arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1202.2894hep-ph
收藏

对撞机上的轻暗物质和$Z'$暗力

Light dark matter and $Z'$ dark force at colliders

Haipeng An, Xiangdong Ji, Lian-Tao Wang

摘要:

光暗物质,$<10$ GeV,具有相当大的直接探测率是一个有趣的和较少探索的场景。对撞机的搜索可以非常强大,例如通过一个通道,其中一对暗物质粒子与喷流相关联。这是一个通用的可能性,介质之间的相互作用DM和核也将访问在Tevatron和LHC。因此,对介质的对撞机搜索可以为暗物质及其相互作用提供更全面的探测。在这篇文章中,为了证明这两种方法的互补性,我们专注于调解人是一个新的$U(1)'$规范玻色子,这可能是最简单的模型,允许一个大的直接检测横截面的光暗物质候选人的可能性。我们结合搜索单射流+MET通道和双射流共振搜索介质。我们发现,对于250 GeV和4 TeV之间的$Z'$的质量,在对撞机的共振搜索提供了更强的约束,这个模型比单喷+MET搜索。

英文摘要:

Light Dark Matter, $<10$ GeV, with sizable direct detection rate is an interesting and less explored scenario. Collider searches can be very powerful, such as through the channel in which a pair of dark matter particle are produced in association with a jet. It is a generic possibility that the mediator of the interaction between DM and the nucleus will also be accessible at the Tevatron and the LHC. Therefore, collider search of the mediator can provide a more comprehensive probe of the dark matter and its interactions. In this article, to demonstrate the complementarity of these two approaches, we focus on the possibility of the mediator being a new $U(1)'$ gauge boson, which is probably the simplest model which allows a large direct detection cross section for a light dark matter candidate. We combine searches in the monojet+MET channel and dijet resonance search for the mediator. We find that for the mass of $Z'$ between 250 GeV and 4 TeV, resonance searches at the colliders provide stronger constraints on this model than the monojet+MET searches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑