Repozitorij Univerze v Novi Gorici

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Naslov:Experimental bounds on sterile-active neutrino mixing angles
Avtorji:Petač, Mihael (Lastnik avtorskih pravic)
Petač, Mihael (Avtor)
Datoteke:.pdf document.pdf (1,93 MB)
 
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:2.09 - Magistrsko delo
Organizacija:UNG - Univerza v Novi Gorici
Opis:Despite the success of the Standard Model in the last few decades, we know it is not complete. There is strong motivation for assuming the existence of additional heavy neutral leptons, which can account for active neutrino masses and possibly also have cosmological implications. In this work I consider the Standard Model with two neutral lepton singlets (sterile neutrinos) with degenerated masses in the range 20MeV - 2GeV. The constraints on the active-sterile neutrino mixing angles are evaluated based on recent neutrino oscillations data. Using these constraints the bounds from accelerator experiments are reanalyzed for the case of the considered model. Finally, the results are compared with cosmological constraints coming from Big Bang nucleosynthesis and the nMSM resonant leptogenesis.
Ključne besede:Sterile neutrinos, Neutrino mixing, See-saw, High-Energy Physics - Phenomenology, High-Energy Physics - Experiments
Leto izida:2015
Št. strani:77
COBISS_ID:78843139 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:JMRKMN02
Število ogledov:674
Število prenosov:21
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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