$Y(4260)$ as four-quark state
High Energy Physics - Phenomenology
2020-03-10 v1 Nuclear Theory
Abstract
We treat the resonance as a four-quark state in the framework of the covariant confining quark model. We study two choices of the interpolating current, either the molecular-type current which effectively corresponds to the product of and quark currents or tetraquark one. In both cases we calculate the widths of decays and . It is found that in both approches the mode is enhanced compared with the open charm modes. However the absolute value of the decay width obtained in molecular picture is arguably too large. On the other hand the value obtained in tetraquark picture is reasonable.
Cite
@article{arxiv.2003.04142,
title = {$Y(4260)$ as four-quark state},
author = {Anna Zuzana Dubnickova and Stanislav Dubnicka and Aidos Issadykov and Mikhail Alekseevich Ivanov and Andrej Liptaj},
journal= {arXiv preprint arXiv:2003.04142},
year = {2020}
}
Comments
12 pages, 1 figure