Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton–proton collisions at ?s=13TeV
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute for Ionics
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The mass of the top quark is measured in 36.3 fb-1 of LHC proton–proton collision data collected with the CMS detector at s=13TeV . The measurement uses a sample of top quark pair candidate events containing one isolated electron or muon and at least four jets in the final state. For each event, the mass is reconstructed from a kinematic fit of the decay products to a top quark pair hypothesis. A profile likelihood method is applied using up to four observables per event to extract the top quark mass. The top quark mass is measured to be 171.77±0.37GeV . This approach significantly improves the precision over previous measurements. © 2023, The Author(s).
Açıklama
Anahtar Kelimeler
CMS detectors, Decay products, Final state, Likelihood methods, Measurements of, Profile likelihood, Proton proton collisions, Quark mass, Top quarks, Elementary particles
Kaynak
European Physical Journal C
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
83
Sayı
10
