Generating dyonic solutions in 5D Einstein-dilaton gravity with antisymmetric forms and dyonic black rings

Abstract

We consider five-dimensional Einstein-dilaton gravity with antisymmetric forms. Assuming staticity and a restriction on the dilaton coupling parameters, we derive a four-dimensional sigma model with a target space $SL(2,R)/SO(1,1)\ifmmode\times\else\texttimes\fi{}SL(2,R)/SO(1,1)$. On this basis, using the symmetries of the target space, we develop a solution-generating technique and employ it to construct new asymptotically flat and nonflat dyonic black rings solutions. The solutions are analyzed and the basic physical quantities are calculated.