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N=1 SQCD-like theories with N-f massive flavors from AdS/CFT and beta functions

By Alejandro Barranco, Elisabetta Pallante and Jorge G. Russo

Abstract

We study new supergravity solutions related to large-N-c N = 1 supersymmetric gauge field theories with a large number N-f of massive flavors. We use a recently proposed framework based on configurations with N-c color D5 branes and a distribution of N-f flavor D5 branes, governed by a function NfS(r). Although the system admits many solutions, under plausible physical assumptions the relevant solution is uniquely determined for each value of x equivalent to N-f/N-c. In the IR region, the solution smoothly approaches the deformed Maldacena-Nunez solution. In the UV region it approaches a linear dilaton solution. For x -infinity in the IR. For x = 2, beta(g) has a UV fixed point at strong coupling, suggesting the existence of an IR fixed point at a lower value of the coupling. We argue that the solutions with x > 2 describe a "Seiberg dual" picture where N-f - 2N(c) flips sign

Topics: Gauge-gravity correspondence, AdS-CFT Correspondence, YANG-MILLS THEORIES, GAUGE-THEORIES
Publisher: 'Springer Science and Business Media LLC'
Year: 2011
DOI identifier: 10.1007/jhep09(2011)086
OAI identifier:
Provided by: NARCIS
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