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Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV

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Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV. / The ATLAS collaboration.

In: European Physical Journal C: Particles and Fields, Vol. 75, No. 4, 158, 04.2015.

Research output: Contribution to journalJournal articlepeer-review

Harvard

The ATLAS collaboration 2015, 'Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV', European Physical Journal C: Particles and Fields, vol. 75, no. 4, 158. https://doi.org/10.1140/epjc/s10052-015-3373-1

APA

The ATLAS collaboration (2015). Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV. European Physical Journal C: Particles and Fields, 75(4), [158]. https://doi.org/10.1140/epjc/s10052-015-3373-1

Vancouver

The ATLAS collaboration. Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV. European Physical Journal C: Particles and Fields. 2015 Apr;75(4). 158. https://doi.org/10.1140/epjc/s10052-015-3373-1

Author

The ATLAS collaboration. / Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV. In: European Physical Journal C: Particles and Fields. 2015 ; Vol. 75, No. 4.

Bibtex

@article{0526bab0b45440d48b9520eb28d40fb8,
title = "Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV",
abstract = "The mass of the top quark is measured in a data set corresponding to 4.6 fb −1 of proton–proton collisions with centre-of-mass energy s √ =7 TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b -quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of m t =175.1±1.4(stat.) ±1.2(syst.) GeV. ",
keywords = "ATLAS, LHC, Proton-proton collisions, Top quark, Top quark mass, Fully hadronic",
author = "Lee Allison and Adam Barton and Michael Beattie and Guennadi Borissov and Eva Bouhova-Thacker and Alexandre Chilingarov and William Dearnaley and Harald Fox and Kathryn Grimm and Robert Henderson and Gareth Hughes and Jones, {Roger William Lewis} and Vakhtang Kartvelishvili and Robin Long and Peter Love and Harvey Maddocks and Maria Smizanska and James Walder and {The ATLAS collaboration}",
note = " {\textcopyright} CERN for the benefit of the ATLAS Collaboration 2015. This article is published with open access at Springerlink.com",
year = "2015",
month = apr,
doi = "10.1140/epjc/s10052-015-3373-1",
language = "English",
volume = "75",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "SPRINGER",
number = "4",

}

RIS

TY - JOUR

T1 - Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at s √ =7TeV

AU - Allison, Lee

AU - Barton, Adam

AU - Beattie, Michael

AU - Borissov, Guennadi

AU - Bouhova-Thacker, Eva

AU - Chilingarov, Alexandre

AU - Dearnaley, William

AU - Fox, Harald

AU - Grimm, Kathryn

AU - Henderson, Robert

AU - Hughes, Gareth

AU - Jones, Roger William Lewis

AU - Kartvelishvili, Vakhtang

AU - Long, Robin

AU - Love, Peter

AU - Maddocks, Harvey

AU - Smizanska, Maria

AU - Walder, James

AU - The ATLAS collaboration

N1 - © CERN for the benefit of the ATLAS Collaboration 2015. This article is published with open access at Springerlink.com

PY - 2015/4

Y1 - 2015/4

N2 - The mass of the top quark is measured in a data set corresponding to 4.6 fb −1 of proton–proton collisions with centre-of-mass energy s √ =7 TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b -quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of m t =175.1±1.4(stat.) ±1.2(syst.) GeV.

AB - The mass of the top quark is measured in a data set corresponding to 4.6 fb −1 of proton–proton collisions with centre-of-mass energy s √ =7 TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b -quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of m t =175.1±1.4(stat.) ±1.2(syst.) GeV.

KW - ATLAS

KW - LHC

KW - Proton-proton collisions

KW - Top quark

KW - Top quark mass

KW - Fully hadronic

U2 - 10.1140/epjc/s10052-015-3373-1

DO - 10.1140/epjc/s10052-015-3373-1

M3 - Journal article

VL - 75

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 4

M1 - 158

ER -