| Exploring the nearly degenerate stop region with sbottom decays | |
| An, Haipeng1; Gu, Jiayin2,3; Wang, Lian-Tao4,5 | |
| 刊名 | Journal of high energy physics
 |
| 2017-04-13 | |
| 期号 | 4页码:20 |
| 关键词 | Supersymmetry phenomenology |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep04(2017)084 |
| 通讯作者 | An, haipeng(anhp@caltech.edu) |
| 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 |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000402858300001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177401 |
| 专题 | 高能物理研究所 |
| 通讯作者 | An, Haipeng |
| 作者单位 | 1.CALTECH, Walter Burke Inst Theoret Phys, 1200 E Calif Blvd, Pasadena, CA 91125 USA 2.Chinese Acad Sci, Ctr Future High Energy Phys, Inst High Energy Phys, 19B YuquanLu, Beijing 100049, Peoples R China 3.DESY, Notkestr 85, D-22607 Hamburg, Germany 4.Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA 5.Univ Chicago, Kavli Inst Cosmol Phys, 5640 S Ellis Ave, Chicago, IL 60637 USA |
| 推荐引用方式 GB/T 7714 | An, Haipeng,Gu, Jiayin,Wang, Lian-Tao. Exploring the nearly degenerate stop region with sbottom decays[J]. Journal of high energy physics,2017(4):20. |
| APA | An, Haipeng,Gu, Jiayin,&Wang, Lian-Tao.(2017).Exploring the nearly degenerate stop region with sbottom decays.Journal of high energy physics(4),20. |
| MLA | An, Haipeng,et al."Exploring the nearly degenerate stop region with sbottom decays".Journal of high energy physics .4(2017):20. |
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