Search for a low-mass pseudoscalar Higgs boson produced in association with a bb‾ pair in pp collisions at √s=8 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
Dergi ISSN 0370-2693 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 07-2016
Cilt / Sayı / Sayfa 758 / 1 / 296–320 DOI 10.1016/j.physletb.2016.05.003
Makale Linki https://www.sciencedirect.com/science/article/am/pii/S0370269316301502?via%3Dihub
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a b b‾ pair, in the context of two-Higgs-doublet models. The results are based on pp collision data at a centre-of-mass energy of 8 TeV collected by the CMS experiment at the LHC and corresponding to an integrated luminosity of 19.7 fb− 1. Pseudoscalar boson masses between 25 and 80 GeV are probed. No evidence for a pseudoscalar boson is found and upper limits are set on the product of cross section and branching fraction to τ pairs between 7 and 39 pb at the 95% confidence level. This excludes pseudoscalar A bosons with masses between 25 and 80 GeV, with SM-like Higgs boson negative couplings to down-type fermions, produced in association with b b‾ pairs, in Type II, two-Higgs-doublet models.
Anahtar Kelimeler
CMS | Higgs | Physics