Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-10-23
JHEP 0804:037,2008
Physics
High Energy Physics
High Energy Physics - Theory
LaTex, 42 pages, 3 figures, uses JHEP3
Scientific paper
10.1088/1126-6708/2008/04/037
We study the embedding of spacetime filling D7-branes in beta-deformed backgrounds which, according to the AdS/CFT dictionary, corresponds to flavoring beta-deformed N=4 super Yang-Mills. We consider supersymmetric and more general non-supersymmetric three parameter deformations. The equations of motion for quadratic fluctuations of a probe D7-brane wrapped on a deformed three-sphere exhibit a non-trivial coupling between scalar and vector modes induced by the deformation. Nevertheless, we manage to solve them analytically and find that the mesonic mass spectrum is discrete, with a mass gap and a Zeeman-like splitting occurs. Finally we propose the action for the dual field theory as obtained by star-product deformation of super Yang-Mills with fundamental matter.
Penati Silvia
Pirrone Marco
Ratti CarloAlberto
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