New D = 6 , N = ( 1 , 1 ) Gauged Supergravity with Supersymmetric ( Minkowski ) 4 × S 2 Vacuum
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چکیده
We obtain a new gauged D = 6, N = (1, 1) pure supergravity by a generalised consistent Kaluza-Klein reduction of M-theory on K3×R. The reduction requires a conspiratory gauging of both the Cremmer-Julia type global (rigid) symmetry and the homogeneous rescaling symmetry of the supergravity equations of motion. The gauged supergravity is different from the Romans D = 6 gauged supergravity in that the four vector fields in our new theory are all abelian. We show that it admits a supersymmetric (Minkowski) 4 × S 2 vacuum, which can be lifted to D = 11 where it becomes the near-horizon geometry of two intersecting M5-branes wrapping on a supersymmetric two-cycle of K3.
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تاریخ انتشار 2003