Search for pair produced fourth-generation up-type quarks in pp collisions at√
Yazarlar (16)
CMS Collaboration
S Chatrchyan
V Khachatryan
AM Sirunyan
Doç. Dr. Mustafa Numan BAKIRCI Türkiye
C Amsler
V Chiochia
S De Visscher
C Favaro
M Ivova Rikova
B Millan Mejias
P Otiougova
P Robmann
H Snoek
S Tupputi
M Verzetti Tokat Gaziosmanpaşa Üniversitesi
| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | Physics Letters B | ||
| Makale Dili | – | Basım Tarihi | 01-2012 |
| Cilt / Sayı / Sayfa | 718 / 0 / 307–328 | DOI | – |
| Makale Linki | https://scholar.google.com/scholar?cluster=13730378629596926130&hl=en&oi=scholarr | ||
| UAK Araştırma Alanları |
Yüksek Enerji ve Parçacık Fiziği
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| Özet |
| The results of a search for the pair production of a fourth-generation up-type quark (t) in proton–proton collisions at View the MathML source are presented, using data corresponding to an integrated luminosity of about 5.0 fb− 1 collected by the Compact Muon Solenoid experiment at the LHC. The t quark is assumed to decay exclusively to a W boson and ab quark. Events with a single isolated electron or muon, missing transverse momentum, and at least four hadronic jets, of which at least one must be identified as ab jet, are selected. No significant excess of events over standard model expectations is observed. Upper limits for the View the MathML source production cross section at 95% confidence level are set as a function of t mass, and t-quark production for masses below 570 GeV is excluded. The search is equally sensitive to nonchiral heavy quarks decaying to Wb. In this case, the results can be interpreted as upper limits on the production cross section times the branching fraction to Wb. |
| Anahtar Kelimeler |
