N=1 Matter from Fractional Branes

Marotta, Raffaele; Nicodemi, F.; Pettorino, R.; Pezzella, Franco; Sannino, Francesco

doi:10.1088/1126-6708/2002/09/010

Cited by 14 publications

(32 citation statements)

References 27 publications

(34 reference statements)

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“…This can be seen by isolating the contribution of the massless open and closed string states, respectively, in Eqs. (12) and (13), which are the only ones giving a divergence. In this way in the open string channel we get:…”

Section: Branes In External Fields: N = Orbifoldmentioning

confidence: 99%

Gauge/gravity correspondence from open/closed string duality

Vecchia

Liccardo

Marotta

et al. 2003

J. High Energy Phys.

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We compute the annulus diagram corresponding to the interaction of a fractional D3 brane with a gauge field on its world-volume and a stack of N fractional D3 branes on the orbifolds C 2 /Z 2 and C 3 /(Z 2 × Z 2 ). We show that its logarithmic divergence can be equivalently understood as due either to massless open string states circulating in the loop or to massless closed string states exchanged between two boundary states. This follows from the fact that, under open/closed string duality, massless states in the open and closed string channels are matched into each other without mixing with massive states. This explains why the perturbative properties of many gauge theories living on the worldvolume of less supersymmetric and nonconformal branes have been recently obtained from their corresponding supergravity solution.

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Section: Branes In External Fields: N = Orbifoldmentioning

confidence: 99%

Gauge/gravity correspondence from open/closed string duality

Vecchia

Liccardo

Marotta

et al. 2003

J. High Energy Phys.

Self Cite

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“…It was shown that the spectrum is discrete with a mass gap. For related works, see [13], [14], [15], [16], [17], [18], [19], [20], [21].…”

Section: Introductionmentioning

confidence: 99%

Meson spectroscopy from holomorphic probes on the warped deformed conifold

Kuperstein

2005

J. High Energy Phys.

123

224

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We study D7 brane probes holomorphically embedded in the Klebanov-Strassler model. Analyzing the κ-symmetry condition for D7 branes wrapping a 4-cycle of a deformed conifold we find configurations that do not break N = 1 supersymmetry of the background. We compute the fluctuations of the probe around one of these configurations and obtain the spectrum of vector and scalar flavored mesons in the dual gauge theory. The spectrum is discrete and exhibits a mass gap.

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“…Before doing that let us first extend the previous results to N = 1 super QCD that can be obtained as a particular case of the general one studied in Ref. [10]. In this case only the asymptotic behaviour for large distances of the classical solution has been explicitly obtained and this is sufficient for computing the gauge coupling constant and the θ angle of N = 1 super QCD.…”

Section: Fractional Branesmentioning

confidence: 91%