Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-12-17
Lect.Notes Phys. 525 (1999) 466-474
Physics
High Energy Physics
High Energy Physics - Theory
11 pages, LaTeX, to appear in the proceedings of the workshop "Quantum Aspects of Gauge Theories, Supersymmetry and Unificatio
Scientific paper
10.1007/BFb0104267
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.
Cappiello Luigi
Liccardo Antonella
Marotta Raffaele
Pettorino Roberto
Pezzella Franco
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