Search for heavy Majorana neutrinos in μ±μ± + jets events inproton-proton collisions at √s=8TeV
Yazarlar (1)
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q1) | ||
| Dergi ISSN | 0370-2693 Dergi Bilgileri (2015) | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2015 |
| 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
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| 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
Search for heavy Majorana neutrinos in μ±μ± + jets events inproton-proton collisions at √s=8TeV
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