An AdS/QCD model from Sen's tachyon action
High Energy Physics - Phenomenology
2010-07-05 v2 High Energy Physics - Theory
Abstract
We construct a new, simple phenomenological model along the lines of AdS/QCD. The essential new ingredient is the brane-antibrane effective action including the open string tachyon proposed by Sen. Chiral symmetry breaking happens because of tachyon dynamics. We fit a large number of low-spin meson masses at the 10%-15% level. The only free parameters involved in the fits correspond to the overall QCD-scale and the quark masses. Several aspects of previous models are qualitatively improved.
Cite
@article{arxiv.1003.2377,
title = {An AdS/QCD model from Sen's tachyon action},
author = {Ioannis Iatrakis and Elias Kiritsis and Angel Paredes},
journal= {arXiv preprint arXiv:1003.2377},
year = {2010}
}
Comments
9 pages, references added, discussions improved