Bibcode
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; 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.; Waltenberger, W.; Wittmann, J.; Wulz, C.-E.; Zarucki, M.; Chekhovsky, V.; Mossolov, V.; Suarez Gonzalez, J.; 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.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Dorney, B.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Luetic, J.; Maerschalk, T.; Marinov, A.; Seva, T.; Starling, E.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Zenoni, F.; Zhang, F.; Cimmino, A.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Roskas, C.; Salva, S.; Tytgat, M.; Verbeke, W.; Zaganidis, N.; Bakhshiansohi, H.; Bondu, O. et al.
Referencia bibliográfica
Journal of High Energy Physics, Volume 2018, Issue 6, article id. #27, 54 pp.
Fecha de publicación:
6
2018
Número de citas
18
Número de citas referidas
18
Descripción
A search for dark matter is conducted in events with large missing
transverse momentum and a hadronically decaying, Lorentz-boosted top
quark. This study is performed using proton-proton collisions at a
center-of-mass energy of 13 TeV, in data recorded by the CMS detector in
2016 at the LHC, corresponding to an integrated luminosity of 36
fb-1. New substructure techniques, including the novel use of
energy correlation functions, are utilized to identify the decay
products of the top quark. With no significant deviations observed from
predictions of the standard model, limits are placed on the production
of new heavy bosons coupling to dark matter particles. For a scenario
with purely vector-like or purely axial-vector-like flavor changing
neutral currents, mediator masses between 0.20 and 1.75 TeV are excluded
at 95% confidence level, given a sufficiently small dark matter mass.
Scalar resonances decaying into a top quark and a dark matter fermion
are excluded for masses below 3.4 TeV, assuming a dark matter mass of
100 GeV.