Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV
Name
Khachatryan2016_Article_MeasurementOfTheMassOfTheTopQu.pdf
Description
Published version
Size
869.94 KB
Format
Adobe PDF
Checksum (MD5)
32ad9d9aa1ba1a37914730071638b2a5
Author(s)
The CMS Collaboration
Date Issued
2016
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
The, C. M. S. collaboration, et al. "Measurement of the Mass of the Top Quark in Decays with a J/? Meson in Pp Collisions at 8 Tev." Journal of High Energy Physics 2016 12 (2016).
Version
Final published version
Abstract
© 2016, The Author(s). A first measurement of the top quark mass in the decay channel t → (W → ℓν) (b → J/ψ + X → μ+μ− + X) is presented. The analysis uses events selected from the proton-proton collisions recorded by the CMS detector at the LHC at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of 19.7 fb−1, with 666 t t ¯ and single top quark candidate events containing a reconstructed J/ψ candidate decaying into an oppositely-charged muon pair. The mass of the (J/ψ + ℓ) system, where ℓ is an electron or a muon from W boson decay, is used to extract a top quark mass of 173.5 ± 3.0 (stat) ± 0.9 (syst) GeV.
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
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DOI of Published Version
https://doi.org/10.1007/JHEP12(2016)123
