QEC value of the superallowed β emitter 42Sc
Eronen, T., Hardy, J. C., Canete, L., Jokinen, A., Hakala, J., Kankainen, A., Kolhinen, V., Koponen, J., Moore, I., Murray, I. M., Penttilä, H., Pohjalainen, I., Poleshchuk, O., Reinikainen, J., Rinta-Antila, S., Soukouti, N., Voss, A., & Äystö, J. (2017). QEC value of the superallowed β emitter 42Sc. Physical Review C, 95(2), Article 025501. https://doi.org/10.1103/PhysRevC.95.025501
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Physical Review CDate
2017Copyright
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
The QEC value of the superallowed β+ emitter Sc42 has been measured with the JYFLTRAP Penning-trap mass spectrometer at the University of Jyväskylä to be 6426.350(53) keV. This result is at least a factor of four more precise than all previous measurements, which were also inconsistent with one another. As a byproduct we determine the excitation energy of the 7+ isomeric state in Sc42 to be 616.762(46) keV, which deviates by 8σ from the previous measurement.
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This material is based on work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics, under Award Number DE-FG03-93ER40773, by the Welch Foundation under Grant No. A-1397, and by the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL). A.K. and L.C. acknowledge the support from the ...
