Bibcode
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; 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.; Waltenberger, W.; Wulz, C.-E.; Dvornikov, O.; Makarenko, V.; Mossolov, V.; Gonzalez, J. Suarez; Zykunov, V.; Shumeiko, N.; Alderweireldt, S.; De Wolf, E. A.; Janssen, X.; Lauwers, J.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Zeid, S. Abu; Blekman, F.; D'Hondt, J.; Daci, N.; De Bruyn, I.; Deroover, K.; Lowette, S.; Moortgat, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Brun, H.; 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.; Velde, C. Vander; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Zenoni, F.; Zhang, F.; Cimmino, A.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Salva, S.; Schöfbeck, R.; Tytgat, M.; Van Driessche, W.; Yazgan, E.; Zaganidis, N.; Bakhshiansohi, H.; Beluffi, C.; Bondu, O.; Brochet, S. et al.
Bibliographical reference
Journal of High Energy Physics, Volume 2017, Issue 9, article id.53, 42 pp.
Advertised on:
9
2017
Citations
4
Refereed citations
4
Description
A search is presented for massive spin-1 Z' resonances
decaying to a top quark and a heavy vector-like top quark partner T. The
search is based on a 2.6 fb-1 sample of proton-proton
collisions at 13 TeV collected with the CMS detector at the LHC. The
analysis is optimized for final states in which the T quark decays to a
W boson and a bottom quark. The focus is on all-jet final states in
which both the W boson and the top quark decay into quarks that evolve
into jets. The decay products of the top quark and of the W boson are
assumed to be highly Lorentz-boosted and cannot be reconstructed as
separate jets, but are instead reconstructed as merged, wide jets.
Techniques for the identification of jet substructure and jet flavour
are used to distinguish signal from background events. Several models
for Z' bosons decaying to T quarks are excluded at 95%
confidence level, with upper limits on the cross section ranging from
0.13 to 10 pb, depending on the chosen hypotheses. This is the first
search for a neutral spin-1 heavy resonance decaying to a top quark and
a vector-like T quark in the all-hadronic final state. [Figure not
available: see fulltext.]