Large-$N_c$ QCD and tetraquarks
High Energy Physics - Phenomenology
2019-09-17 v1
Abstract
Tetraquark properties are examined in the limit of large of color in QCD. The qualitative differences between molecular and compact tetraquarks are outlined. Consequences of the possible existence of compact tetraquarks are analyzed and shown to lead to upper bounds in the -behavior of their decay widths. Open questions on theoretical grounds, related to the dynamics of systems composed of two quarks and two antiquarks, are addressed.
Cite
@article{arxiv.1811.07613,
title = {Large-$N_c$ QCD and tetraquarks},
author = {Hagop Sazdjian},
journal= {arXiv preprint arXiv:1811.07613},
year = {2019}
}
Comments
12 pages, 10 figures. Plenary talk given at the Conference Quark Confinement and the Hadron Spectrum XIII, 31 July - 6 August 2018, Maynooth, Ireland