%0 Journal Article
%T Could $Z_{c}(3900)$ be a $I^{G}J^{P}=1^{+}1^{+}$ $D^{*}\bar{D}$ molecular state?
%A Chun-Yu Cui
%A Xin-Hua Liao
%A Yong-Lu Liu
%A Ming-Qiu Huang
%J Physics
%D 2013
%I arXiv
%R 10.1088/0954-3899/41/7/075003
%X We investigate the nature of the recently observed narrow resonance $Z_{c}(3900)$, which is assumed to be a $D^{*}\bar{D}$ molecular state with quantum numbers $I^{G}J^{P}=1^{+}1^{+}$. Using QCD sum rules, we consider contributions up to dimension eight in the operator product expansion and work at the leading order in $\alpha_{s}$. The mass we arrived at is $(3.88 \pm 0.17) \mbox{GeV}$, which coincides with the mass of $Z_{c}(3900)$.
%U http://arxiv.org/abs/1304.1850v3