Strings on pp-waves and Hadrons in (softly broken) N=1 gauge theories
Abstract
We study the Penrose limit of Type IIB duals of softly broken N=1 SU(N) gauge theories in four dimensions, obtained as deformations of the Maldacena-Nunez and Klebanov-Strassler backgrounds. We extract the string spectrum on the resulting pp-wave backgrounds and discuss some properties of the conjectured dual gauge theory hadrons, the so called "Annulons". The string zero-point energy on the light-cone is nontrivial, due to the loss of linearly realized worldsheet supersymmetry, and negative, even in the unbroken supersymmetric case. This causes the appearance of non-perturbative corrections to the hadronic mass spectrum. We briefly discuss the thermodynamic behavior of these string models, calculating the corresponding Hagedorn temperatures.
Keywords
Cite
@article{arxiv.hep-th/0307055,
title = {Strings on pp-waves and Hadrons in (softly broken) N=1 gauge theories},
author = {R. Apreda and F. Bigazzi and A. L. Cotrone},
journal= {arXiv preprint arXiv:hep-th/0307055},
year = {2009}
}
Comments
20 pages