Determination of the spin of 31Ar
PHYSICS LETTERS B（1999）
摘要
The beta-delayed proton emission from the lightest Ar-isotopes has been recorded with a high-granularity, large solid-angle Si-detector set-up. Proton energy shifts due to beta-recoil have been measured. We demonstrate how this allows the spin of Ar-31 to be determined as 5/2. The method can be applied at decay rates as low as 1 s(-1). (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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关键词
Ar-31,Ar-32,Ar-33(beta p),measured E-p(theta(beta p)),deduced angular-correlation parameters,nuclear spin J
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