Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at √s=13 TeV
Yazarlar (2)
CMS Collaboration
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q1)
Dergi ISSN 0370-2693 Dergi Bilgileri (2020)
Makale Dili İngilizce Basım Tarihi 01-2020
Kabul Tarihi Yayınlanma Tarihi 01-01-2020
Cilt / Sayı / Sayfa 800 / 1 / – DOI 10.1016/j.physletb.2019.135042
Makale Linki https://www.sciencedirect.com/science/article/am/pii/S0370269319307646?via%3Dihub
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb−1. Events with one muon or electron are selected, and different categories of jet and b jet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130±1(stat)±19(syst)pb and 77±1(stat)±12(syst)pb, respectively, and their ratio is 1.68±0.02(stat)±0.05(syst). The results are in agreement with the predictions from the standard model.
Anahtar Kelimeler
CMS | Cross section | Physics | Single top | Top quark