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
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
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
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
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
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10300 - Physical sciences
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2023040" target="_blank" >LM2023040: Výzkumná infrastruktura pro experimenty v CERN</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Svazek periodika
2025
Číslo periodika v rámci svazku
02
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
75
Strana od-do
097
Kód UT WoS článku
001509789000001
EID výsledku v databázi Scopus
2-s2.0-105011684385