Elementary Particles and FieldsNo Access

YUKAWA COUPLINGS FOR BOSONIC Z_N ORBIFOLDS: THEIR MODULI AND TWISTED SECTOR DEPENDENCE

S. STIEBERGER

Physik Department, Technische Universität München, D-8046 Garching, Germany

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D. JUNGNICKEL

Physik Department, Technische Universität München, D-8046 Garching, Germany

Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, P.O. Box 401212, D-8000 München, Germany

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J. LAUER

Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, D-6900 Heidelberg, Germany

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M. SPALIŃSKI

Physik Department, Technische Universität München, D-8046 Garching, Germany

Alexander von Humboldt Fellow. On leave from the Institute of Theoretical Physics, Warsaw University.

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https://doi.org/10.1142/S0217732392002457Cited by:38 (Source: Crossref)

Abstract

The three-point correlation functions with twist fields are determined for bosonic Z_N orbifolds. Both the choice of the modular background (compatible with the twist) and of the (higher) twisted sectors involved are fully general. We point out a necessary restriction on the set of instantons contributing to twist field correlation functions not obtained in previous calculations. Our results show that the theory is target space duality invariant.

Supported by Deutsche Forschungsgemeinschaft.