Light-front holographic QCD with generic dilaton profile
Abstract
We generalize the soft-wall and hard-wall models to a light-front holographic QCD model with a generic dilaton profile. The effective potential induced by a higher power dilaton profile is interpreted as a stronger color confinement at long distance, and it gradually evolves to the hard-wall model when the power increases to infinity. As an application, we investigate the exotic meson states recently discovered in experiments in the generic soft-wall model with a higher power dilaton profile, and the results are in agreement with the spectra of the exotic mesons. Our calculation indicates a weaker interaction at short distance and a stronger interaction at large distance for the components in the exotic mesons. The generic dilaton profile deserves further scrutiny for understanding the strong interaction and for applications.
Keywords
Cite
@article{arxiv.1604.08463,
title = {Light-front holographic QCD with generic dilaton profile},
author = {Zhaoheng Guo and Tianbo Liu and Bo-Qiang Ma},
journal= {arXiv preprint arXiv:1604.08463},
year = {2016}
}
Comments
5 latex pages, 3 figures, final version for publication