On off-shell bosonic string amplitudes

Abstract

We give a simple prescription for computing, in the framework of the bosonic string theory, off-shell one-loop amplitudes with any number of external massless particles, both for the open and for the closed string. We discuss their properties and, in particular, for the two-string one-loop amplitudes we show their being transverse.

12 pages, Latex. One reference added. Introduction and conclusions expanded. Some other minor changes in the text

References in corpus (4)

• Dirichlet-Branes and Ramond-Ramond Charges
• String techniques for the calculation of renormalization constants in field theory
• Multiloop World-Line Green Functions from String Theory
• D-Branes and Physical States

Cited by in corpus (9)

• String Theory and Noncommutative Field Theories at One Loop
• Scalar field theory limits of bosonic string amplitudes
• Consistent Off-Shell Tree String Amplitudes
• Two-Loop ${\varphi }^4$-Diagrams from String Theory
• Systematics of one-loop Yang-Mills diagrams from bosonic string amplitudes
• Prescriptions for Off-Shell Bosonic String Amplitudes
• Off-shell amplitudes for nonoriented closed strings
• Off-shell tachyon amplitudes: analyticity and projective invariance
• On the gauge chosen by the bosonic open string