Constraints from nucleosynthesis and SN 1987A on Majoron-emitting double β decay

Details Constraints from nucleosynthesis and SN 1987A on Majoron-emitting double β decay Constraints from nucleosynthesis and SN 1987A on Majoron-emitting double β decay

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvd..49...12c&link_type=abstract

Physical Review D (Particles and Fields), Volume 49, Issue 1, 1 January 1994, pp.R12-R15

Physics

37

Elementary Particle Processes, Non-Standard-Model Higgs Bosons, Weak-Interaction And Lepton Aspects, Origin, Formation, And Abundances Of The Elements

Scientific paper

We examine whether observable Majoron emission in double β decay can be compatible with big-bang nucleosynthesis (NS) and the observed neutrino flux from SN 1987A. It is found that the NS upper bound on 4He abundance implies that the Majoron-neutrino Yukawa coupling constant g<=9×10-6 and its maximal value is allowed only when the scalar quartic coupling constant λ is extremely small, λ<=100g2. It is also observed that, although quite less restrictive, SN 1987A also provides independent constraints on coupling constants.

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