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arXiv · 1308.6345

Charged charmoniumlike state $Z_c(3900)^\pm$ via meson photoproduction

Qing-Yong Lin·Xiang Liu·Hu-Shan Xu
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Abstract

In this work, we explore the production of the newly observed charged charmoniumlike state $Z_c(3900)^\pm$ by the photoproduction process $\gamma p\to Z_c(3900)^+n$. Our numerical result indicates that the maximum of the calculated total cross section of $\gamma p\to Z_c(3900)^+n$ can reach up to the order of $0.1 \mu b$. Furthermore, the Dalitz plot analysis is performed by considering the Pomeron exchange as the background contribution. This analysis shows that the $Z_c(3900)^+$ signal can be distinguished from the background easily and the best energy window of searching for $Z_c(3900)^+$ is $\sqrt{s}\simeq7$ GeV, which is important information for further experimental study of $Z_c(3900)^+$ by meson photoproduction.

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Qing-Yong Lin, Xiang Liu, Hu-Shan Xu. 2013-08-29. Charged charmoniumlike state $Z_c(3900)^\pm$ via meson photoproduction. https://doi.org/10.1103/physrevd.88.114009

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