Cover Image

Measurement of the top quark mass in the tt [bar] [right arrow] lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results

The top quark mass is measured using a template method in the tt¯→lepton+jetstt¯→lepton+jetst\bar{t} \rightarrow \mathrm {lepton+jets} channel (lepton is e or μμ\mu ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of s√=8s=8{\sqrt{s}} =8 Te...

Full description

Saved in:
Bibliographic Details
Main Authors: Aaboud, Morad (Author) , Anders, Christoph (Author) , Andrei, George Victor (Author) , Antel, Claire (Author) , Bolz, Arthur (Author) , Brandt, Oleg (Author) , Dunford, Monica (Author) , Ferreira de Lima, Danilo Enoque (Author) , Franchino, Silvia (Author) , Jongmanns, Jan (Author) , Kolb, Mathis (Author) , Kugel, Andreas (Author) , Meyer zu Theenhausen, Hanno (Author) , Napolitano, Fabrizio (Author) , S̜ahinsoy, Merve (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Spieker, Thomas (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Suchek, Stanislav (Author) , Wang, Jike (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Yue, Xiaoguang (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 29 March 2019
In: The European physical journal. C, Particles and fields
Year: 2019, Volume: 79, Issue: 4
ISSN:1434-6052
DOI:10.1140/epjc/s10052-019-6757-9
Online Access:Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-019-6757-9
Get full text
Author Notes:ATLAS Collaboration
Description
Summary:The top quark mass is measured using a template method in the tt¯→lepton+jetstt¯→lepton+jetst\bar{t} \rightarrow \mathrm {lepton+jets} channel (lepton is e or μμ\mu ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of s√=8s=8{\sqrt{s}} =8 TeVTeV\text {TeV} and correspond to an integrated luminosity of 20.220.220.2 fb−1−1^{-1}. The tt¯→lepton+jetstt¯→lepton+jetst\bar{t} \rightarrow \mathrm {lepton+jets} channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be mtop=172.08±0.39(stat)±0.82(syst)mtop=172.08±0.39(stat)±0.82(syst)m_{\mathrm {top}} =172.08 \,\pm \,0.39 \,\mathrm {(stat)}\,\pm \,0.82 \,\mathrm {(syst)} GeVGeV\text {GeV}. A combination with previous ATLAS mtopmtopm_{\mathrm {top}} measurements gives mtop=172.69±0.25(stat)±0.41(syst)mtop=172.69±0.25(stat)±0.41(syst)m_{\mathrm {top}} = 172.69 \,\pm \,0.25 \,\mathrm {(stat)}\,\pm \,0.41 \,\mathrm {(syst)} GeVGeV\text {GeV}.
Item Description:ATLAS Collaboration: M. Aaboud, C.F. Anders, V.Andrei, C. Antel, A.E. Bolz, O. Brandt, M. Dunford, D.E. Ferreira de Lima, S. Franchino, J. Jongmanns, M. Kolb, A. Kugel, H. Meyer Zu Theenhausen, F. Napolitano, M. Sahinsoy, A. Schoening, H-C. Schultz-Coulon, T.M. Spieker, R. Stamen, P. Starovoitov, S. Suchek, J. Wang, S.M. Weber, M. Wessels, X. Yue [und weitere]
Gesehen am 01.08.2019
Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-019-6757-9

Similar Items