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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2605| Title: | Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV |
| Authors: | CMS Collaboration Khachatryan, V. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. RANE, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | Quark in decays pp collisions Hadron-Hadron scattering experiments Top physics 2016 |
| Issue Date: | Dec-2016 |
| Publisher: | Springer Nature |
| Citation: | Journal of High Energy Physics, 2016(123). |
| Abstract: | 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 tt¯ 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. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2605 https://doi.org/10.1007/JHEP12(2016)123 |
| ISSN: | 1126-6708 1029-8479 |
| Appears in Collections: | JOURNAL ARTICLES |
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