Browsing by Author "Forcella, Davide"

Now showing 1 - 4 of 4
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    BPS Partition Functions for Quiver Gauge Theories: Counting Fermionic Operators
    (2007-05-31T11:19:02Z) Forcella, Davide; Physics; Elementary Particle Theory
    We discuss a general procedure to obtain 1/2 BPS partition functions for generic N = 1 quiver gauge theories. These functions count the gauge invari- ant operators (bosonic and fermionic), charged under all the global symmetries (mesonic and baryonic), in the chiral ring of a given quiver gauge theory. In particular we discuss the inclusion of the spinor degrees of freedom in the partition functions.
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    Comments on the non-conformal gauge theories dual to Ypq manifolds
    (2006-05-30T15:40:33Z) Brini, Andrea; Forcella, Davide; Physics; Elementary Particle Theory
    We study the infrared behavior of the entire class of Y(p,q) quiver gauge theories. The dimer technology is exploited to discuss the duality cascades and support the general belief about a runaway behavior for the whole family. We argue that a baryonic classically flat direction is pushed to infinity by the appearance of ADS-like terms in the effective superpotential. We also study in some examples the IR regime for the L(a,b,c) class showing that the same situation might be reproduced in this more general case as well.
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    Counting BPS Baryonic Operators in CFTs with Sasaki-Einstein duals
    (2006-11-23T12:29:52Z) Butti, Agostino; Forcella, Davide; Zaffaroni, Alberto; Physics; Elementary Particle Theory
    We study supersymmetric D3 brane configurations wrapping internal cycles of type II backgrounds AdS(5) x H for a generic Sasaki-Einstein manifold H. These configurations correspond to BPS baryonic operators in the dual quiver gauge theory. In each sector with given baryonic charge, we write explicit partition functions counting all the BPS operators according to their flavor and R-charge. We also show how to extract geometrical information about H from the partition functions; in particular, we give general formulae for computing volumes of three cycles in H.
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    Deformations of conformal theories and non-toric quiver gauge theories
    (2006-07-26T10:00:19Z) Butti, Agostino; Forcella, Davide; Zaffaroni, Alberto; Physics; Elementary Particle Theory
    We discuss several examples of non-toric quiver gauge theories dual to Sasaki-Einstein manifolds with U(1)^2 or U(1) isometry. We give a general method for constructing non-toric examples by adding relevant deformations to the toric case. For all examples, we are able to make a complete comparison between the prediction for R-charges based on geometry and on quantum field theory. We also give a general discussion of the spectrum of conformal dimensions for mesonic and baryonic operators for a generic quiver theory; in the toric case we make an explicit comparison between R-charges of mesons and baryons.