KLOE 实验对 $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}\gamma$, $\mathrm{U} \to \mathrm{e}^{+}\mathrm{e}^{-}$ 中低质量矢量玻色子产生的限制
高能物理 - 实验
2015-10-20 v2
摘要
标准模型之外新力的存在是引人关注的，因为它可以解释几个无法用标准解释说明的显著天体物理观测结果。我们利用 DANE 对撞机上的 KLOE 探测器寻找了这种暗力的轻矢量媒介子，即 玻色子。利用 1.54 fb 的积分亮度，我们利用辐射回返过程研究了 （其中 ）过程，以在双电子不变质量分布中寻找共振峰。我们未发现信号的证据，并在 5--520 MeV/c 质量范围内，将标准模型光子与暗光子之间的混合强度 的 90% 置信水平上限设定为 --。
引用
@article{arxiv.1509.00740,
title = {Limit on the production of a low-mass vector boson in $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}\gamma$, $\mathrm{U} \to \mathrm{e}^{+}\mathrm{e}^{-}$ with the KLOE experiment},
author = {A. Anastasi and D. Babusci and G. Bencivenni and M. Berlowski and C. Bloise and F. Bossi and P. Branchini and A. Budano and L. Caldeira Balkeståhl and B. Cao and F. Ceradini and P. Ciambrone and F. Curciarello and E. Czerwiński and G. D'Agostini and E. Danè and V. De Leo and E. De Lucia and A. De Santis and P. De Simone and A. Di Cicco and A. Di Domenico and R. Di Salvo and D. Domenici and A. D'Uffizi and A. Fantini and G. Felici and S. Fiore and A. Gajos and P. Gauzzi and G. Giardina and S. Giovannella and E. Graziani and F. Happacher and L. Heijkenskjöld and W. Ikegami Andersson and T. Johansson and D. Kamińska and W. Krzemien and A. Kupsc and S. Loffredo and G. Mandaglio and M. Martini and M. Mascolo and R. Messi and S. Miscetti and G. Morello and D. Moricciani and P. Moskal and A. Palladino and M. Papenbrock and A. Passeri and V. Patera and E. Perez del Rio and A. Ranieri and P. Santangelo and I. Sarra and M. Schioppa and M. Silarski and F. Sirghi and L. Tortora and G. Venanzoni and W. Wiślicki and M. Wolke},
journal= {arXiv preprint arXiv:1509.00740},
year = {2015}
}