Narrow-width tetraquarks in large-$N_{\mathrm{c}}^{}$ QCD
High Energy Physics - Phenomenology
2018-08-13 v1
Abstract
The properties of possibly existing tetraquarks are studied in the large- limit of QCD by means of four-point correlation functions of meson currents.The necessity of a detailed analysis of the singularities of Feynman diagrams, by means of the Landau equations, to recognize those diagrams that might contribute to the formation of tetraquark states, is emphasized. It is found, in general, that tetraquarks, if they exist, should have narrow widths of the order of .
Keywords
Cite
@article{arxiv.1711.07691,
title = {Narrow-width tetraquarks in large-$N_{\mathrm{c}}^{}$ QCD},
author = {Wolfgang Lucha and Dmitri Melikhov and Hagop Sazdjian},
journal= {arXiv preprint arXiv:1711.07691},
year = {2018}
}
Comments
8 pages, 9 figures. Talk given at the 6th International Conference on New Frontiers in Physics, 17-29 August 2017, Kolymbari, Crete, Greece