Double-beta-decay Q values of {sup 74}Se and {sup 76}Ge

Journal Article · Mon Mar 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.032501· OSTI ID:21388880

Mount, Brianna J; Redshaw, Matthew; Myers, Edmund G ^[1]

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1. Department of Physics, Florida State University, Tallahassee, Florida 32306-4350 (United States)

The atomic masses of {sup 74}Ge, {sup 74}Se, {sup 76}Ge, and {sup 76}Se 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 {sup 74}Se to be 1209.240(7) keV, and the Q value for double-electron emission of {sup 76}Ge to be 2039.061(7) keV. The new Q{sub 2EC} value for {sup 74}Se precludes a large resonant enhancement for neutrinoless double-electron capture.

• OSTI ID: 21388880
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 81; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA-MINUS DECAY
CAPTURE
CHARGED PARTICLES
CYCLOTRON FREQUENCY
DECAY
DOUBLE BETA DECAY
ELECTRON CAPTURE
ELECTRON EMISSION
EMISSION
ENERGY
ENERGY RANGE
EVEN-EVEN NUCLEI
GERMANIUM 74
GERMANIUM 76
GERMANIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
IONS
ISOTOPES
MASS
MASS DIFFERENCE
MEV RANGE
MEV RANGE 01-10
NUCLEAR DECAY
NUCLEI
PARTICLE PROPERTIES
Q-VALUE
SELENIUM 74
SELENIUM 76
SELENIUM ISOTOPES
STABLE ISOTOPES
TRAPS