Prescriptions for Off-Shell Bosonic String Amplitudes
arXiv:hep-th/9812152 · doi:10.1007/BFb0104267
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.
arXiv comment11 pages, LaTeX, to appear in the proceedings of the workshop "Quantum Aspects of Gauge Theories, Supersymmetry and Unification", Corfu (Greece), 20-26 September 1998. Eq. (12) and numerical factors in eqs. (13) and (16) corrected; some minor changes and references added
References in corpus (8)
- Dirichlet-Branes and Ramond-Ramond Charges
- String-Based Methods in Perturbative Gravity
- String techniques for the calculation of renormalization constants in field theory
- Multiloop World-Line Green Functions from String Theory
- Off-shell Closed String Amplitudes: Towards a Computation of the Tachyon Potential
- Consistent Off-Shell Tree String Amplitudes
- D-Branes and Physical States
- On off-shell bosonic string amplitudes