Measurement of the top-quark mass in t[bar over t] events with dilepton final states in pp collisions at s√=7 TeV
Name
Measurement of the top.pdf
Size
814.32 KB
Format
Adobe PDF
Checksum (MD5)
66541240f2a04817ab910c4e15f6b755
Author(s)
Apyan, Aram
Bauer, Gerry P
Bendavid, Joshua L.
Busza, Wit
Cali, Ivan Amos
Dutta, Valentina
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Hahn, Kristian Allan
Klute, Markus
Alternative Title
Measurement of the top-quark mass in tt¯ events with dilepton final states in pp collisions at s√=7 TeV
Date Issued
October 2012
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
The CMS Collaboration et al. “Measurement of the Top-Quark Mass in t[bar over t] Events with Dilepton Final States in Pp Collisions at √s=7 TeV.” The European Physical Journal C 72.10 (2012): n. pag. © 2012 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
The top-quark mass is measured in proton-proton collisions at s√=7 TeV using a data sample corresponding to an integrated luminosity of 5.0 fb[superscript −1] collected by the CMS experiment at the LHC. The measurement is performed in the dilepton decay channel t[bar over t]→(ℓ[superscript +]ν[subscript ℓ]b)(ℓ[superscript −][bar over ν][subscript ℓ][bar over b]), where ℓ=e,μ. Candidate top-quark decays are selected by requiring two leptons, at least two jets, and imbalance in transverse momentum. The mass is reconstructed with an analytical matrix weighting technique using distributions derived from simulated samples. Using a maximum-likelihood fit, the top-quark mass is determined to be 172.5±0.4 (stat.)±1.5 (syst.) GeV.
Subjects
Springer-Verlag
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-012-2202-z
