Published March 1988 | Version v1
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Modular invariance and the two-loop vanishing of the cosmological constant

Creators

  • 1. Ecole Normale Superieure, 75 - Paris (France). Lab. de Physique Theorique
  • 2. International School of Advanced Studies, Trieste (Italy)

Description

With a moduli independent choice of super-Beltrami differentials, we show, by using the genus hyperelliptic formalism, that the requirement of modular invariance determines completely the two-loop amplitudes of the heterotic string theory for arbitrary external legs and that the cosmological constant is zero pointwise in moduli space. (author). 14 refs

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Additional details

Publishing Information

Imprint Pagination
13 p.
Report number
IC--88/51

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
19065150
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
AMPLITUDES; COSMOLOGICAL CONSTANT; INVARIANCE PRINCIPLES; RIEMANN SPACE; STRING MODELS; SUPERSYMMETRY
Descriptors DEC
EXTENDED PARTICLE MODEL; MATHEMATICAL MODELS; MATHEMATICAL SPACE; PARTICLE MODELS; SPACE; SYMMETRY