Tetraquarks with charm in coupled-channel formalism
High Energy Physics - Phenomenology
2008-12-30 v2
Abstract
The relativistic four-quark equations are found in the framework of coupled-channel formalism. The dynamical mixing of the meson-meson states with the four-quark states is considered. The approximate solutions of these equations using the method based on the extraction of leading singularities of the amplitudes are obtained. The four-quark amplitudes of cryptoexotic mesons including the quarks of three flavours (u, d, s) and the charmed quark are constructed. The poles of these amplitudes determine the masses of tetraquarks. The mass values of low-lying tetraquarks are calculated.
Keywords
Cite
@article{arxiv.0804.4567,
title = {Tetraquarks with charm in coupled-channel formalism},
author = {S. M. Gerasyuta and V. I. Kochkin},
journal= {arXiv preprint arXiv:0804.4567},
year = {2008}
}
Comments
21 pages, pdf, minor typos in the text corrected