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arXiv · hep-th/9812152

Prescriptions for Off-Shell Bosonic String Amplitudes

L. Cappiello·A. Liccardo·R. Pettorino·F. Pezzella·R. Marotta
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Abstract

We give, in the framework of the bosonic string theory, simple prescriptions for computing, at tree and one-loop levels, off-shell string amplitudes for open and closed string massless states. In particular we obtain a tree amplitude for three open strings that in the field theory limit coincides with the three-gluon vertex in the usual covariant gauge and two-string one-loop amplitudes satisfying the property of transversality.

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L. Cappiello, A. Liccardo, R. Pettorino, F. Pezzella, R. Marotta. 1999-01-28. Prescriptions for Off-Shell Bosonic String Amplitudes. https://doi.org/10.1007/bfb0104267

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