Mesons in marginally deformed AdS/CFT

Abstract

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.

LaTex, 42 pages, 3 figures, uses JHEP3

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Cited by in corpus (11)

• Mesons in Gauge/Gravity Duals - A Review
• On deformed gauge theories and their string/M-theory duals
• Meson Spectra and Magnetic Fields in the Sakai-Sugimoto Model
• Semi-classical Strings in Sasaki-Einstein Manifolds
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• Mesons from (non) Abelian T-dual backgrounds
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• Holographic Gauge Theory with Maxwell Magnetic Field
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• Chiral Dynamics and Meson with Non-commutative Dipole Field in Gauge/Gravity Dual
• Hyperfine Splitting and the Zeeman Effect in Holographic Heavy-Light Mesons