Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions
Abstract: The normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the tt¯(Formula presented.) + 1-jet system. This distribution can be used for a precise determination of the top-qua...
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paper:paper_11266708_v2015_n10_p_TheATLAScollaboration2023-06-08T16:08:36Z Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions Hadron-Hadron Scattering Top physics Abstract: The normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the tt¯(Formula presented.) + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. The experimental analysis is based on proton-proton collision data collected by the ATLAS detector at the LHC with a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.6 fb −1 . The selected events were identified using the lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. The observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. With this method, the measured value of the top-quark pole mass, m t pole , is:mtpole=173.7±1.5stat.±1.4syst.−0.5+1.0theoryGeV.(Formula presented.). This result represents the most precise measurement of the top-quark pole mass to date.[Figure not available: see fulltext.] © 2015, The Author(s). 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n10_p_TheATLAScollaboration http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n10_p_TheATLAScollaboration |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Hadron-Hadron Scattering Top physics |
spellingShingle |
Hadron-Hadron Scattering Top physics Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
topic_facet |
Hadron-Hadron Scattering Top physics |
description |
Abstract: The normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the tt¯(Formula presented.) + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. The experimental analysis is based on proton-proton collision data collected by the ATLAS detector at the LHC with a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.6 fb −1 . The selected events were identified using the lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. The observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. With this method, the measured value of the top-quark pole mass, m t pole , is:mtpole=173.7±1.5stat.±1.4syst.−0.5+1.0theoryGeV.(Formula presented.). This result represents the most precise measurement of the top-quark pole mass to date.[Figure not available: see fulltext.] © 2015, The Author(s). |
title |
Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
title_short |
Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
title_full |
Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
title_fullStr |
Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
title_full_unstemmed |
Determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
title_sort |
determination of the top-quark pole mass using tt¯tt¯ + 1-jet events collected with the atlas experiment in 7 tev pp collisions |
publishDate |
2015 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n10_p_TheATLAScollaboration http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n10_p_TheATLAScollaboration |
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1768541951348441088 |