论文标题
在e+ e碰撞中搜索多轻子量最终状态中的黑暗扇区
Searching for dark sectors in multi lepton final state in e+ e- collisions
论文作者
论文摘要
电子正电子碰撞是寻找新物理学的一个非常有前途的环境，尤其是与黑暗部门相关的可观察物。检测黑暗扇区候选者最具挑战性的实验问题是非常相关的标准模型背景。因此，重要的是要识别同时在黑暗扇区中最小化并在标准模型中高度抑制的可观察物。一个示例是$ e^+e^ - \至3（e^+e^ - ）$过程，可以通过黑暗higgs（$ h'$），$ e^+e^ - \ to a'h'\至6e $的生产和随后的衰减来介导，或者是由标准模型$ e^+e^+e^+e^ - \ f to a'h'\ to a'h'\ to a'h'\ to a'h'\ to a'h'\ to a'h'\ to a'h'\ to a'h'\ fo。在以下信中，我们研究了对观察到的$ e^+ e^ - \至3（e^+ e^ - ）$总横截面的相对贡献，来自$ h'$介导的以及固定目标和低能量碰撞物实验的标准模型过程，并特别注意Infn inazionali di frascati的PADME实验。
Electron positron collisions are a very promising environment to search for new physics, and in particular for dark sector related observables. The most challenging experimental problem in detecting dark sector candidates is the very high associated Standard Model background. For this reason it is important to identify observables that are, at the same time, minimally suppressed in the dark sector and highly suppressed in the Standard Model. One example is the $e^+ e^-\to 3(e^+e^-)$ process that can be mediated either by the production and subsequent decay of dark Higgs ($h'$), $e^+e^-\to A'h'\to 6e$ or produced by the Standards Model process $e^+ e^-\to 3(e^+e^-)$. In the following letter we study the relative contribution to observed $e^+ e^-\to 3(e^+e^-)$ total cross section, coming from the $h'$ mediated and from the Standard Model processes in the contest of fixed target and low energy collider experiments, with particular attention to the PADME experiment at the INFN Laboratori Nazionali di Frascati.
