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Search for β− and β−β− decays of 48Ca

✍ Scribed by A. Bakalyarov; A. Balysh; A. Barabash; Ch. Briançon; V. Brudanin; V. Egorov; F. Hubert; Ph. Hubert; A. Kovalik; V.I. Lebedev; N.I. Rukhadze; I. Štekl; V. Umatov; Ts. Vylov

Book ID
104335090
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
114 KB
Volume
700
Category
Article
ISSN
0375-9474

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✦ Synopsis

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 the ground state, excited 5 + and 4 + states, respectively. The new limits on double beta decay to excited states of 48 Ti are equal to 0.47 × 10 20 y, 1.1 × 10 20 y, and 0.90 × 10 20 y for transitions to the first 2 + , second 2 + and first 0 + excited states, respectively. All limits are given at the 90% CL.

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