Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/9459
Title: | Measurement of the top quark mass in the t(t)over-bar -> dilepton channel from root s=8TeVATLAS data | Authors: | Aaboud, M. Aad, G. Abbott, B. Abdallah, J. Abdinov, O. Abeloos, B. Adelman, J. |
Keywords: | Parton Distributions Pair Production Cross-Section Plus Plus Fragmentation Physics Model Lhc |
Publisher: | Elsevier | Abstract: | The top quark mass is measured in the t (t) over bar -> dilepton channel (lepton= e, mu) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of root 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-jetpairs, the top quark mass is measured to be m(top) = 172.99 +/- 0.41(stat)+/- 0.74(syst) GeV, with a total uncertainty of 0.84 GeV. Finally, acombination with previous ATLAS m(top) measurements from root s = 7 TeV data in the t (t) over bar -> dilepton and t (t) over bar -> lepton + jets channels results in m(top) = 172.84 +/- 0.34(stat)+/- 0.61(syst) GeV, with a total uncertainty of 0.70 GeV. (C) 2016 The Author. Published by Elsevier B.V. | URI: | https://doi.org/10.1016/j.physletb.2016.08.042 https://hdl.handle.net/20.500.11851/9459 |
ISSN: | 0370-2693 1873-2445 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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