Could $Z_{c}(3900)$ be a $I^{G}J^{P}=1^{+}1^{+}$ $D^{*}\bar{D}$ molecular state?
High Energy Physics - Phenomenology
2015-06-15 v3 High Energy Physics - Experiment
Abstract
We investigate the nature of the recently observed narrow resonance , which is assumed to be a molecular state with quantum numbers . Using QCD sum rules, we consider contributions up to dimension eight in the operator product expansion and work at the leading order in . The mass we arrived at is , which coincides with the mass of .
Cite
@article{arxiv.1304.1850,
title = {Could $Z_{c}(3900)$ be a $I^{G}J^{P}=1^{+}1^{+}$ $D^{*}\bar{D}$ molecular state?},
author = {Chun-Yu Cui and Xin-Hua Liao and Yong-Lu Liu and Ming-Qiu Huang},
journal= {arXiv preprint arXiv:1304.1850},
year = {2015}
}
Comments
8 pages, 5 figures. accepted by JPG. arXiv admin note: substantial text overlap with arXiv:1107.1343