Measurement of the top quark mass in the tt¯→ lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results

M. Aaboud; Paul Newman; ATLAS Collaboration; Miriam Watson

doi:10.1140/epjc/s10052-019-6757-9

Measurement of the top quark mass in the tt¯→ lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results

M. Aaboud, Paul Newman, ATLAS Collaboration, Miriam Watson

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

182 Downloads (Pure)

Abstract

The top quark mass is measured using a template method in the tt¯→ lepton+jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of 20.2 fb⁻¹. The tt¯→ lepton+jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be m_top=172.08±0.39(stat)±0.82(syst) GeV. A combination with previous ATLAS mtop measurements gives m_top=172.69±0.25(stat)±0.41(syst) GeV.

Original language	English
Article number	290
Number of pages	51
Journal	Journal of High Energy Physics
Volume	79
Issue number	4
Early online date	29 Mar 2019
DOIs	https://doi.org/10.1140/epjc/s10052-019-6757-9
Publication status	Published - 1 Apr 2019

Bibliographical note

75 pages in total, author list starting page 59, 14 figures, 12 tables, submitted to EPJC. All figures including auxiliary figures are available at this http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2017-03

Keywords

hep-ex

Access to Document

10.1140/epjc/s10052-019-6757-9Licence: Creative Commons: Attribution (CC BY)

ATLAS_collaboration_Measurement_of_the_top_quark_mass_Journal_of_High_Energy_physics_2019
Checked for eligibility: 29/07/2019
Final published version, 3.6 MBLicence: Creative Commons: Attribution (CC BY)

https://arxiv.org/abs/1810.01772Licence: Creative Commons: Attribution (CC BY)

Cite this

@article{1f9f19709899428cbe5195c6c7820757,

title = "Measurement of the top quark mass in the tt¯→ lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results",

abstract = "The top quark mass is measured using a template method in the tt¯→ lepton+jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of 20.2 fb−1. The tt¯→ lepton+jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be mtop=172.08±0.39(stat)±0.82(syst) GeV. A combination with previous ATLAS mtop measurements gives mtop=172.69±0.25(stat)±0.41(syst) GeV.",

keywords = "hep-ex",

author = "M. Aaboud and Paul Newman and {ATLAS Collaboration} and Miriam Watson",

note = "75 pages in total, author list starting page 59, 14 figures, 12 tables, submitted to EPJC. All figures including auxiliary figures are available at this http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2017-03",

year = "2019",

month = apr,

day = "1",

doi = "10.1140/epjc/s10052-019-6757-9",

language = "English",

volume = "79",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "4",

}

TY - JOUR

T1 - Measurement of the top quark mass in the tt¯→ lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results

AU - Aaboud, M.

AU - Newman, Paul

AU - ATLAS Collaboration

AU - Watson, Miriam

N1 - 75 pages in total, author list starting page 59, 14 figures, 12 tables, submitted to EPJC. All figures including auxiliary figures are available at this http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2017-03

PY - 2019/4/1

Y1 - 2019/4/1

N2 - The top quark mass is measured using a template method in the tt¯→ lepton+jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of 20.2 fb−1. The tt¯→ lepton+jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be mtop=172.08±0.39(stat)±0.82(syst) GeV. A combination with previous ATLAS mtop measurements gives mtop=172.69±0.25(stat)±0.41(syst) GeV.

AB - The top quark mass is measured using a template method in the tt¯→ lepton+jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of 20.2 fb−1. The tt¯→ lepton+jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be mtop=172.08±0.39(stat)±0.82(syst) GeV. A combination with previous ATLAS mtop measurements gives mtop=172.69±0.25(stat)±0.41(syst) GeV.

KW - hep-ex

U2 - 10.1140/epjc/s10052-019-6757-9

DO - 10.1140/epjc/s10052-019-6757-9

M3 - Article

SN - 1126-6708

VL - 79

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 290

ER -

Measurement of the top quark mass in the tt¯→ lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results

Abstract

Bibliographical note

Keywords

Access to Document

Fingerprint

Cite this