Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons 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 (2020)
Makale Dili İngilizce Basım Tarihi 03-2020
Kabul Tarihi 20-02-2020 Yayınlanma Tarihi 11-03-2020
Cilt / Sayı / Sayfa 2020 / 3 / 65–0 DOI 10.1007/JHEP03(2020)065
Makale Linki https://hdl.handle.net/11384/83146
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125 GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at 13 TeV is used, corresponding to an integrated luminosity of 35.9 fb . No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh . The observed upper limit at 95% confidence level ranges from 27 to 5 fb for A boson masses from 220 to 400 GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.
Anahtar Kelimeler
Hadron-Hadron scattering (experiments) | Higgs physics