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Vertex Operators of Open String States in the Intersecting D-brane World

Huan-Xiong Yang, Mingxing Luo, Wei-Shui Xu

hep-pharXiv:hep-ph/0209099

Abstract

Starting with a new bosonization scheme for the βγCFT of the super-conformal ghosts, vertex operators are constructed for massless open string states in the intersecting D-brane world. These vertex operators satisfy all requirements for a consistent RNS formulation of superstring theories, so GSO projections can be properly taken.

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