Measurement of the t(t)over-barH and tH production rates in the H RIGHTWARDS ARROW b(b)over-bar decay channel using proton-proton collision data at SQUARE ROOTs=13 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510779" target="_blank" >RIV/00216208:11320/25:10510779 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-wwYC.gczB" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-wwYC.gczB</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP02(2025)097" target="_blank" >10.1007/JHEP02(2025)097</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the t(t)over-barH and tH production rates in the H RIGHTWARDS ARROW b(b)over-bar decay channel using proton-proton collision data at SQUARE ROOTs=13 TeV
Original language description
An analysis of the production of a Higgs boson (H) in association with a top quark-antiquark pair (t (t) over barH) or a single top quark (tH) is presented. The Higgs boson decay into a bottom quark-antiquark pair (H -> b (b) over bar) is targeted, and three different final states of the top quark decays are considered, defined by the number of leptons (electrons or muons) in the event. The analysis utilises proton-proton collision data collected at the CERN LHC with the CMS experiment at root s = 13 TeV in 2016-2018, which correspond to an integrated luminosity of 138 fb(-1). The observed t (t) over barH production rate relative to the standard model expectation is 0.33 +/- 0.26 = 0.33 +/- 0.17(stat) +/- 0.21(syst). Additionally, the t (t) over barH production rate is determined in intervals of Higgs boson transverse momentum. An upper limit at 95% confidence level is set on the tH production rate of 14.6 times the standard model prediction, with an expectation of 19.3(-6.0)(+9.2). Finally, constraints are derived on the strength and structure of the coupling between the Higgs boson and the top quark from simultaneous extraction of the t (t) over barH and tH production rates, and the results are combined with those obtained in other Higgs boson decay channels.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/LM2023040" target="_blank" >LM2023040: Research infrastructure for experiments at CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2025
Issue of the periodical within the volume
02
Country of publishing house
DE - GERMANY
Number of pages
75
Pages from-to
097
UT code for WoS article
001509789000001
EID of the result in the Scopus database
2-s2.0-105011684385