Report/Journal Article

PUBDB-2017-07022

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Baryon asymmetry and neutrino mixing

Buchmuller, W.DESY* ; Plumacher, M.

1996
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: doi:10.1016/S0370-2693(96)01232-4

Report No.: DESY-96-158; hep-ph/9608308

Abstract: In theories where B - L is a spontaneously broken local symmetry, the cosmological baryon asymmetry can be generated by the out-of-equilibrium decay of heavy Majorana neutrinos. We study this mechanism assuming a similar pattern of mixing and masses for leptons and quarks, as suggested by SO(10) unification. This implies that B - L is broken at the unification scale Λ GUT ∼ 10 16 GeV, if m ν μ ∼ 3 · 10 −3 eV as preferred by the MSW explanation of the solar neutrino deficit. The observed value of the baryon asymmetry, n B s ∼ 10 −10 , is then obtained without any fine tuning of parameters.

Keyword(s): baryon: asymmetry ; B-L number: violation ; neutrino: Majorana ; neutrino: decay ; lepton: mass ; quark: mass ; fermion: interference ; neutrino: interference ; grand unified theory: SO(10) ; neutrino: mass ; numerical calculations

Note: F-Bereich; Theorie

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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