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Measurement of the top quark mass with lepton plus jets final states using pp collisions at root s=13 TeV

Sirunyan, AM and Tumasyan, A and Adam, W and Ambrogi, F and Asilar, E (2018) Measurement of the top quark mass with lepton plus jets final states using pp collisions at root s=13 TeV. In: EUROPEAN PHYSICAL JOURNAL C, 78 (11).

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Official URL: https://doi.org/10.1140/epjc/s10052-018-6332-9

Abstract

The mass of the top quark is measured using a sample of t (t) over bar events collected by the CMS detector using proton-proton collisions at root s = 13 TeV at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9 fb(-1). For each event the mass is reconstructed from a kinematic fit of the decay products to a t (t) over bar hypothesis. Using the ideogram method, the top quark mass is determined simultaneously with an overall jet energy scale factor (JSF), constrained by the mass of the W boson in q (q) over bar' decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leadingorder parton shower. The top quark mass is found to be 172.25 +/- 0.08 (stat+JSF)+/- 0.62 (syst) GeV. The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of t (t) over bar production, and no indications of a bias in the measurements are observed.

Item Type: Journal Article
Additional Information: Copyright of this article belong to SPRINGER
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Depositing User: Id for Latest eprints
Date Deposited: 26 Mar 2019 07:54
Last Modified: 26 Mar 2019 07:54
URI: http://eprints.iisc.ac.in/id/eprint/62131

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