Bibcode
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Grossmann, J.; Hrubec, J.; Jeitler, M.; König, A.; Krammer, N.; Krätschmer, I.; Liko, D.; Madlener, T.; Mikulec, I.; Pree, E.; Rad, N.; Rohringer, H.; Schieck, J.; Schöfbeck, R.; Spanring, M.; Spitzbart, D.; Taurok, A.; Waltenberger, W.; Wittmann, J.; Wulz, C.-E.; Zarucki, M.; Chekhovsky, V.; Mossolov, V.; Gonzalez, J. Suarez; De Wolf, E. A.; Di Croce, D.; Janssen, X.; Lauwers, J.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Abu Zeid, S.; Blekman, F.; D'Hondt, J.; De Bruyn, I.; De Clercq, J.; Deroover, K.; Flouris, G.; Lontkovskyi, D.; Lowette, S.; Marchesini, I.; Moortgat, S.; Moreels, L.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Beghin, D.; Bilin, B.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Dorney, B.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Kalsi, A. K.; Lenzi, T.; Luetic, J.; Maerschalk, T.; Marinov, A.; Seva, T.; Starling, E.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Zenoni, F.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Roskas, C.; Salva, S.; Trocino, D.; Tytgat, M.; Verbeke, W.; Vit, M. et al.
Referencia bibliográfica
Journal of High Energy Physics, Volume 2018, Issue 6, article id. 102, 37 pp.
Fecha de publicación:
6
2018
Número de citas
58
Número de citas referidas
41
Descripción
A search for flavor-changing neutral currents (FCNC) in events with the
top quark and the Higgs boson is presented. The Higgs boson decay to a
pair of b quarks is considered. The data sample corresponds to an
integrated luminosity of 35.9 fb-1 recorded by the CMS
experiment at the LHC in proton-proton collisions at √{s}=13 TeV.
Two channels are considered: single top quark FCNC production in
association with the Higgs boson (pp → tH), and top quark pair
production with FCNC decay of the top quark (t → qH). Final states
with one isolated lepton and at least three reconstructed jets, among
which at least two are associated with b quarks, are studied. No
significant deviation is observed from the predicted background.
Observed (expected) upper limits at 95% confidence level are set on the
branching fractions of top quark decays, ℬ(t → uH) <
0.47% (0.34%) and ℬ(t → cH) < 0.47% (0.44%), assuming a
single nonzero FCNC coupling.