Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at √s=7 and 8 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 02-2017
Cilt / Sayı / Sayfa 2017 / 2 / 28–0 DOI 10.1007/JHEP02(2017)028
Makale Linki https://hdl.handle.net/11424/242010
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
Single top quark events produced in the t channel are used to set limits on anomalous Wtb couplings and to search for top quark flavour-changing neutral current (FCNC) interactions. The data taken with the CMS detector at the LHC in proton-proton collisions at and 8 TeV correspond to integrated luminosities of 5.0 and 19.7 fb− 1, respectively. The analysis is performed using events with one muon and two or three jets. A Bayesian neural network technique is used to discriminate between the signal and backgrounds, which are observed to be consistent with the standard model prediction. The 95% confidence level (CL) exclusion limits on anomalous right-handed vector, and left-and right-handed tensor Wtb couplings are measured to be| f R V|< 0.16,| f L T|< 0.057, and− 0.049< f R T< 0.048, respectively. For the FCNC couplings κ tug and κ tcg, the 95% CL upper limits on coupling strengths are| κ tug|/Λ< 4.1 …
Anahtar Kelimeler
Flavour Changing Neutral Currents | Hadron-Hadron scattering (experiments) | Top physics
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 51
Scopus 54
Google Scholar 155
Google Scholar 151
Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at √s=7 and 8 TeV

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