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Chiral symmetry breaking and pions in nonsupersymmetric gauge / gravity duals
We study gravity duals of large N nonsupersymmetric gauge theories with matter in the fundamental representation by introducing a D7-brane probe into deformed AdS backgrounds. In particular, weExpand
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Mesons in gauge/gravity duals
Abstract.We review recent progress in studying mesons within gauge/gravity duality, in the context of adding flavour degrees of freedom to generalizations of the AdS/CFT correspondence. Our mainExpand
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Orientifolds, Branes, and Duality of 4D Gauge Theories
Recently, a D-brane construction in type IIA string theory was shown to yield the electric/magnetic duality of four-dimensional N = 1 supersymmetric U(Nc) gauge theories with Nf flavours of quark. WeExpand
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Vacuum alignment and phase structure of holographic bi-layers
Abstract We study the D3/probe D5 system with two domain wall hypermultiplets. The conformal symmetry can be broken by a magnetic field, B (or running coupling), which promotes condensation of theExpand
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Limits on a composite Higgs boson.
Precision electroweak data are generally believed to constrain the Higgs boson mass to lie below approximately 190 GeV at 95% confidence level. The standard Higgs model is, however, trivial and canExpand
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Holographic description of the phase diagram of a chiral symmetry breaking gauge theory
The large N$ \mathcal{N} = 4 $ gauge theory with quenched $ \mathcal{N} = 2 $ quark matter in the presence of a magnetic field displays chiral symmetry breaking. We study the temperature and chemicalExpand
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Holography of the conformal window
Inspired by the model of Jarvinen and Kiritsis, we present a simple holographic model for the onset of chiral symmetry breaking at the edge of the conformal window in QCD in the Veneziano limit. OurExpand
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The ChaMP Extended Stellar Survey (ChESS): photometric and spectroscopic properties of serendipitously detected stellar X-ray sources
We present 348 X-ray-emitting stars identified from correlating the Extended Chandra Multiwavelength Project (ChaMP), a wide-area serendipitous survey based on archival X-ray images, with the SloanExpand
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Dynamic AdS/QCD and the spectrum of walking gauge theories
We present a simple AdS/QCD model in which the formation of the chiral condensate is dynamically determined. The gauge dynamics is input through the running of the quark bilinear’s anomalousExpand
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Translational symmetry breaking in field theories and the cosmological constant
We argue, at a very basic effective field theory level, that higher dimension operators in scalar theories that break symmetries at scales close to their ultraviolet completion cutoff include termsExpand
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