Measurement of the top quark mass in the tt→dilepton channel from √s=8TeV ATLAS data

The ATLAS Collaboration

doi:10.1016/j.physletb.2016.08.042

Measurement of the top quark mass in the tt→dilepton channel from √s=8TeV ATLAS data

The ATLAS Collaboration

Department of Physics

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

Abstract

The top quark mass is measured in the tt→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s=8TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, the top quark mass is measured to be m top=172.99 ±0.41 (stat) ± 0.74 (syst) GeV , with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS mtop measurements from √s=& TeVdata in the tt→dilepton and tt→dilepton + jets channels results in mtop=172.84±0.34 (stat)±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.

Original language	English
Pages (from-to)	350–371
Number of pages	22
Journal	Physics Letters B
Volume	761
Early online date	24 Aug 2016
DOIs	https://doi.org/10.1016/j.physletb.2016.08.042
Publication status	Published - 10 Oct 2016

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http://www.sciencedirect.com/science/article/pii/S0370269316304622

Cite this

@article{f81931b62c824a6596c44c020ddd2dc6,

title = "Measurement of the top quark mass in the tt→dilepton channel from √s=8TeV ATLAS data",

abstract = "The top quark mass is measured in the tt→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s=8TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, the top quark mass is measured to be m top=172.99 ±0.41 (stat) ± 0.74 (syst) GeV , with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS mtop measurements from √s=& TeVdata in the tt→dilepton and tt→dilepton + jets channels results in mtop=172.84±0.34 (stat)±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.",

author = "{The ATLAS Collaboration}",

year = "2016",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2016.08.042",

language = "English",

volume = "761",

pages = "350–371",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Measurement of the top quark mass in the tt→dilepton channel from √s=8TeV ATLAS data

AU - The ATLAS Collaboration

PY - 2016/10/10

Y1 - 2016/10/10

N2 - The top quark mass is measured in the tt→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s=8TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, the top quark mass is measured to be m top=172.99 ±0.41 (stat) ± 0.74 (syst) GeV , with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS mtop measurements from √s=& TeVdata in the tt→dilepton and tt→dilepton + jets channels results in mtop=172.84±0.34 (stat)±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.

AB - The top quark mass is measured in the tt→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s=8TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, the top quark mass is measured to be m top=172.99 ±0.41 (stat) ± 0.74 (syst) GeV , with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS mtop measurements from √s=& TeVdata in the tt→dilepton and tt→dilepton + jets channels results in mtop=172.84±0.34 (stat)±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.

U2 - 10.1016/j.physletb.2016.08.042

DO - 10.1016/j.physletb.2016.08.042

M3 - Article

SN - 0370-2693

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JO - Physics Letters B

JF - Physics Letters B

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