Search for new long-lived particles at root s=13 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2018 |
| 卷号 | 780页码:432-454 |
| 关键词 | CMS Physics Long-lived particles |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.03.019 |
| 文献子类 | Article |
| 英文摘要 | A search for long-lived particles was performed with data corresponding to an integrated luminosity of 2.6 fb(-1) collected at a center-of-mass energy of 13 TeV by the CMS experiment in 2015. The analysis exploits two customized topological trigger algorithms, and uses the multiplicity of displaced jets to search for the presence of a signal decay occurring at distances between 1 and 1000 mm. The results can be interpreted in a variety of different models. For pair-produced long-lived particles decaying to two b quarks and two leptons with equal decay rates between lepton flavors, cross sections larger than 2.5 fb are excluded for proper decay lengths between 70-100 mm for a long-lived particle mass of 1130 GeV at 95% confidence. For a specific model of pair-produced, long-lived top squarks with R-parity violating decays to a b quark and a lepton, masses below 550-1130 GeV are excluded at 95% confidence for equal branching fractions between lepton flavors, depending on the squark decay length. This mass bound is the most stringent to date for top squark proper decay lengths greater than 3 mm. (C) 2018 The Author(s). Published by Elsevier B.V. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | GLUINO PRODUCTION ; SQUARK |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000432187800065 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286012]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 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 | CMS Collaboration. Search for new long-lived particles at root s=13 TeV[J]. PHYSICS LETTERS B,2018,780:432-454. |
| APA | CMS Collaboration.(2018).Search for new long-lived particles at root s=13 TeV.PHYSICS LETTERS B,780,432-454. |
| MLA | CMS Collaboration."Search for new long-lived particles at root s=13 TeV".PHYSICS LETTERS B 780(2018):432-454. |
入库方式： OAI收割
来源：高能物理研究所
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