| Search for new long-lived particles at root s=13 TeV | |
| CMS Collaboration | |
| 2018 | |
| Source Publication | PHYSICS LETTERS B
 |
| ISSN | 0370-2693 |
| EISSN | 1873-2445 |
| Volume | 780Pages:432-454 |
| Subtype | Article |
| Abstract | 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. |
| Keyword | CMS Physics Long-lived particles |
| DOI | 10.1016/j.physletb.2018.03.019 |
| WOS Keyword | GLUINO PRODUCTION ; SQUARK |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| WOS ID | WOS:000432187800065 |
| ADS Bibcode | 2018PhLB..780..432S |
| AXRIV CODE | 1711 |
| inspireid | 1638988 |
| Citation statistics |
Cited Times:49 [INSPIRE]
Cited Times:15 [ADS]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/286012 |
| Collection | 粒子天体物理中心 |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment