Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV; Journal of High Energy Physics; Vol. 2020, iss. 3

Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV; Journal of High Energy Physics; Vol. 2020, iss. 3

Bibliografske podrobnosti
Parent link:	Journal of High Energy Physics Vol. 2020, iss. 3.— 2020.— [65, 45 p.]
Korporativna značnica:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Drugi avtorji:	Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich
Izvleček:	Title screen A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125 GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at √s = 13 TeV is used, corresponding to an integrated luminosity of 35.9 fb−1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → ℓℓττ. The observed upper limit at 95% confidence level ranges from 27 to 5 fb for A boson masses from 220 to 400 GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.
Jezik:	angleščina
Izdano:	2020
Teme:	электронный ресурс труды учёных ТПУ Hadron-Hadron scattering (experiments) Higgs physics
Online dostop:	https://doi.org/10.1007/JHEP03(2020)065
Format:	MixedMaterials Elektronski Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666180

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