理论,现象学和暗阵雨的实验途径:Snowmass 2021报告
Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report
摘要:
在这项工作中,我们考虑的情况下,一个强耦合的暗/隐藏的部门,它扩展了标准模型(SM)通过添加一个额外的非阿贝尔规范群。这些扩展通常包含物质场,很像SM夸克,以及类似于SM胶子的规范场。我们专注于探索这样的部门,其中暗粒子通过入口在LHC产生,并在暗部门内进行快速强子化,然后衰变回,至少部分地并且可能具有相当长的寿命,SM粒子,给出一系列可能壮观的签名,如新兴或半可见的射流。其他的,非QCD类的情况下,导致软未聚集的能量模式或胶球也进行了讨论。在回顾了理论、现有基准和约束之后,这项工作讨论了如何从基本物理参数建立一致的基准,并为PYTHIA隐谷模块以及喷气子结构研究提出了新的发展。最后,提出了一系列改进的搜索策略,以便为更好地探索LHC暗簇射铺平道路。
英文摘要:
In this work, we consider the case of a strongly coupled dark/hidden sector, which extends the Standard Model (SM) by adding an additional non-Abelian gauge group. These extensions generally contain matter fields, much like the SM quarks, and gauge fields similar to the SM gluons. We focus on the exploration of such sectors where the dark particles are produced at the LHC through a portal and undergo rapid hadronization within the dark sector before decaying back, at least in part and potentially with sizeable lifetimes, to SM particles, giving a range of possibly spectacular signatures such as emerging or semi-visible jets. Other, non-QCD-like scenarios leading to soft unclustered energy patterns or glueballs are also discussed. After a review of the theory, existing benchmarks and constraints, this work addresses how to build consistent benchmarks from the underlying physical parameters and present new developments for the PYTHIA Hidden Valley module, along with jet substructure studies. Finally, a series of improved search strategies is presented in order to pave the way for a better exploration of the dark showers at the LHC.
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。