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Prescriptions for off-shell bosonic string amplitudes

  • Luigi Cappiello
  • Antonella Liccardo
  • Raffaele Marotta
  • Roberto Pettorino
  • Franco Pezzella
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 525)

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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Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • Luigi Cappiello
    • 1
  • Antonella Liccardo
    • 1
  • Raffaele Marotta
    • 2
  • Roberto Pettorino
    • 1
  • Franco Pezzella
    • 1
  1. 1.Dipartimento di Scienze FisicheUniversità di Napoli and I.N.F.N., Sezione di Napoli, Mostra d’OltremareNapoliItaly
  2. 2.NorditaCopenhagen ØDenmark

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