Search for tt¯Htt¯H Production in the All-jet Final State in Proton-proton Collisions at s?=13s=13 TeV

dc.authorid249433en_US
dc.contributor.authorBilki, Burak
dc.contributor.author., ve diger
dc.date.accessioned2019-03-28T13:22:06Z
dc.date.available2019-03-28T13:22:06Z
dc.date.issued2018
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractA search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet final state. Events containing seven or more jets are selected from a sample of proton-proton collisions at s?=13s=13 TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb?1. To separate the tt¯Htt¯H signal from the irreducible tt¯+bb¯¯¯tt¯+bb¯ background, the analysis assigns leading order matrix element signal and background probability densities to each event. A likelihood-ratio statistic based on these probability densities is used to extract the signal. The results are provided in terms of an observed ttH signal strength relative to the standard model production cross section ? = ?/?SM, assuming a Higgs boson mass of 125 GeV. The best fit value is ?ˆ=0.9±0.7(stat)±1.3(syst)=0.9±1.5(tot)?^=0.9±0.7(stat)±1.3(syst)=0.9±1.5(tot), and the observed and expected upper limits are, respectively, ? < 3.8 and < 3.1 at 95% confidence levels.en_US
dc.identifier.doi10.1007/JHEP06(2018)101
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85049914149en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1007/JHEP06(2018)101
dc.identifier.wosWOS:000436004000010en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Linktr_TR
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.subjectHadron-Hadron scatteringtr_TR
dc.subjectHiggs physicstr_TR
dc.subjectTop physicstr_TR
dc.titleSearch for tt¯Htt¯H Production in the All-jet Final State in Proton-proton Collisions at s?=13s=13 TeVen_US
dc.typeArticleen_US

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