Measurement of the top quark pole mass using t(t)over-bar+jet events in the dilepton final state in proton-proton collisions at √s=13 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics (Q1) | ||
| Dergi ISSN | 1029-8479 Dergi Bilgileri (2023) | ||
| Makale Dili | İngilizce | Basım Tarihi | 07-2023 |
| Cilt / Sayı / Sayfa | 2023 / 7 / 1–56 | DOI | 10.1007/JHEP07(2023)077 |
| Makale Linki | https://epubs.stfc.ac.uk/work/55382838 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| A measurement of the top quark pole mass mpolet in events where a top quark-antiquark pair (tt¯) is produced in association with at least one additional jet (tt¯+jet) is presented. This analysis is performed using proton-proton collision data at s√ = 13 TeV collected by the CMS experiment at the CERN LHC, corresponding to a total integrated luminosity of 36.3 fb−1. Events with two opposite-sign leptons in the final state (e+e−, μ+μ−, e±μ∓) are analyzed. The reconstruction of the main observable and the event classification are optimized using multivariate analysis techniques based on machine learning. The production cross section is measured as a function of the inverse of the invariant mass of the tt¯+jet system at the parton level using a maximum likelihood unfolding. Given a reference parton distribution function (PDF), the top quark pole mass is extracted using the theoretical predictions at next-to-leading order. For the ABMP16NLO PDF, this results in mpolet = 172.93 ± 1.36 GeV. |
| Anahtar Kelimeler |
| Hadron-Hadron Scattering | Top Physics |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 6 |
| Scopus | 10 |