在 1.5 至 3.4 GeV/$c^2$ 质量范围内的暗光子搜寻
高能物理 - 实验
2017-11-22 v2
摘要
利用在 BEPCII 对撞机上的 BESIII 探测器于质心能量 = 3.773 GeV 获取的 2.93 fb 数据样本，我们搜寻一种额外的 U(1) 规范玻色子，也称为暗光子。我们检验初态辐射反应 和 以进行该搜寻，其中暗光子将表现为轻子对不变质量分布中的增强。在 1.5 至 3.4 GeV/ 质量范围内未观测到明显增强，并对暗光子与标准模型光子的混合强度设定了 90% 置信水平上限。我们在所测试质量范围内获得了具有竞争力的限制。
引用
@article{arxiv.1705.04265,
title = {Dark Photon Search in the Mass Range Between 1.5 and 3.4 GeV/$c^2$},
author = {M. Ablikim and M. N. Achasov and X. C. Ai and O. Albayrak and M. Albrecht and D. J. Ambrose and A. Amoroso and F. F. An and Q. An and J. Z. Bai and R. Baldini Ferroli and Y. Ban and D. W. Bennett and J. V. Bennett and M. Bertani and D. Bettoni and J. M. Bian and F. Bianchi and E. Boger and I. Boyko and R. A. Briere and H. Cai and X. Cai and O. Cakir and A. Calcaterra and G. F. Cao and S. A. Cetin and J. F. Chang and G. Chelkov and G. Chen and H. S. Chen and H. Y. Chen and J. C. Chen and M. L. Chen and S. J. Chen and X. Chen and X. R. Chen and Y. B. Chen and H. P. Cheng and X. K. Chu and G. Cibinetto and H. L. Dai and J. P. Dai and A. Dbeyssi and D. Dedovich and Z. Y. Deng and A. Denig and I. Denysenko and M. Destefanis and F. De Mori and Y. Ding and C. Dong and J. Dong and L. Y. Dong and M. Y. Dong and S. X. Du and P. F. Duan and E. E. Eren and J. Z. Fan and J. Fang and S. S. Fang and X. Fang and Y. Fang and L. Fava and F. Feldbauer and G. Felici and C. Q. Feng and E. 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journal= {arXiv preprint arXiv:1705.04265},
year = {2017}
}