Theta angle in holographic QCD
High Energy Physics - Phenomenology
2017-04-05 v1 High Energy Physics - Theory
Abstract
V-QCD is a class of effective holographic models for QCD which fully includes the backreaction of quarks to gluon dynamics. The physics of the theta-angle and the axial anomaly can be consistently included in these models. We analyze their phase diagrams over ranges of values of the quark mass, N_f/N_c, and theta, computing observables such as the topological susceptibility and the meson masses. At small quark mass, where effective chiral Lagrangians are reliable, they agree with the predictions of V-QCD.
Keywords
Cite
@article{arxiv.1611.07312,
title = {Theta angle in holographic QCD},
author = {Matti Jarvinen},
journal= {arXiv preprint arXiv:1611.07312},
year = {2017}
}
Comments
10 pages, 4 figures, contribution to the proceedings of the XIIth Quark Confinement and the Hadron Spectrum, 29 August to 3 September 2016, Thessaloniki, Greece