Search for pair-produced vector-like leptons in final states with third-generation leptons and at least three b quark jets in proton-proton collisions at √s=13 TeV
The first search is presented for vector-like leptons (VLLs) in the context of the "4321 model", an ultraviolet-complete model with the potential to explain existing B physics measurements that are in tension with standard model predictions. The analyzed data, corresponding to an integrated luminosity of 96.5 fb-1, were recorded in 2017 and 2018 with the CMS detector at the LHC in proton-proton collisions at √s = 13 TeV. Final states with ≥ 3 b-tagged jets and two third-generation leptons (ττ,τν(τ), or ν(τ)ν(τ)) are considered. Upper limits are derived on the VLL production cross section in the VLL mass range 500-1050 GeV. The maximum likelihood fit prefers the presence of signal at the level of 2.8 standard deviations, for a representative VLL mass point of 600 GeV. As a consequence, the observed upper limits are approximately double the expected limits.
WOS:001125403900001
2023-09-26
846
137713
REVIEWED
Funder | Grant Number |
TUBITAK | |
NASU (Ukraine) | |
DOE | |
NSF (USA) | |
European Research Council | |
Horizon 2020 Grant | 675440 |
COST Action | CA16108 |
Leventis Foundation | |
Alfred P. Sloan Foundation | |
Alexander von Humboldt Foundation | |
Fonds pour la Formation la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium) | |
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) | |
FWO (Belgium) | 30820817 |
Beijing Municipal Science AMP; Technol-ogy Commission | Z191100007219010 |
Ministry of Educa-tion, Youth and Sports (MEYS) of the Czech Republic | |
Hellenic Foundation for Research and Innovation (HFRI) | 2288 |
Deutsche Forschungsgemeinschaft (DFG) | EXC 2121 |
Hungarian Academy of Sciences | K 124845 |
Council of Science and Indus-trial Research, India | |
Latvian Council of Science | |
Ministry of Education and Science | 2022/WK/14 |
National Science Center | Opus 2021/41/B/ST2/01369 |
National Priorities Research Program by Qatar National Research Fund | |
ERDF "a way of making Eu-rope | MDM-2017-0765 |
Programa Severo Ochoa del Principado de As-turias (Spain) | |
National Science, Research and Innovation Fund via the Program Management Unit for Human Resources AMP; Institutional Development, Research and Innovation | B05F650021 |
Kavli Foundation | |
Nvidia Corporation | |
SuperMicro Corporation | |
Welch Foundation | C-1845 |
Weston Havens Foundation (USA) | |