Measurement of inclusive and differential cross sections of single top quark production in association with a W boson in proton-proton collisions at √s=13.6 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of High Energy Physics (Q1)
Dergi ISSN 1029-8479 Dergi Bilgileri (2025)
Makale Dili İngilizce Basım Tarihi 01-2025
Kabul Tarihi 09-12-2024 Yayınlanma Tarihi 21-01-2025
Cilt / Sayı / Sayfa 2025 / 1 / – DOI 10.1007/JHEP01(2025)107
Makale Linki https://doi.org/10.1007/jhep01(2025)107
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The first measurement of the inclusive and normalised differential cross sections of single top quark production in association with a W boson in proton-proton collisions at a centre-of-mass energy of 13.6 TeV is presented. The data were recorded with the CMS detector at the LHC in 2022, and correspond to an integrated luminosity of 34.7 fb−1. The analysed events contain one muon and one electron in the final state. For the inclusive measurement, multivariate discriminants exploiting the kinematic properties of the events are used to separate the signal from the dominant top quark-antiquark production background. A cross section of 82.3±2.1stat−9.7+9.9syst±3.3lumi pb is obtained, consistent with the predictions of the standard model. A fiducial region is defined according to the detector acceptance to perform the differential measurements. The resulting differential distributions are unfolded to particle level and show good agreement with the predictions at next-to-leading order in perturbative quantum chromodynamics.
Anahtar Kelimeler
Hadron-Hadron Scattering | Top Physics