Exploring a ΣcDˉ\Sigma_{c}\bar{D} state: with focus on Pc(4312)+P_{c}(4312)^{+}

Stimulated by the new discovery of $P_{c}(4312)^{+}$ by LHCb Collaboration, we endeavor to perform the study of $P_{c}(4312)^{+}$ as a $\Sigma_{c}\bar{D}$ state in the framework of QCD sum rules. Taking into account the results from two sum rules, a conservative mass range 4.07\sim4.97~\mbox{GeV} is presented for the $\Sigma_{c}\bar{D}$ hadronic system, which agrees with the experimental data of $P_{c}(4312)^{+}$ and could support its interpretation as a $\Sigma_{c}\bar{D}$ state.Comment: 9 pages, 6 figures. arXiv admin note: text overlap with arXiv:1801.0872