Search for Flavor Changing Neutral Currents in Top Quark Decays t Zqin pp Collisions at root s 8 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physical Review Letters (Q1)
Dergi ISSN 0031-9007 Dergi Bilgileri (2014)
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 01-2014
Kabul Tarihi – Yayınlanma Tarihi 02-05-2014
Cilt / Sayı / Sayfa 112 / 17 / – DOI 10.1103/PhysRevLett.112.171802
Makale Linki http://link.aps.org/pdf/10.1103/PhysRevLett.112.171802
UAK Araştırma Alanları
Yüksek Enerji ve Parçacık Fiziği
Özet
A search for flavor-changing neutral currents in top-quark decays t -> Zq is performed in events produced from the decay chain (tt) over bar -> Zq + Wb, where both vector bosons decay leptonically, producing a final state with three leptons (electrons or muons). A data set collected with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at a center-of-mass energy of 8 TeV. No excess is seen in the observed number of events relative to the standard model prediction; thus, no evidence for flavor-changing neutral currents in top-quark decays is found. A combination with a previous search at 7 TeV excludes a t. Zq branching fraction greater than 0.05% at the 95% confidence level.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 96
Scopus 89
Google Scholar 3
Search for Flavor Changing Neutral Currents in Top Quark Decays t Zqin pp Collisions at root s 8 TeV