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arXiv · hep-th/9304066

Yukawa Couplings involving Excited Twisted Sector States for ${\bf Z}_M\times {\bf Z}_N$ Orbifolds

D. Bailin·A. Love·W. A. Sabra
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Abstract

A study is made for ${\bf Z}_M\times {\bf Z}_N$ 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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D. Bailin, A. Love, W. A. Sabra. 1993-05-07. Yukawa Couplings involving Excited Twisted Sector States for ${\bf Z}_M\times {\bf Z}_N$ Orbifolds. https://doi.org/10.1016/0370-2693(93)90542-p

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