Observation of t t H Production

The CMS collaboration

Результат исследования: Научные публикации в периодических изданияхстатья

120 Цитирования (Scopus)

Аннотация

The observation of Higgs boson production in association with a top quark-antiquark pair is reported, based on a combined analysis of proton-proton collision data at center-of-mass energies of s=7, 8, and 13 TeV, corresponding to integrated luminosities of up to 5.1, 19.7, and 35.9 fb-1, respectively. The data were collected with the CMS detector at the CERN LHC. The results of statistically independent searches for Higgs bosons produced in conjunction with a top quark-antiquark pair and decaying to pairs of W bosons, Z bosons, photons, τ leptons, or bottom quark jets are combined to maximize sensitivity. An excess of events is observed, with a significance of 5.2 standard deviations, over the expectation from the background-only hypothesis. The corresponding expected significance from the standard model for a Higgs boson mass of 125.09 GeV is 4.2 standard deviations. The combined best fit signal strength normalized to the standard model prediction is 1.26-0.26+0.31.

Язык оригиналаанглийский
Номер статьи231801
Число страниц17
ЖурналPhysical Review Letters
Том120
Номер выпуска23
DOI
СостояниеОпубликовано - 4 июн 2018

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