Title: | Measurement of the mass of the top quark in decays with a J/ψ meson in pp collisions at 8 TeV |
Authors: | The, CMSC Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Asilar, E Bergauer, T Brandstetter, J Brondolin, E Dragicevic, M Erö, J Flechl, M Friedl, M Frühwirth, R Ghete, VM Hartl, C Hörmann, N Hrubec, J Jeitler, M König, A Krätschmer, I Liko, D Matsushita, T Mikulec, I Rabady, D Rad, N Rahbaran, B Rohringer, H Schieck, J Strauss, J Treberer-Treberspurg, W Waltenberger, W Wulz, CE Mossolov, V Shumeiko, N Suarez Gonzalez, J Alderweireldt, S De Wolf, EA Janssen, X Lauwers, J Van De Klundert, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Abu Zeid, S Blekman, F D Hondt, J Daci, N De Bruyn, I Deroover, K Heracleous, N Lowette, S Moortgat, S Moreels, L Olbrechts, A Python, Q Tavernier, S Van Doninck, W Van Mulders, P Van Parijs, I Brun, H Caillol, C Clerbaux, B De Lentdecker, G Delannoy, H Fasanella, G Favart, L Goldouzian, R Grebenyuk, A Karapostoli, G Lenzi, T Léonard, A Luetic, J Maerschalk, T Marinov, A Randle-conde, A Seva, T Vander Velde, C Vanlaer, P Yonamine, R Zenoni, F Zhang, F Cimmino, A Cornelis, T Dobur, D Fagot, A Garcia, G Gul, M Poyraz, D Salva, S Schöfbeck, R Tytgat, M Van Driessche, W Yazgan, E |
Keywords: | Hadron-Hadron scattering (experiments);Top physics |
Issue Date: | 2016 |
Publisher: | Springer Verlag |
Citation: | Journal of High Energy Physics, 12(123): pp. 1-39, (2016) |
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 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. |
URI: | http://bura.brunel.ac.uk/handle/2438/13848 |
DOI: | http://dx.doi.org/10.1007/JHEP12(2016)123 |
ISSN: | 1029-8479 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers
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