Exploring the nearly degenerate stop region with sbottom decays
文献类型：期刊论文
| 作者 | Gu, JY; Gu JY(顾嘉荫); An, HP; Wang, LT |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2017 |
| 期号 | 4页码:84 |
| 关键词 | Supersymmetry Phenomenology |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP04(2017)084 |
| 文献子类 | Article |
| 英文摘要 | A light stop with mass almost degenerate with the lightest neutralino has important connections with both naturalness and dark matter relic abundance. This region is also very hard to probe at colliders. In this paper, we demonstrate the potential of searching for such stop particles at the LHC from sbottom decays, focusing on two channels with final states 2l + E-T(miss) and 1b1l + E-T(miss). We found that, if the lightest sbottom has mass around or below 1TeV and has a significant branching ratio to decay to stop and W ((b) over tilde -> (t) over tildeW), a stop almost degenerate with neutralino can be excluded up to about 500-600 GeV at the 13TeV LHC with 300 fb(-1) data. The searches we propose are complementary to other SUSY searches at the LHC and could have the best sensitivity to the stop-bino coannihilation region. Since they involve final states which have already been used in LHC searches, a reinterpretation of the search results already has sensitivity. Further optimization could deliver the full potential of these channels. |
| WOS关键词 | HADRON COLLIDERS ; MEASURING MASSES ; CROSS-SECTIONS ; WINDOW ; STATES ; SQUARK ; LHC |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000402858300001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284399]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Gu, JY,Gu JY,An, HP,et al. Exploring the nearly degenerate stop region with sbottom decays[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(4):84. |
| APA | Gu, JY,顾嘉荫,An, HP,&Wang, LT.(2017).Exploring the nearly degenerate stop region with sbottom decays.JOURNAL OF HIGH ENERGY PHYSICS(4),84. |
| MLA | Gu, JY,et al."Exploring the nearly degenerate stop region with sbottom decays".JOURNAL OF HIGH ENERGY PHYSICS .4(2017):84. |
入库方式： OAI收割
来源：高能物理研究所
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