Measurements of the t(t)Overbar charge asymmetry using the dilepton decay channel in pp collisions at √s=7 TeV
Yazarlar (1)
Makale Türü Açık Erişim Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Journal of High Energy Physics
Dergi ISSN 1126-6708
Makale Dili İngilizce Basım Tarihi 04-2014
Kabul Tarihi 04-04-2014 Yayınlanma Tarihi 01-04-2014
Cilt / Sayı / Sayfa 2014 / 4 / – DOI 10.1007/JHEP04(2014)191
Makale Linki https://link.springer.com/content/pdf/10.1007/JHEP04(2014)191.pdf
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The tt̄ charge asymmetry in proton-proton collisions at s = 7TeV is measured using the dilepton decay channel (ee, eμ, or μμ). The data correspond to a total integrated luminosity of 5.0 fb-1, collected by the CMS experiment at the LHC. The tt̄ and lepton charge asymmetries, defined as the differences in absolute values of the rapidities between the reconstructed top quarks and antiquarks and of the pseudorapidities between the positive and negative leptons, respectively, are measured to be AC = -0.010 ± 0.017 (stat.) ± 0.008 (syst.) and AC lep = 0.009 ± 0.010 (stat.) ± 0.006 (syst.). The lepton charge asymmetry is also measured as a function of the invariant mass, rapidity, and transverse momentum of the tt̄ system. All measurements are consistent with the expectations of the standard model.
Anahtar Kelimeler
Hadron-hadron scattering | Top physics
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 49
Scopus 31
Measurements of the t(t)Overbar charge asymmetry using the dilepton decay channel in pp collisions at √s=7 TeV

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