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arXiv · 1508.00339

Photoproduction of hidden charm pentaquark states $P_c^+(4380)$ and $P_c^+(4450)$

Qian Wang·Xiao-Hai Liu·Qiang Zhao
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Abstract

We propose to study the pentaquark candidates of $P_c^+(4380)$ and $P_c^+(4450)$ in $J/\psi$ photoproduction and look for further experimental evidence for their nature. Since the photoproduction process does not satisfy the so-called "anomalous triangle singularity" condition their presence in $J/\psi$ photoproduction would conclude that they should be genuine states and provide further evidence for their existence.

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Qian Wang, Xiao-Hai Liu, Qiang Zhao. 2015-08-03. Photoproduction of hidden charm pentaquark states $P_c^+(4380)$ and $P_c^+(4450)$. https://doi.org/10.1103/physrevd.92.034022

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