English

AdS/QCD Phenomenological Models from a Back-Reacted Geometry

High Energy Physics - Phenomenology 2010-10-27 v2

Abstract

We construct a fully back-reacted holographic dual of a four-dimensional field theory which exhibits chiral symmetry breaking. Two possible models are considered by studying the effects of a five-dimensional field, dual to the qqˉq\bar{q} operator. One model has smooth geometry at all radii and the other dynamically generates a cutoff at finite radius. Both of these models satisfy Einstein's field equations. The second model has only three free parameters, as in QCD, and we show that this gives phenomenologically consistent results. We also discuss the possibility that in order to obtain linear confinement from a back-reacted model it may be necessary to consider the condensate of a dimension two operator.

Keywords

Cite

@article{arxiv.hep-ph/0611227,
  title  = {AdS/QCD Phenomenological Models from a Back-Reacted Geometry},
  author = {Jonathan P. Shock and Feng Wu and Yue-Liang Wu and Zhi-Feng Xie},
  journal= {arXiv preprint arXiv:hep-ph/0611227},
  year   = {2010}
}

Comments

13 pages, 4 figures, Replaced with minor corrections