Search for single productio no vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at √s=13 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of High Energy Physics (Q1)
Dergi ISSN 1029-8479 Dergi Bilgileri (2017)
Makale Dili İngilizce Basım Tarihi 05-2017
Cilt / Sayı / Sayfa 2017 / 5 / 1–37 DOI 10.1007/JHEP05(2017)029
Makale Linki https://doi.org/10.1007/jhep05(2017)029
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A search for single production of vector-like quarks, T and B, decaying into a Z boson and a top or a bottom quark, respectively, is presented. The search is performed using data collected by the CMS experiment at the LHC in proton-proton collisions at TeV, corresponding to an integrated luminosity of 2.3 fb− 1. An exotic T quark production mode through the decay of a heavy Z′ resonance is also considered. The search is performed in events with a Z boson decaying leptonically, accompanied by a bottom or a top quark decaying hadronically. No excess of events is observed over the standard model background expectation. Products of production cross section and branching fraction for T and B quarks from 1.26 and 0.13 pb are excluded at 95% confidence level for the range of resonance mass considered, which is between 0.7 and 1.7 TeV. Limits on the product of the Z′ boson production cross section …
Anahtar Kelimeler
Beyond Standard Model | Hadron-Hadron scattering (experiments) | vectorlike quarks