Measurement of the differential cross section for top quark pair production in pp collisions at √s=8 TeV
European Physical Journal C, cilt.75, sa.11, ss.1-39, 2015 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 75 Sayı: 11
- Basım Tarihi: 2015
- Doi Numarası: 10.1140/epjc/s10052-015-3709-x
- Dergi Adı: European Physical Journal C
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1-39
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Erzincan Binali Yıldırım Üniversitesi Adresli: Evet
Özet
© 2015, CERN for the benefit of the CMS collaboration.The normalized differential cross section for top quark pair (tt¯) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb-1. The measurements are performed in the lepton+jets (e/μ++jets) and in the dilepton e+e-, μ+μ-, and e±μ∓) decay channels. The tt¯ cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the tt¯ system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.