Selected strong decay modes of Y(4260)
High Energy Physics - Phenomenology
2014-03-28 v3
Abstract
In present work the Y(4260) resonance is considered as a weakly bound state of a pseudoscalar D and an axial D1 charm meson. We consider the two-body decay Y(4260) -> Zc(3900) + pi where Zc(3900) is treated as hadron molecule as well. Moreover we compute the Y(4260) decay modes J/psi pi(+) pi(-), recently observed by the BESIII Collaboration, and psi(2S) pi(+) pi(-). In the last process both the contact diagram with D D1 -> psi(nS) pi(+) pi(-) and the resonance diagram with D D1 -> Zc(3900) + pi -> psi(nS) pi(+) pi(-) are taken into account.
Cite
@article{arxiv.1310.4373,
title = {Selected strong decay modes of Y(4260)},
author = {Yubing Dong and Amand Faessler and Thomas Gutsche and Valery E. Lyubovitskij},
journal= {arXiv preprint arXiv:1310.4373},
year = {2014}
}
Comments
11 pages