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arXiv · 1904.06015

Confronting pentaquark photoproduction with new LHCb observations

Xu Cao·Jian-ping Dai
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Abstract

The newly measurement of production fractions of $P_c$ states by LHCb collaboration have put restriction on their branching ratios of $J/ψp$ decay, thus constraining their photoproduction in $γp\to J/ψp$ reaction. We show the tension between LHCb results and the current experiments in search of $P_c$ photoproduction. We also find that the present information of branching ratios of $P_c\to J/ψp$ has already confronted sharply with the models which study the nature of $P_c$.

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Xu Cao, Jian-ping Dai. 2019-09-13. Confronting pentaquark photoproduction with new LHCb observations. https://doi.org/10.1103/physrevd.100.054033

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