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Phys. Rev. C 58, 1247–1256 (1998)

Electron capture decay of 116In and nuclear structure of double β decays

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M. Bhattacharya1, A. García1, M. M. Hindi2, E. B. Norman3, C. E. Ortiz1, N. I. Kaloskamis1,*, C. N. Davids4, O. Civitarese5, and J. Suhonen6
1University of Notre Dame, Notre Dame, Indiana 46556
2Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505
3Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
4Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
5Department of Physics, University of La Plata, C. C. 67, 1900-La Plata, Argentina
6Department of Physics, University of Jyväskylä, P.O. Box 35, SF-40351, Jyväskylä, Finland

Received 27 March 1998; published in the issue dated August 1998

Quasiparticle-random-phase-approximation (QRPA) calculations of double β decays have not been able to reproduce data in the A=100 system. We propose the A=116 system—because of its smaller deformation—as a simpler system to test QRPA calculations. We present results of two experiments we performed, which determine the electron-capture-decay branch of 116In to be (2.27±0.63)×10-2%, from which we deduce logft=4.39-0.15+0.10. We present QRPA calculations and compare their predictions to experimental data. Finally we use these calculations to predict the 2ν double-β-decay rate of 116Cd to the ground and excited states of 116Sn.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.58.1247
DOI:
10.1103/PhysRevC.58.1247
PACS:
27.60.+j, 21.10.Re, 25.40.Lw, 23.40.-s

*Present address: MIT-Bates Linear Accelerator Center, Middleton, MA 01949.

 
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