Two Loop Computation of the Four Particle Amplitude in Heterotic String Theory

Jengo, Roberto; Zhu, Chuan-Jie

doi:10.1016/0370-2693(88)91322-6

Two Loop Computation of the Four Particle Amplitude in Heterotic String Theory

Roberto Jengo
(
- SISSA, Trieste and
- INFN, Trieste
)
,
Chuan-Jie Zhu
(
- SISSA, Trieste
)

Jun, 1988

7 pages

Published in:

Phys.Lett.B 212 (1988) 313-319

Published: 1988

DOI:

10.1016/0370-2693(88)91322-6

Report number:

SISSA-91/88/EP

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Abstract: (Elsevier)

By using the hyperelliptic formalism we obtain an explicit integral formulafor the four-massless-particle scattering amplitude at two loops in heterotic string theory. We verify the main properties and in particular its finiteness. The corresponding expression for type II superstrings is also given.

MODEL: STRING
SUPERSYMMETRY
SCATTERING AMPLITUDE: HIGHER-ORDER
HIGHER-ORDER: SCATTERING AMPLITUDE
MATHEMATICAL METHODS: Riemann surface

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Figures(0)

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