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Neutrinoless double-electron capture

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Kotila, J.-M., Barea, J. L., & Iachello, F. (2014). Neutrinoless double-electron capture. Physical Review C - Nuclear Physics, 89 (6), 064319. doi:10.1103/PhysRevC.89.064319
Published in
Physical Review C - Nuclear Physics
Authors
Kotila, Jenni-Mari |
Barea, José L. |
Iachello, Francesco
Date
2014
Discipline
Fysiikka
Copyright
© 2014 American Physical Society. Published in this repository with the kind permission of the publisher.

 
Direct determination of the neutrino mass is at the present time one of the most important aims of experimental and theoretical research in nuclear and particle physics. A possible way of detection is through neutrinoless double-electron capture, 0νECEC. This process can only occur when the energy of the initial state matches precisely that of the final state. We present here a calculation of prefactors (PFs) and nuclear matrix elements (NMEs) within the framework of the microscopic interacting boson model (IBM-2) for 124Xe, 152Gd, 156Dy, 164Er, and 180W. From the PF and NME we calculate the expected half-lives and obtain results that are of the same order as those of 0νβ+β+ decay, but considerably longer than those of 0νβ−β− decay.
Publisher
American Physical Society
ISSN Search the Publication Forum
1089-490X
Keywords
neutrinoless double-electron capture
DOI
10.1103/PhysRevC.89.064319
URI

http://urn.fi/URN:NBN:fi:jyu-201602011363

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