Measurement of the cross section for t(t)over-bar production with additional jets and b jets in pp collisions at √s=13TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(ESCI dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics | ||
| Dergi ISSN | 1126-6708 | ||
| Makale Dili | İngilizce | Basım Tarihi | 07-2020 |
| Cilt / Sayı / Sayfa | 2020 / 7 / – | DOI | 10.1007/JHEP07(2020)125 |
| Makale Linki | https://hdl.handle.net/11384/149609 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks () and in association with a pair of jets from quarks of any flavor or gluons () and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately in the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results for the dilepton and lepton+jets channels, respectively, are = 2.36 0.02 (stat) 0.20 (syst) pb and 31.0 0.2 (stat) 2.9 (syst) pb, and for the cross section ratio 0.017 0.001 (stat) 0.001 (syst) and 0.020 0.001 (stat) 0.001 (syst). The values of are determined from the product of the and the cross section ratio, obtaining, respectively, 0.040 0.002 (stat) 0.005 (syst) pb and 0.62 0.03 (stat) 0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower. |
| Anahtar Kelimeler |
| Hadron-Hadron scattering (experiments) | Jets | Top physics |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 20 |
| Scopus | 44 |
| Google Scholar | 166 |