2023   01   az   p.34-38 Nazim A. Huseynov,
Estimation of misidentified of light leptons using one lepton efficiency map for Matrix Method		  pdf 

ABSTRACT

This paper describes the basic idea behind the Matrix Method (MM), the data-driven approach used to the estimate the fake lepton background in the tHq(bb) channel. Novelty of research consists the use of new efficiency maps calculated for one lepton in the final state in semileptonic decay mode of top quark. The method relies on a different response of the prompt and fake electrons/muons to identification, isolation and impact parameter requirements. The method uses data events selected with the same criteria as in the pre-selection region, but with looser light-lepton selections. The leptons passing the nominal selection cuts are referred to as tight leptons in the following, while leptons passing the looser criteria are denoted as loose leptons. The fake and prompt efficiencies for electrons and muons are defined as the probabilities of a fake or real electron or muon to pass the nominal electron/muon requirements and are measured in dedicated control regions enriched in real and fake leptons. Both fake and real efficiencies are parametrised in pT and |η| of the respective electron or muon.

Keywords: Creation of Higgs boson, estimation of non-real lepton, Matrix method, effective maps of a lepton
PACS: 12.40.Yx

DOI:-

Received: 31.01.2023

AUTHORS & AFFILIATIONS

Institute of Physics Ministry of Science and Education Republic of Azerbaijan, 131 H.Javid ave, Baku, AZ-1143, Azerbaijan
E-mail: nguseynov@jinr.ru

Graphics and Images

       

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