Superspace Type II 4D Supergravity from Type II Superstring
Abstract
Description
We derive the equations of motion of type II 4D supergravity in superspace. This is achieved by coupling the Type II Berkovits' hybrid superstring to an N=2 curved background and requiring that the sigma-model has N=(2,2) superconformal invariance at one loop. We show that there are no anomalies in the fermionic OPE's and the complete set of compensator's equations is derived from the energy-momentum tensor. The equations of motion describe a hypertensorial and vectorial multiplet coupled to a U(1)\times U(1) N=2 Poincarè Supergravity.
13 pages, revtex4. Based on work presented at 4th International Winter Conference on Mathematical Methods in Physics (WC 2004), Rio de Janeiro, Brazil, 9-13 Aug 2004
13 pages, revtex4. Based on work presented at 4th International Winter Conference on Mathematical Methods in Physics (WC 2004), Rio de Janeiro, Brazil, 9-13 Aug 2004