Berkovits, N.2014-05-202014-05-201996-11-28Physics Letters B. Amsterdam: Elsevier B.V., v. 388, n. 4, p. 743-752, 1996.0370-2693http://hdl.handle.net/11449/34584The free action for massless Ramond-Ramond fields is derived from closed superstring field theory using the techniques of Siegel and Zwiebach. For the uncompactified Type IIB superstring, this gives a manifestly Lorentz-covariant action for a self-dual five-form field strength. Upon compactification to four dimensions, the action depends on a U(1) field strength from 4D N = 2 supergravity. However, unlike the standard Maxwell action, this action is manifestly invariant under the electromagnetic duality transformation which rotates F-mn into epsilon(mnpq)F(pq).743-752engArtigo10.1016/S0370-2693(96)01217-8WOS:A1996VV48100011Acesso restrito