Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2018-09-14T02:29:24Z | pt_BR |
dc.date.issued | 2018 | pt_BR |
dc.identifier.issn | 1029-8479 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/181951 | pt_BR |
dc.description.abstract | A search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet nal state. Events containing seven or more jets are selected from a sample of proton-proton collisions at ps = 13TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb1. To separate the t tH signal from the irreducible t t + b b background, the analysis assigns leading order matrix element signal and background probability densities to each event. A likelihoodratio statistic based on these probability densities is used to extract the signal. The results are provided in terms of an observed t tH signal strength relative to the standard model production cross section = = SM, assuming a Higgs boson mass of 125 GeV. The best t value is ^ = 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% con dence levels. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The journal of high energy physics. Trieste. No. 6 (June 2018), 101, 45 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Hadron-Hadron scattering (experiments) | en |
dc.subject | Bosons de higgs | pt_BR |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Higgs physics | en |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Top physics | en |
dc.title | Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001072354 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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