Measurement of the mass of the top quark in decays with a J/psi meson in pp collisions at 8 TeV
(2016) Journal of High Energy Physics — Vol. 1612, n° 1612, p. 123 (2016)
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- Authors
Wertz, Sébastien 
- et. al.
- Abstract
- A first measurement of the top quark mass using the decay channel t to (W to l nu) (b to J/psi + X to mu+ mu- + X) is presented. The analysis uses events selected from the proton-proton collisions recorded with 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 inverse femtobarns, with 666 t t-bar and single top quark candidate events containing a reconstructed J/psi candidate decaying into an oppositely-charged muon pair. The mass of the (J/psi + 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.
- Affiliations
Citations
CMS, Bakhshiansohi, H., Beluffi, C., Bondu, O., Brochet, S., Bruno, G., Caudron, A., de Visscher, S., Delaere, C., Delcourt, M., François, B., Giammanco, A., Jafari, A., Jez, P., Komm, M., Lemaitre, V., Magitteri, A., Mertens, A., Musich, M., et al. (2016). Measurement of the mass of the top quark in decays with a J/psi meson in pp collisions at 8 TeV. Journal of High Energy Physics, 1612(1612), 123. https://doi.org/10.1007/JHEP12(2016)123 (Original work published 2016)