Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV
V. Khachatryan , Adrian Byszuk , Agnieszka Zagoździńska
AbstractA first measurement of the top quark mass in the decay channel t → (W → `ν)(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-ofmass 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 + `) 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.
|Collective author||CMS Collaboration|
|Total number of authors||2263|
|Journal series||Journal of High Energy Physics, ISSN 1029-8479 [1126-6708]|
|Publication size in sheets||1.9|
|Keywords in English||Hadron-Hadron scattering (experiments), Top physics|
|Score|| = 40.0, 06-04-2017, ArticleFromJournal|
= 40.0, 06-04-2017, ArticleFromJournal
|Publication indicators||: 2016 = 6.063 (2) - 2016=4.992 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.