Search for narrow resonances in the b-tagged dijet mass spectrum in proton-proton collisions at √s=13 TeV
A search is performed for narrow resonances decaying to final states of two jets, with at least one jet ffiffioriginating from a b quark, in proton-proton collisions at p s = 13 TeV. The data set corresponds to an integrated luminosity of 138 fb-1 collected with the CMS detector at the LHC. Jets originating from energetic b hadrons are identified through a b-tagging algorithm that utilizes a deep neural network or the presence of a muon inside a jet. The invariant mass spectrum of jet pairs is well described by a smooth parametrization and no evidence for the production of new particles is observed. Upper limits on the production cross section are set for excited b quarks and other resonances decaying to dijet final states containing b quarks. These limits exclude at 95% confidence level models of Z' bosons with masses from 1.8 TeV to 2.4 TeV and of excited b quarks with masses from 1.8 TeV to 4.0 TeV. This is the most stringent exclusion of excited b quarks to date.
WOS:001062044600001
2023-07-13
108
1
012009
REVIEWED
Funder | Grant Number |
Science and Industrial Research, India | |
Latvian Council of Science | |
Ministry of Education and Science | 2021/41/B/ST2/01369 |
National Science Center | 2021/43/B/ST2/01552 |
National Priorities Research Program by Qatar National Research Fund | MDM-2017-0765 |
ERDF "a way of making Europe" | B05F650021 |
Programa Severo Ochoa del Principado de Asturias (Spain) | |
National Science, Research and Innovation Fund via the Program Management Unit for Human Resources and Institutional Development, Research and Innovation | C-1845 |
Kavli Foundation | |
Nvidia Corporation | |
SuperMicro Corporation | |
Welch Foundation | |
Weston Havens Foundation (USA) | |
2022/WK/14 | |