Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-12-12
Nucl.Phys. B523 (1998) 623-662
Physics
High Energy Physics
High Energy Physics - Theory
41 pages, latex, no figures; change of title and abstract, some comments added; to appear in Nucl. Phys. B
Scientific paper
10.1016/S0550-3213(98)00271-5
We analyse completely the BRST cohomology on local functionals for two dimensional sigma models coupled to abelian world sheet gauge fields, including effective bosonic D-string models described by Born-Infeld actions. In particular we prove that the rigid symmetries of such models are exhausted by the solutions to generalized Killing vector equations which we have presented recently, and provide all the consistent first order deformations and candidate gauge anomalies of the models under study. For appropriate target space geometries we find nontrivial deformations both of the abelian gauge transformations and of the world sheet diffeomorphisms, and antifield dependent candidate anomalies for both types of symmetries separately, as well as mixed ones.
Brandt Friedemann
Gomis Joaquim
Simon Jonathan
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