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.; Suarez Gonzalez, J.; 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.; Abu Zeid, S.; 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.; 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.; Salva, S.; Schöfbeck, R.; Tytgat, M.; Van Driessche, W.; Yazgan, E.; Zaganidis, N.; Bakhshiansohi, H.; Beluffi, C.; Bondu, O.; Brochet, S. et al.
Referencia bibliográfica
Physics Letters B, Volume 772, p. 634-656.
Fecha de publicación:
9
2017
Número de citas
11
Número de citas referidas
11
Descripción
A search is presented for a heavy vector-like quark, decaying into a b
quark and a W boson, which is produced singly in association with a
light flavor quark and a b quark. The analysis is performed using a data
sample of proton-proton collisions at a center-of-mass energy of √{
s} = 13TeV collected at the LHC in 2015. The data set used in the
analysis corresponds to an integrated luminosity of 2.3fb-1.
The search is carried out using events containing one electron or muon,
at least one b-tagged jet with large transverse momentum, at least one
jet in the forward region of the detector, and missing transverse
momentum. No excess over the standard model prediction is observed.
Upper limits are placed on the production cross section of heavy exotic
quarks: a T quark with a charge of 2/3, and a Y quark with a charge of -
4 / 3. For Y quarks with coupling of 0.5 and B (Y → bW) = 100%, the
observed (expected) lower mass limits are 1.40 (1.0)TeV. This is the
most stringent limit to date on the single production of the Y
vector-like quark.