Study of e+e- -> pi0 X(3872) gamma and search for Zc(4020)0 -> X(3872) gamma

Study of e+e- -> pi0 X(3872) gamma and search for Zc(4020)0 -> X(3872) gamma
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研究 e e- -> pi0 X(3872) gamma 并搜索 Zc(4020)0 -> X(3872) gamma

DOI:
10.1103/physrevd.104.012001
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发表时间:
2021
期刊:
影响因子:
5
通讯作者:
BESIII Collaboration
BESIII Collaboration
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
BESIII Collaboration

文献摘要

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利用运行在BEPCII储存环上的BESIII探测器在质心能量从4.178到4.600 GeV范围内收集的数据样本,我们研究了这一过程,并寻找。我们未发现显著信号,并在90%置信水平下为每个能量点设定了σ(e+e-→π 0 X(3872)γ)·B(X(3872)→π+π-J/π)和σ(e+e-→π 0 Zc(4020)0)·B(Zc(4020)0→X(3872)γ)·B(X(3872)→π+π-J/π)的上限,其数量级为十分之几pB。
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 processand search for. We find no significant signal and set upper limits on σ(e+e-→π0X(3872)γ)·B(X(3872)→π+π-J/ψ) and σ(e+e-→π0Zc(4020)0)·B(Zc(4020)0→X(3872)γ)·B(X(3872)→π+π-J/ψ) for each energy point at 90% confidence level, which is of the order of several tenths pb.