Measurement of the mass of the top quark in decays with a J/? meson in pp collisions at 8 TeV

Date

2016-12-22

Authors

The, C. M. S. collaboration
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

A first measurement of the top quark mass in the decay channel t ? (W ? ??) (b ? J/? + X ? ?+?? + 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/? candidate decaying into an oppositely-charged muon pair. The mass of the (J/? + ?) system, where ? 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. © 2016, The Author(s).

Description

Citation: The, C. M. S. c., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., . . . Woods, N. (2016). 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). doi:10.1007/JHEP12(2016)123

Keywords

Hadron-Hadron Scattering (Experiments), Top Physics

Citation