Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at s√=13s=13 TeV

Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at s√=13s=13 TeV

Bibliographic Details
Parent link:	Journal of High Energy Physics Vol. 2018, iss. 6.— 2018.— [102, 36 p.]
Corporate Author:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors:	Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Babaev A. A. Anton Anatoljevich
Summary:	Title screen A search for flavor-changing neutral currents (FCNC) in events with the top quark and the Higgs boson is presented. The Higgs boson decay to a pair of b quarks is considered. The data sample corresponds to an integrated luminosity of 35.9 fb−1 recorded by the CMS experiment at the LHC in proton-proton collisions at s√=13s=13 TeV. Two channels are considered: single top quark FCNC production in association with the Higgs boson (pp → tH), and top quark pair production with FCNC decay of the top quark (t → qH). Final states with one isolated lepton and at least three reconstructed jets, among which at least two are associated with b quarks, are studied. No significant deviation is observed from the predicted background. Observed (expected) upper limits at 95% confidence level are set on the branching fractions of top quark decays, ℬ(t → uH) < 0.47% (0.34%) and ℬ(t → cH) < 0.47% (0.44%), assuming a single nonzero FCNC coupling. Режим доступа: по договору с организацией-держателем ресурса
Language:	English
Published:	2018
Subjects:	электронный ресурс труды учёных ТПУ FCNC Interaction hadron-hadron scattering (experiments) higgs physics top physics взаимодействие адрон-адронное рассеяние лучшие люди физики
Online Access:	https://doi.org/10.1007/JHEP06(2018)102
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659039

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