4.4 Article

Collider signatures of coannihilating dark matter in light of the B-physics anomalies

期刊

JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 11, 页码 -

出版社

SPRINGER
DOI: 10.1007/JHEP11(2021)084

关键词

Beyond Standard Model; Cosmology of Theories beyond the SM

资金

  1. Australian Research Council
  2. Swiss National Science Foundation (SNF) [200021-175940, 200021-159720]
  3. MIUR [PRIN 2017L5W2PT]
  4. European Research Council (ERC) under the European Union [833280]

向作者/读者索取更多资源

Studied a dark sector with Majorana dark matter and coloured coannihilation partner connected to the Standard Model via a U-1 vector leptoquark; TeV scale U-1 leptoquark is the only successful single-mediator description of B-physics anomalies, showing resonant signatures and excluded by searches at LHC.
Motivated by UV explanations of the B-physics anomalies, we study a dark sector containing a Majorana dark matter candidate and a coloured coannihilation partner, connected to the Standard Model predominantly via a U-1 vector leptoquark. A TeV scale U-1 leptoquark, which couples mostly to third generation fermions, is the only successful single-mediator description of the B-physics anomalies. After calculating the dark matter relic surface, we focus on the most promising experimental avenue: LHC searches for the coloured coannihilation partner. We find that the coloured partner hadronizes and forms meson-like bound states leading to resonant signatures at colliders reminiscent of the quarkonia decay modes in the Standard Model. By recasting existing dilepton and monojet searches we exclude coannihilation partner masses less than 280 GeV and 400 GeV, respectively. Since other existing collider searches do not significantly probe the parameter space, we propose a new dedicated search strategy for pair production of the coloured partner decaying into bb tau tau final states and dark matter particles. This search is expected to probe the model up to dark matter masses around 600 GeV with current luminosity.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.4
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据