IHEP OpenIR  > 粒子天体物理中心
Search for new long-lived particles at root s=13 TeV
CMS Collaboration
2018
Source PublicationPHYSICS LETTERS B
ISSN0370-2693
EISSN1873-2445
Volume780Pages:432-454
SubtypeArticle
AbstractA 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.
KeywordCMS Physics Long-lived particles
DOI10.1016/j.physletb.2018.03.019
WOS KeywordGLUINO PRODUCTION ; SQUARK
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000432187800065
ADS Bibcode2018PhLB..780..432S
AXRIV CODE1711
inspireid1638988
Citation statistics
Cited Times:49 [INSPIRE]
Cited Times:14 [ADS]
Document Type期刊论文
Identifierhttp://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 AffilicationInstitute 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.
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