A 48 CaCO 3 powder sample containing 20.18 g of 48 Ca was measured for 797 h with a 400 cm 3 low-background HPGe detector. New limits on decays of 48 Ca were obtained. For single beta transitions to 48 Sc the limits are equal to 0.71 × 10 20 y, 1.1 × 10 20 y, and 0.82 × 10 20 y for transitions to th
✦ LIBER ✦
Search for β and ββ decays in 48Ca
✍ Scribed by R. Bernabei; P. Belli; F. Cappella; R. Cerulli; F. Montecchia; F. Nozzoli; A. Incicchitti; D. Prosperi; C.J. Dai; V.I. Tretyak; Yu.G. Zdesenko; O.A. Ponkratenko
- Book ID
- 104335470
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 172 KB
- Volume
- 705
- Category
- Article
- ISSN
- 0375-9474
No coin nor oath required. For personal study only.
✦ Synopsis
The coincidence technique can offer a useful way to investigate β and ββ decay processes in 48 Ca. In this paper the results of a preliminary experimental search are presented. In particular, here the first experimental limit on the half life of the ββ2ν(0 + -2 + ) decay of 48 Ca has been obtained; it is T 1/2 > 1.2 × 10 18 y (90% C.L.).
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