Study of $e^+e^- \rightarrow π^{0}X(3872)γ$ and search for $Z_c(4020)^{0}\rightarrow X(3872)γ$
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name: Achasov, M. N.
name: Adlarson, P.
name: Ahmed, S.
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name: Zhu, K. J.
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Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.178 to 4.600 GeV, we study the process $e^+e^-\rightarrowπ^{0}X(3872)γ$ and search for $Z_c(4020)^{0}\rightarrow X(3872)γ$. We find no significant signal and set upper limits on $σ(e^+e^-\rightarrowπ^{0}X(3872)γ)\cdot\mathcal{B}(X(3872)\rightarrowπ^{+}π^{-}J/ψ)$ and $σ(e^+e^-\rightarrowπ^{0}Z_c(4020)^{0})\cdot\mathcal{B}(Z_c(4020)^{0}\rightarrow X(3872)γ)\cdot\mathcal{B}(X(3872)\rightarrowπ^{+}π^{-}J/ψ)$ for each energy point at $90\%$ confidence level, which is of the order of several tenths pb.
description: 11 pages, 4 figures