Absolute mass of neutrinos and the first unique forbidden {beta} decay of {sup 187}Re

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.045502· OSTI ID:21499624

Dvornicky, Rastislav; Simkovic, Fedor ^[1]; Muto, Kazuo ^[2]; Faessler, Amand ^[3]

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1. Department of Nuclear Physics and Biophysics, Comenius University, Mlynska dolina F1, SK-842 15 Bratislava (Slovakia)
2. Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551 (Japan)
3. Institute fuer Theoretische Physik der Universitaet Tuebingen, D-72076 Tuebingen (Germany)

The planned rhenium {beta}-decay experiment, called the ''Microcalorimeter Arrays for a Rhenium Experiment'' (MARE), might probe the absolute mass scale of neutrinos with the same sensitivity as the Karlsruhe tritium neutrino mass (KATRIN) experiment, which will take commissioning data in 2011 and will proceed for 5 years. We present the energy distribution of emitted electrons for the first unique forbidden {beta} decay of {sup 187}Re. It is found that the p-wave emission of electron dominates over the s wave. By assuming mixing of three neutrinos, the Kurie function for the rhenium {beta} decay is derived. It is shown that the Kurie plot near the end point is within a good accuracy linear in the limit of massless neutrinos like the Kurie plot of the superallowed {beta} decay of {sup 3}H.

• OSTI ID: 21499624
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevC.83.045502; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
BETA DECAY
CALORIMETERS
ELECTRONS
EMISSION
ENERGY SPECTRA
FERMI PLOT
MASS
MIXING
NEUTRINOS
P WAVES
RHENIUM 187
S WAVES
SENSITIVITY
TRITIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FERMIONS
HEAVY NUCLEI
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
MEASURING INSTRUMENTS
NUCLEAR DECAY
NUCLEI
ODD-EVEN NUCLEI
PARTIAL WAVES
RADIOISOTOPES
RHENIUM ISOTOPES
SPECTRA
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES