Published March 2010
| Version v1
Journal article
Double-β-decay Q values of 74Se and 76Ge
- 1. Department of Physics, Florida State University, Tallahassee, Florida 32306-4350 (United States)
Description
The atomic masses of 74Ge, 74Se, 76Ge, and 76Se have been determined from cyclotron frequency ratios of pairs of ions simultaneously trapped in a cryogenic Penning trap. Allowing for cancellation of systematic errors in the mass differences between isobars, we determine the Q value for double-electron capture of 74Se to be 1209.240(7) keV, and the Q value for double-electron emission of 76Ge to be 2039.061(7) keV. The new Q2EC value for 74Se precludes a large resonant enhancement for neutrinoless double-electron capture.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 81
- Journal Issue
- 3
- Journal Page Range
- p. 032501-032501.4
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41117623
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CYCLOTRON FREQUENCY; DOUBLE BETA DECAY; ELECTRON CAPTURE; ELECTRON EMISSION; GERMANIUM 74; GERMANIUM 76; IONS; MASS; MASS DIFFERENCE; MEV RANGE 01-10; Q-VALUE; SELENIUM 74; SELENIUM 76; TRAPS
- Descriptors DEC
- BETA DECAY; BETA-MINUS DECAY; CAPTURE; CHARGED PARTICLES; DECAY; EMISSION; ENERGY; ENERGY RANGE; EVEN-EVEN NUCLEI; GERMANIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; ISOTOPES; MEV RANGE; NUCLEAR DECAY; NUCLEI; PARTICLE PROPERTIES; SELENIUM ISOTOPES; STABLE ISOTOPES
Optional Information
- Notes
- (c) 2010 The American Physical Society