Franconi, Laura; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Anders, John Kenneth; Beck, Hans Peter; Ereditato, Antonio; Weston, Thomas Daniel (2019). Measurement of the top-quark mass in tt¯+ 1-jet events collected with the ATLAS detector in pp collisions at s√= 8 TeV. Journal of High Energy Physics, 2019(11) Springer 10.1007/JHEP11(2019)150
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Aad2019_Article_MeasurementOfTheTop-quarkMassI.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (737kB) | Preview |
A determination of the top-quark mass is presented using 20.2 fb−1 of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is:
mpolet=171.1±0.4(stat)±0.9(syst)+0.7−0.3(theo)GeV
The extracted value in the running-mass scheme is:
mt(mt)=162.9±0.5(stat)±1.0(syst)+2.1−1.2(theo)GeV.
The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Franconi, Laura, Miucci, Antonio, Merlassino, Claudia, Haug, Sigve, Weber, Michele, Anders, John Kenneth, Beck, Hans Peter, Ereditato, Antonio, Weston, Thomas Daniel |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
BORIS Import LHEP |
Date Deposited: |
16 Jun 2020 11:37 |
Last Modified: |
05 Dec 2022 15:38 |
Publisher DOI: |
10.1007/JHEP11(2019)150 |
Additional Information: |
Kollaboration - Es sind nur die Berner AutorInnen namentlich erwaehnt; The ATLAS Collaboration |
BORIS DOI: |
10.7892/boris.143580 |
URI: |
https://boris.unibe.ch/id/eprint/143580 |
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