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arXiv · 1904.10711

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

Jian-Rong Zhang
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Abstract

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.

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Jian-Rong Zhang. 2019-04-24. Exploring a $\Sigma_{c}\bar{D}$ state: with focus on $P_{c}(4312)^{+}$. https://doi.org/10.1140/epjc%2Fs10052-019-7529-2

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