Cross section measurements of the processes e+e−→ ωπ0 and ωη at center-of-mass energies between 3.773 and 4.701 GeV
Cross section measurements of the processes e+e−→ ωπ0 and ωη at center-of-mass energies between 3.773 and 4.701 GeV
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DOI：
10.1007/jhep07(2022)064
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发表时间：
2022-07
影响因子：
5.4
通讯作者：
M. Ablikim;M. Achasov;P. Adlarson;S. Ahmed;M. Albrecht;R. Aliberti;A. Amoroso;M. An;Q. An-Q
中科院分区：
文献类型：
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作者：
M. Ablikim;M. Achasov;P. Adlarson;S. Ahmed;M. Albrecht;R. Aliberti;A. Amoroso;M. An;Q. An-Q
过程e+ e−→ ωπ 0和e+ e−→ ωη的玻恩截面是在质心能量为3.773 - 4.701 GeV的条件下，使用BEPCII对撞机上运行的BESIII探测器收集的22.7 fb− 1的总积分光度测量的。一个简单的连续过程的s-n依赖关系可以描述测量的玻恩截面。没有发现来自γ（4160），Y（4230），Y（4360），γ（4415），Y（4660）共振的显著贡献，这表明这些共振到ωπ 0和ωη终态的分支分数相对较小。
The Born cross sections of the processes e+ e−→ ωπ 0 and e+ e−→ ωη are measured at center-of-mass energies between 3.773 and 4.701 GeV using a total integrated luminosity of 22.7 fb− 1 collected with the BESIII detector operating at the BEPCII collider. A simple s− n dependence for the continuum process can describe the measured Born cross sections. No significant contributions from the ψ (4160), Y (4230), Y (4360), ψ (4415), Y (4660) resonances are found, which indicates relative small branching fractions for these resonances into the ωπ 0 and ωη final states.