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  4. Measurement of the top quark mass with lepton+jets final states using $\mathrm {p}$ $\mathrm {p}$ collisions at $\sqrt{s}=13\,\text {TeV} $
 
research article

Measurement of the top quark mass with lepton+jets final states using $\mathrm {p}$ $\mathrm {p}$ collisions at $\sqrt{s}=13,\text {TeV} $

Sirunyan, Albert M
•
Tumasyan, Armen
•
Adam, Wolfgang
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November 2, 2018
The European Physical Journal C

The mass of the top quark is measured using a sample of ${{\text {t}}\overline{{\text {t}}}}$ events collected by the CMS detector using proton-proton collisions at $\sqrt{s}=13$ $,\text {TeV}$ 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 $,\text {fb}^{-1}$ . For each event the mass is reconstructed from a kinematic fit of the decay products to a ${{\text {t}}\overline{{\text {t}}}}$ 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 ${\text {q}} \overline{{\text {q}}} ^\prime $ decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leading-order parton shower. The top quark mass is found to be $172.25 \pm 0.08,\text {(stat+JSF)} \pm 0.62,\text {(syst)} ,\text {GeV} $ . The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of ${{\text {t}}\overline{{\text {t}}}}$ production, and no indications of a bias in the measurements are observed.

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Type
research article
DOI
10.1140/epjc/s10052-018-6332-9
ArXiv ID

1805.01428

Author(s)
Sirunyan, Albert M
Tumasyan, Armen
Adam, Wolfgang
Ambrogi, Federico
Asilar, Ece
Bergauer, Thomas
Brandstetter, Johannes
Brondolin, Erica
Dragicevic, Marko
Erö, Janos
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Date Issued

2018-11-02

Published in
The European Physical Journal C
Volume

78

Issue

11

Start page

891

Subjects

p p: scattering

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p p: colliding beams

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top: mass: measured

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W: mass

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W: hadronic decay

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top: pair production

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top: semileptonic decay

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quantum chromodynamics: perturbation theory

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parton: showers

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perturbation theory: higher-order

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higher-order: 0

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higher-order: 1

•

kinematics

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CERN LHC Coll

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calibration

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CERN Lab

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final state: ((n)jet lepton)

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CMS

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experimental results

•

13000 GeV-cms

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LPHE  
Available on Infoscience
February 17, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/166207
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