SCHWINGER TERMS IN WEYL-INVARIANT AND DIFFEOMORPHISM-INVARIANT 2D SCALAR FIELD-THEORY

Authors
ADAM C ROSSINI GL
Citation
C. Adam et Gl. Rossini, SCHWINGER TERMS IN WEYL-INVARIANT AND DIFFEOMORPHISM-INVARIANT 2D SCALAR FIELD-THEORY, Physical review. D. Particles and fields, 57(8), 1998, pp. 4833-4838
Citations number
16
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
57
Issue
8
Year of publication
1998
Pages
4833 - 4838
Database
ISI
SICI code
0556-2821(1998)57:8<4833:STIWAD>2.0.ZU;2-6
Abstract
We compute the Schwinger terms in the energy-momentum tensor commutato r algebra from the anomalies present in Weyl-invariant and diffeomorph ism-invariant effective actions for two dimensional massless scalar fi elds in a gravitational background. We find that the Schwinger terms a re not sensitive to the regularization procedure and that they are ind ependent of the background metric.