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Constraints from nucleosynthesis and SN 1987A on Majoron-emitting double [beta] decay

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1];  [2]
  1. Department of Physics and Center for Theoretical Physics, Seoul National University, Seoul 151-742 (Korea, Republic of)
  2. Department of Physics, Chonbug National University, Chonju 560-756 (Korea, Republic of)
We examine whether observable Majoron emission in double [beta] 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 [sup 4]He abundance implies that the Majoron-neutrino Yukawa coupling constant [ital g][le]9[times]10[sup [minus]6] and its maximal value is allowed only when the scalar quartic coupling constant [lambda] is extremely small, [lambda][le]100[ital g][sup 2]. It is also observed that, although quite less restrictive, SN 1987A also provides independent constraints on coupling constants.
OSTI ID:
5408474
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:1; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English