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Yukawa Couplings involving Excited Twisted Sector States for ZM× ZN Orbifolds

D. Bailin, A. Love, W. A. Sabra

hep-tharXiv:hep-th/9304066

Abstract

A study is made for ZM× ZN orbifolds of the modification of the form of the twisted sector Yukawa couplings when some of the states involved are excited twisted sectors rather than twisted sector ground states.

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