Search for a new resonance decaying into two spin-0 bosons in a final state with two photons and two bottom quarks in proton-proton collisions at √s=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 Journal of High Energy Physics (Q1)
Dergi ISSN 1029-8479 Dergi Bilgileri (2024)
Makale Dili İngilizce Basım Tarihi 05-2024
Cilt / Sayı / Sayfa 2024 / 5 / 316–0 DOI 10.1007/JHEP05(2024)316
Makale Linki https://epubs.stfc.ac.uk/work/58873960
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
Abstract A search for a new boson X is presented using CERN LHC proton-proton collision data collected by the CMS experiment at = 13 TeV in 2016–2018, and corresponding to an integrated luminosity of 138 fb −1. The resonance X decays into either a pair of Higgs bosons HH of mass 125 GeV or an H and a new spin-0 boson Y. One H subsequently decays to a pair of photons, and the second H or Y, to a pair of bottom quarks. The explored mass ranges of X are 260–1000 GeV and 300–1000 GeV, for decays to HH and to HY, respectively, with the Y mass range being 90–800 GeV. For a spin-0 X hypothesis, the 95% confidence level upper limit on the product of its production cross section and decay branching fraction is observed to be within 0.90–0.04 fb, depending on the masses of X and Y. The largest deviation from the background-only hypothesis with a local (global) significance of 3.8 (below 2.8 …
Anahtar Kelimeler
B Physics | Hadron-Hadron Scattering | Higgs Physics | Photon Production