Hadronic Form Factor Models and Spectroscopy Within the Gauge/Gravity Correspondence
Abstract
We show that the nonperturbative light-front dynamics of relativistic hadronic bound states has a dual semiclassical gravity description on a higher dimensional warped AdS space in the limit of zero quark masses. This mapping of AdS gravity theory to the boundary quantum field theory, quantized at fixed light-front time, allows one to establish a precise relation between holographic wave functions in AdS space and the light-front wavefunctions describing the internal structure of hadrons. The resulting AdS/QCD model gives a remarkably good accounting of the spectrum, elastic and transition form factors of the light-quark hadrons in terms of one parameter, the QCD gap scale. The light-front holographic approach described here thus provides a frame-independent first approximation to the light-front Hamiltonian problem for QCD. This article is based on lectures at the Niccolo Cabeo International School of Hadronic Physics, Ferrara, Italy, May 2011.
Cite
@article{arxiv.1203.4025,
title = {Hadronic Form Factor Models and Spectroscopy Within the Gauge/Gravity Correspondence},
author = {Guy F. de Teramond and Stanley J. Brodsky},
journal= {arXiv preprint arXiv:1203.4025},
year = {2012}
}
Comments
Invited lectures presented by GdT at the Niccolo Cabeo International School of Hadronic Physics, Ferrara, Italy, May 2011 (73 pages, 14 figures)