Limits on single and double Majoron emission processes in neutrinoless double [beta] decay of [sup 100]Mo

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.5412· OSTI ID:5802453

Tanaka, J; Ejiri, H ^[1]

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1. Laboratory of Nuclear Studies and Department of Physics, Osaka University, Toyonaka, Osaka 560 (Japan)

The single Majoron emission mode ([beta][beta][ital B]) and the double Majoron emission mode ([beta][beta][ital BB]) in the neutrinoless double [beta] decays of [sup 100]Mo were studied by using the ultralow background nuclear spectrometer ELEGANTS V. Lower limits on the half-lives were deduced as [ital T][sub 1/2][sup [beta][beta][ital B]][gt]7.9[times]10[sup 20] yr and [ital T][sub 1/2][sup [beta][beta][ital B][ital B]][gt]5.3[times]10[sup 19] yr (68%) CL, respectively. They set the upper limit of [vert bar][l angle][ital g][sub [ital B]][r angle][vert bar][lt]2.0[times]10[sup [minus]4] on the Majoron coupling constant, and the lower limit of [ital M][sub [ital [tilde Z]]][gt]0.038 GeV on the Majorana mass of the [ital Z]-ino.

• OSTI ID: 5802453
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:11; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA-MINUS DECAY
BOSONS
COUPLING CONSTANTS
DECAY
DOUBLE BETA DECAY
ELEMENTARY PARTICLES
EMISSION
EVEN-EVEN NUCLEI
FERMIONS
GOLDSTONE BOSONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEPTONS
LIMITING VALUES
MAJORANA THEORY
MASSLESS PARTICLES
MEASURING INSTRUMENTS
MOLYBDENUM 100
MOLYBDENUM ISOTOPES
NEUTRINOS
NUCLEAR DECAY
NUCLEI
POSTULATED PARTICLES
SPECTROMETERS
STABLE ISOTOPES
SYMMETRY BREAKING