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Beta decay of /sup 21/F

Journal Article · · Phys. Rev., C; (United States)
/sup 21/F(..beta../sup -/)/sup 21/Ne is re-examined. ..beta.. branches are observed as follows (/sup 21/Ne E/sub x/ (keV), % ..beta.. branch): 0, 9.6(3.0); 351, 74.1(3.0); 1746, 16.1(1.0); 3736, 3.1(4) x 10/sup -3/; 3884, 4.0(4) x 10/sup -3/; 4525, 43(3) x 10/sup -3/; 4685, 77(5) x 10/sup -3/. The half-life was measured to be 4.158(20) s. Precision ..gamma..-ray measurements were made for the /sup 21/Ne 351..-->..0 and 1746..-->..351 transitions and the /sup 20/Ne 1634..-->..0 transition. Results for the ..gamma.. energies are 350.725(8), 1395.131(17), and 1633.602(15) keV. logft values are calculated. Comparisons of the present results are made to the shell-model calculations of Lanford and Wildenthal and to the analog ..beta../sup +/ decay of /sup 21/Mg to /sup 21/Na. It is concluded that uncalculated Coulomb effects are a major block to the sensitivity of such comparisons.
Research Organization:
Brookhaven National Laboratory, Upton, New York 11973
OSTI ID:
6901143
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 23:3; ISSN PRVCA
Country of Publication:
United States
Language:
English