Measurement of simplified template cross sections of the Higgs boson produced in association with W or Z bosons in the H -> bbbar decay channel in proton-proton collisions at √s=13 TeV

The CMS collaboration, A. Tumasyan, W. Adam, P. Eerola, Laurent Forthomme, H. Kirschenmann, K. Österberg, M. Voutilainen, Shudhashil Bharthuar, Erik Brücken, F. Garcia, J. Havukainen, Jaana Heikkilä, Minsuk Kim, R. Kinnunen, T. Lampén, K. Lassila-Perini, S. Laurila, S. Lehti, T. LindénMikko Lotti, P. Luukka, Laura Martikainen, Mikael Erkki Johannes Myllymäki, Juska Pekkanen, Milla-Maarit Rantanen, H. Siikonen, E. Tuominen, J. Tuominiemi, Jussi Viinikainen, H. Petrow, T. Tuuva

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Sammanfattning

Differential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (W, Z) and decaying to a pair of b quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of theW and Z bosons, resulting in final states with 0, 1, or 2 electrons or muons. The Higgs boson candidates are either reconstructed from pairs of resolved b-tagged jets, or from single large-radius jets containing the particles arising from two b quarks. Proton-proton collision data at root s = 13 TeV, collected by the CMS experiment in 2016-2018 and corresponding to a total integrated luminosity of 138 fb(-1), are analyzed. The inclusive signal strength, defined as the product of the observed production cross section and branching fraction relative to the standard model expectation, combining all analysis categories, is found to be mu = 1.15(-0.20)(+0.22). This corresponds to an observed (expected) significance of 6.3 (5.6) standard deviations.
Originalspråkengelska
Artikelnummer092011
TidskriftPhysical Review D
Volym109
Nummer9
Antal sidor35
ISSN2470-0010
DOI
StatusPublicerad - 29 maj 2024
MoE-publikationstypA1 Tidskriftsartikel-refererad

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