Published September 18, 2009
| Version v1
Journal article
Q Value of 115In→115Sn(3/2+): The Lowest Known Energy β Decay
- 1. Department of Physics, Florida State University, Tallahassee, Florida 32306-4350 (United States)
Description
Using precision, cryogenic, Penning-trap mass spectrometry we have measured the atomic mass difference M[115In]-M[115Sn] to be 497.489(10) keV/c2. Combined with the energy of the 3/2+ first excited state of 115Sn[J. Blachot, Nuclear Data Sheets 104, 967 (2005)], the Q value of the 115In(9/2+)→115Sn(3/2+) beta decay is determined to be 155(24) eV. This confirms the inference of Cattadori et al.[Nucl. Phys. A 748, 333 (2005)] that this small branching-ratio beta decay has the lowest-known Q value. We also report improved values of the individual atomic masses: M[115In]=114.903 878 774(16) u and M[115Sn]=114.903 344 697(17) u.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 103
- Journal Issue
- 12
- Journal Page Range
- p. 122502-122502.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41101130
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- BETA DECAY; BRANCHING RATIO; EXCITED STATES; INDIUM 115; MASS DIFFERENCE; MASS SPECTROSCOPY; Q-VALUE; TIN 115
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DECAY; DIMENSIONLESS NUMBERS; ENERGY; ENERGY LEVELS; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INDIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NUCLEAR DECAY; NUCLEI; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; RADIOISOTOPES; SPECTROSCOPY; STABLE ISOTOPES; TIN ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- (c) 2009 The American Physical Society