ORDER ALPHA'2 EQUIVALENCE OF THE STRING EQUATIONS OF MOTION AND THE SIGMA-MODEL WEYL INVARIANCE CONDITIONS - DEPENDENCE ON THE DILATON FIELD

• Type: Article in International Scientific Journal
• Date: 1989

Authors

BENTO, MC (Author) Other; BERTOLAMI, O (Author) Other; HENRIQUES, AB (Author) Other; ROMAO, JC (Author) Other

Journal

Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 220

Pages: 113-120

ISSN: 0370-2693

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 13 Citations

Scopus - 10 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-001-SRE

DOI: 10.1016/0370-2693(89)90022-1

Abstract (EN): We determine the order ¿¿2 terms in the closed string effective actions, when the dilaton field is included, by comparison with the four-point string amplitudes, both in the S-matrix parametrization and in the ¿-model parametrization. We find that for the bosonic and heterotic string theories there are terms involving derivatives of the dilaton field which cannot be removed by field redefinitions and whose coefficients are non-zero. Our result is not in agreement with existing ¿-model computations. © 1989.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8