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High-precision measurement of the mass difference between 102Pd and 102Ru
- Source :
- International Journal of Mass Spectrometry. 435:204-208
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- The Q-value for the neutrinoless double electron capture on 102Pd, Qϵϵ(102Pd), is determined as the atomic mass difference between 102Pd and 102Ru. A precise measurement of the Qϵϵ(102Pd) at the SHIPTRAP Penning trap showed a more than 10σ deviation to the adopted Atomic Mass Evaluation (AME) value. The reliability of the SHIPTRAP measurement was challenged because the AME value was based on numerous experiments including β and electron capture decays and very precise (n, γ) data, all agreeing with each other. To solve the discrepancy, the Qϵϵ(102Pd) has now been determined with the JYFLTRAP Penning trap at the IGISOL facility in the Accelerator Laboratory of the University of Jyvaskyla. The measurement was performed both with the Time-of-Flight and the Phase-Imaging Ion Cyclotron Resonance techniques. The obtained result, Qϵϵ(102Pd) = 1203.472(45) keV, is eight times more precise and agrees well with the value obtained at SHIPTRAP, Qϵϵ(102Pd) = 1203.27(36) keV, confirming that 102Pd is not a good candidate for a search for neutrinoless double-electron capture.
- Subjects :
- ta114
010308 nuclear & particles physics
Chemistry
Electron capture
neutrinoless double-electron capture
penning trap
Q-values
Condensed Matter Physics
Penning trap
01 natural sciences
Atomic mass
Nuclear physics
0103 physical sciences
Physical and Theoretical Chemistry
ydinfysiikka
010306 general physics
high-precision mass spectrometry
Instrumentation
Spectroscopy
Reliability (statistics)
Ion cyclotron resonance
Subjects
Details
- ISSN :
- 13873806
- Volume :
- 435
- Database :
- OpenAIRE
- Journal :
- International Journal of Mass Spectrometry
- Accession number :
- edsair.doi.dedup.....7f7542dd5a546b11fc80b0d3f95f3bd3
- Full Text :
- https://doi.org/10.1016/j.ijms.2018.10.038