Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3319
Title: Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at ?s = 8 TeV
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Hadron-Hadron scattering (experiments)
top physics
Issue Date: Nov-2019
Publisher: Springer
Source: ATLAS collaboration. (2019). Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at ?s = 8 TeV. European Physical Journal C, 2019(11).
Abstract: 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: mtpole=171.1±0.4(stat)±0.9(syst)−0.3+0.7(theo)GeV The extracted value in the running-mass scheme is: mt(mt)=162.9±0.5(stat)±1.0(syst)−1.2+2.1(theo)GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other. [Figure not available: see fulltext.] © 2019, The Author(s).
URI: https://link.springer.com/article/10.1007%2FJHEP11%282019%29150
https://hdl.handle.net/20.500.11851/3319
ISSN: 11266708
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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