Evidence for four-top quark production 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 | Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q1) | ||
| Dergi ISSN | 0370-2693 Dergi Bilgileri (2023) | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2023 |
| Cilt / Sayı / Sayfa | 844 / 1 / 138076–0 | DOI | 10.1016/j.physletb.2023.138076 |
| Makale Linki | https://doi.org/10.1016/j.physletb.2023.138076 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The production of four top quarks (t t¯ t t¯) is studied with LHC proton-proton collision data samples collected by the CMS experiment at a center-of-mass energy of 13 TeV, and corresponding to integrated luminosities of up to 138 fb− 1. Events that have no leptons (all-hadronic), one lepton, or two opposite-sign leptons (where lepton refers only to prompt electrons or prompt muons) are considered. This is the first t t¯ t t¯ measurement that includes the all-hadronic final state. The observed significance of the t t¯ t t¯ signal in these final states of 3.9 standard deviations (1.5 expected) provides evidence for t t¯ t t¯ production, with a measured cross section of 36− 11+ 12 fb. Combined with earlier CMS results in other final states, the signal significance is 4.0 standard deviations (3.2 expected). The combination returns an observed cross section of 17±4 (stat)±3 (syst) fb, which is consistent with the standard model prediction. |
| Anahtar Kelimeler |
| CMS | Top quark |
Science Direct
Evidence for four-top quark production in proton-proton collisions at √s=13 TeV
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 14 |
| Scopus | 23 |
| Google Scholar | 74 |