Measurement of top quark pair production in association with a Z boson in proton-proton collisions at √s = 13 TeV
Journal of High Energy Physics, cilt.2020, sa.3, 2020 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2020 Sayı: 3
- Basım Tarihi: 2020
- Doi Numarası: 10.1007/jhep03(2020)056
- Dergi Adı: Journal of High Energy Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, INSPEC, zbMATH, Directory of Open Access Journals
- Anahtar Kelimeler: Hadron-Hadron scattering (experiments), Top physics, HELICITY FRACTIONS, CROSS-SECTION, ROOT-S=8, JETS, PLUS
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Erzincan Binali Yıldırım Üniversitesi Adresli: Evet
Özet
A measurement of the inclusive cross section of top quark pair production in association with a Z boson using proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC is performed. The data sample corresponds to an integrated luminosity of 77.5 fb(-1), collected by the CMS experiment during 2016 and 2017. The measurement is performed using final states containing three or four charged leptons (electrons or muons), and the Z boson is detected through its decay to an oppositely charged lepton pair. The production cross section is measured to be sigma (tt