Evidence for Higgs Boson decay to a pair of muons at CMS

Dutta, I. (2021) Evidence for Higgs Boson decay to a pair of muons at CMS. Il nuovo cimento C, 44 (6). pp. 1-5. ISSN 1826-9885

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Abstract

The CMS collaboration recently presented their results on the firstever evidence of Higgs decay to a pair of muons with 137 fb−1 of data at √s = 13 TeV (The CMS Collaboration, JHEP, 01 (2021) 148). The analysis targeted four different production modes, the gluon fusion (ggH) , the vector boson fusion (VBF), the Higgs-strahlung process (VH) and the production in association with a pair of top quarks (ttH). Each of these categories had developed it’s own dedicated boosted decision tree (BDT) or a deep neural-network (DNN) to efficiently separate the signal from the major background processes. The VBF category used a templatebased fit to the DNN score whereas the remaining categories performed data-driven fits to the dimuon mass spectrum. A combined fit from all these categories sees a slight excess in the data corresponding to 3.0 standard deviations at MH = 125.38 GeV (the most precise measurement of the Higgs boson mass to date (The CMS Collaboration, Phys. Lett. B, 805 (2020) 135425)).

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	10 Dec 2021 10:13
Last Modified:	10 Dec 2021 10:13
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21500

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