Measurement of the differential t(t)over-bar production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks
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 European Physical Journal C (Q2)
Dergi ISSN 1434-6044 Dergi Bilgileri (2023)
Makale Dili İngilizce Basım Tarihi 07-2023
Cilt / Sayı / Sayfa 83 / 7 / 560–0 DOI 10.1140/epjc/s10052-023-11587-8
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-85182479382&partnerID=MN8TOARS
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton+ jets channel of top quark pair production (tt) events, where the lepton is an electron or muon. The products of the hadronic top quark decay are reconstructed using a single large-radius jet with transverse momentum greater than 400 GeV. The data were collected with the CMS detector at the LHC in protonproton collisions and correspond to an integrated luminosity of 138 fb− 1. The differential tt production cross section as a function of the jet mass is unfolded to the particle level and is used to extract the top quark mass. The jet mass scale is calibrated using the hadronic W boson decay within the large-radius jet. The uncertainties in the modelling of the final state radiation are reduced by studying angular correlations in the jet substructure. These developments …
Anahtar Kelimeler