Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-01-28
JHEP 0204:011,2002
Physics
High Energy Physics
High Energy Physics - Theory
1+31 pages, one figure. v2: minor clarifications, refs added
Scientific paper
10.1088/1126-6708/2002/04/011
We study a deformation of the type IIB Maldacena-Nunez background which arises as the near-horizon limit of NS5 branes wrapped on a two-cycle. This background is dual to a "little string theory" compactified on a two-sphere, a theory which at low energies includes four-dimensional N = 1 super Yang-Mills theory. The deformation we study corresponds to a mass term for some of the scalar fields in this theory, and it breaks supersymmetry completely. In the language of seven-dimensional SO(4) gauged supergravity the deformation involves (at leading order) giving a VEV, depending only on the radial coordinate, to a particular scalar field. We explicitly construct the corresponding solution at leading order in the deformation, both in seven-dimensional and in ten-dimensional supergravity, and we verify that it completely breaks supersymmetry. Since the original background had a mass gap and we are performing a small deformation, the deformed background is guaranteed to be stable even though it is not supersymmetric.
Aharony Ofer
Schreiber Ehud
Sonnenschein Jacob
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