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Report number arXiv:2302.12802 ; CMS-B2G-21-007 ; CERN-EP-2022-253 ; CMS-B2G-21-007-003
Title Search for a vector-like quark T' tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at s=s= 13 TeV
Related titleSearch for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at ss = 13 TeV
Author(s) CMS Collaboration  Pokaż wszystkich 2359 autorów
Corporate Author(s) CMS Collaboration
Publication 2023-09-11
Imprint 24 Feb 2023
Number of pages 17
Note Replaced with the published version. Added the journal reference and DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/B2G-21-007 (CMS Public Pages)
In: JHEP 2309 (2023) 057
DOI 10.1007/JHEP09(2023)057
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; CMS
Free keywords exotics ; experimental results
Abstract A search for the electroweak production of a vector-like quark T', decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at s=s= 13 TeV, corresponding to an integrated luminosity of 138 fb11. This is the first T' search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T' states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1-2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T' quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κT=κT= 0.25 and a relative decay width Γ/MT< 5%.
Related document supersedes: CMS-PAS-B2G-21-007
Copyright/License Publication: © 2023-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³
Preprint: © 2022-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: cms-publication-committee-chair@cern.ch


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