Search for heavy Majorana neutrinos in μ±μ± + jets events in proton-proton 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 07-2015
Cilt / Sayı / Sayfa 748 / 1 / 144–166 DOI 10.1016/j.physletb.2015.06.070
Makale Linki https://doi.org/10.1016/j.physletb.2015.06.070
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two muons of the same charge and two jets (μ±μ±jj). The data correspond to an integrated luminosity of 19.7 fb− 1 of proton–proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS detector at the CERN LHC. No excess of events is observed beyond the expected standard model background and upper limits are set on| V μ N| 2 as a function of Majorana neutrino mass m N for masses in the range of 40–500 GeV, where V μ N is the mixing element of the heavy neutrino with the standard model muon neutrino. The limits obtained are| V μ N| 2< 0.00470 for m N= 90 GeV,| V μ N| 2< 0.0123 for m N= 200 GeV, and| V μ N| 2< 0.583 for m N= 500 GeV. These results extend considerably the regions excluded by previous direct searches.
Anahtar Kelimeler
CMS | Heavy neutrino | Physics
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Scopus 63
Scopus 110
Google Scholar 429
Search for heavy Majorana neutrinos in μ±μ± + jets events in proton-proton collisions at s=8 TeV

Paylaş