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

Aaboud, M.
•
Aad, G.
•
Abbott, B.
altro
GIORDANI, Mario
2016
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
The top quark mass is measured in the tt̄ → dileptonchannel (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 20.2fb-1. Exploiting the template method, and using the distribution of invariant masses of lepton-b-jetpairs, 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, acombination with previous ATLAS mtop measurements from √s=7TeVdata in the tt̄ → dilepton and tt̄→lepton+jetschannels results in mtop=172.84 ±0.34 (stat) ±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV. © 2016 The Author.
DOI
10.1016/j.physletb.2016.08.042
WOS
WOS:000384469900052
Archivio
http://hdl.handle.net/11390/1097413
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85040834034
http://www.sciencedirect.com/science/article/pii/S0370269316304622
Diritti
metadata only access
Scopus© citazioni
83
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Web of Science© citazioni
68
Data di acquisizione
Mar 27, 2024
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