Search for Exotic Higgs Boson Decays H → AA → 4γ with Events Containing Two Merged Diphotons in Proton-Proton Collisions at Vs=13 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 Physical Review Letters (Q1)
Dergi ISSN 0031-9007 Dergi Bilgileri (2023)
Makale Dili İngilizce Basım Tarihi 09-2023
Cilt / Sayı / Sayfa 131 / 10 / 101801–0 DOI 10.1103/PhysRevLett.131.101801
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-85172288800&partnerID=MN8TOARS
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The first observation of the production of W+W+ bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 138 fb− 1 recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign W bosons decaying leptonically is 80.7+ 11.2 (stat)+ 9.5− 8.6 (syst)+ 12.1 (model) fb, whereas the measured fiducial cross section is 6.28+ 0.81 (stat)+ 0.69 (syst)+ 0.37 (model) fb. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis.
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