Measurement of the top quark mass in the tt[bar] → dilepton channel from √ s = 8 TeV ATLAS data

The top quark mass is measured in the tt¯→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of s=8 TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and us...

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Main Authors: Aaboud, Morad (Author) , Anders, Christoph (Author) , Andrei, George Victor (Author) , Antel, Claire (Author) , Baas, Alessandra Edda (Author) , Brandt, Oleg (Author) , Djuvsland, Julia Isabell (Author) , Dunford, Monica (Author) , Ferreira de Lima, Danilo Enoque (Author) , Geisler, Manuel Patrice (Author) , Giulini, Maddalena (Author) , Hanke, Paul (Author) , Jongmanns, Jan (Author) , Kluge, Eike-Erik (Author) , Kolb, Mathis (Author) , Kretz, Moritz (Author) , Kugel, Andreas (Author) , Lang, Valerie (Author) , Lisovyi, Mykhailo (Author) , Meier, Karlheinz (Author) , Meyer zu Theenhausen, Hanno (Author) , Narrias Villar, Daniel Isaac (Author) , Radescu, Voica (Author) , S̜ahinsoy, Merve (Author) , Schätzel, Sebastian (Author) , Scharf, Veit (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sosa Corral, David E. (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Suchek, Stanislav (Author) , Wessels, Martin (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 24 August 2016
In: Physics letters
Year: 2016, Volume: 761, Pages: 350-371
ISSN:1873-2445
DOI:10.1016/j.physletb.2016.08.042
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2016.08.042
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269316304622
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Author Notes:The ATLAS Collaboration*
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Summary:The top quark mass is measured in the tt¯→dilepton channel (lepton=e,μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of s=8 TeV and correspond to an integrated luminosity of about 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton-b-jet pairs, the top quark mass is measured to be mtop=172.99±0.41 (stat)±0.74 (syst) GeV, with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS mtop measurements from s=7 TeV data in the tt¯→dilepton and tt¯→lepton+jets channels results in mtop=172.84±0.34 (stat)±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.
Item Description:*The ATLAS Collaboration: M. Aaboud, C.F. Anders, V. Andrei, C. Antel, A.E. Baas, O. Brandt, J.I. Djuvsland, M. Dunford, D.E. Ferreira de Lima, M.P. Geisler, M. Giulini, P. Hanke, J. Jongmanns, E.-E. Kluge, M. Kolb, M. Kretz, A. Kugel, V.S. Lang, M. Lisovyi, K. Meier, H. Meyer zu Theenhausen, D.I. Narrias Villar, V. Radescu, M. Sahinsoy, S. Schaetzel, V. Scharf, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, P. Starovoitov, S. Suchek, M. Wessels [und 2824 weitere Personen]
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Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2016.08.042