Limits on single and double Majoron emission processes in neutrinoless double beta decay of Mo-100 - INSPIRE

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Limits on single and double Majoron emission processes in neutrinoless double beta decay of Mo-100

J. Tanaka
(
- Osaka U.
)
,
H. Ejiri
(
- Osaka U.
)

1993

4 pages

Published in:

Phys.Rev.D 48 (1993) 5412-5415

DOI:

10.1103/PhysRevD.48.5412

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Abstract: (APS)

The single Majoron emission mode (ββB) and the double Majoron emission mode (ββBB) in the neutrinoless double β decays of Mo100 were studied by using the ultralow background nuclear spectrometer ELEGANTS V. Lower limits on the half-lives were deduced as T12ββB>7.9×1020 yr and T12ββBB>5.3×1019 yr (68% C.L.), respectively. They set the upper limit of |〈gB〉|<2.0×10−4 on the Majoron coupling constant, and the lower limit of MZ̃>0.038 GeV on the Majorana mass of the Z-ino.

double-beta decay: (0neutrino)
(0neutrino): double-beta decay
postulated particle: Majoron
molybdenum: lifetime
lower limit
postulated particle: Zino
mass: Zino
Zino: mass
coupling constant: upper limit
upper limit: coupling constant

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