Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5375
Title: Search for heavy quarks decaying into a top quark and a W or Z boson using lepton + jets events in pp collisions at ?s = 7 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Quark
Leptons
Jets
Heavy quarks
CMS experiment
Issue Date: 2013
Publisher: Springer Verlag
Source: Chatrchyan, S, Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Aguilo, E., Bergauer, T., ...CMS Collaboration (2013). Search for heavy quarks decaying into a top quark and a W or Z boson using lepton + jets events in pp collisions at √s = 7 TeV. Journal of High Energy Physics, 2013(1). doi:10.1007/JHEP01(2013)154
Abstract: Results are presented from a search for the pair-production of heavy quarks, QQ̄, that decay exclusively into a top quark and a W or Z boson. The search is performed using a sample of proton-proton collisions at √s = 7 TeV corresponding to an integrated luminosity of 5.0 fb-1, collected by the Compact Muon Solenoid experiment. The signal region is defined using a sample of events containing one electron or muon, missing transverse momentum, and at least four jets with large transverse momenta, where one jet is likely to originate from the decay of a bottom quark. No significant excess of events is observed with respect to the standard model expectations. Assuming a strong pair-production mechanism, quark masses below 675 (625) GeV decaying into tW (tZ) are excluded at the 95 % confidence level.[Figure not available: see fulltext.] © 2013 CERN for the benefit of the CMS collaboration.
URI: http://doi.org/10.1007/JHEP01(2013)154
http://hdl.handle.net/11147/5375
ISSN: 1029-8479
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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