in String and M-theory

Heterotic orbifolds provide a simple, globally consistent framework in which one can obtain the MSSM particle spectrum with no chiral exotics from string theory. In order to understand the dynamical aspects and phenomenology of these compactifications, such as the decoupling of vector-like exotics, moduli stabilization, particle masses and couplings, we must compute the couplings in the corresponding low energy effective field theory.

We study L-point string correlation functions and thus derive string selection rules, which determine the allowed couplings in the superpotential of the low energy effective supergravity theory.

This talk is part of the Isaac Newton Institute Seminar Series series.

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