Gravitational Form Factors in the Axial Sector from an AdS/QCD Model
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We calculate the stress tensor, or energy-momentum tensor, form factors of the pion and of axial vector mesons in the chiral limit of a hard wall AdS/CFT model of QCD. One (of the two) pion gravitational form factors is directly related to the second moment of the pion generalized parton distribution, thus providing a sum rule for the latter. As was also the case for vector mesons, both the pion and the axial vector mesons appear strikingly more compact measured by the gravitational form factor than by the electromagnetic form factor.
Cite
@article{arxiv.0804.0214,
title = {Gravitational Form Factors in the Axial Sector from an AdS/QCD Model},
author = {Zainul Abidin and Carl E. Carlson},
journal= {arXiv preprint arXiv:0804.0214},
year = {2008}
}
Comments
6 pages, 1 figure