Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying τ leptons at s√=13s=13 TeV; Journal of High Energy Physics; Vol. 2018, iss. 8

Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying τ leptons at s√=13s=13 TeV; Journal of High Energy Physics; Vol. 2018, iss. 8

Detalles Bibliográficos
Parent link:Journal of High Energy Physics
Vol. 2018, iss. 8.— 2018.— [66, 55 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Otros Autores: Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Asilar E. Ece, Bergauer T. Thomas, Babaev A. A. Anton Anatoljevich
Sumario:Title screen
Results of a search for the standard model Higgs boson produced in association with a top quark pair (tt¯Htt¯H) in final states with electrons, muons, and hadronically decaying τ leptons are presented. The analyzed data set corresponds to an integrated luminosity of 35.9 fb−1 recorded in proton-proton collisions at s√=13s=13 TeV by the CMS experiment in 2016. The sensitivity of the search is improved by using matrix element and machine learning methods to separate the signal from backgrounds. The measured signal rate amounts to 1.23 − 0.43 + 0.45 times the production rate expected in the standard model, with an observed (expected) significance of 3.2σ (2.8σ), which represents evidence for tt¯Htt¯H production in those final states. An upper limit on the signal rate of 2.1 times the standard model production rate is set at 95% confidence level.
Режим доступа: по договору с организацией-держателем ресурса
Lenguaje:inglés
Publicado: 2018
Materias:
электронный ресурс
труды учёных ТПУ
hadron-hadron scattering (experiments)
Higgs physics
адрон-адронные столкновения
top physics
Acceso en línea:https://doi.org/10.1007/JHEP08(2018)066
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661247

Ejemplares similares

Ejemplares similares