Gamow-Teller decay of the T=1 nucleus {sup 46}Cr
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo (Japan)
- Institut fuer Kernphysik der Universitaet zu Koeln, D-50937 Cologne (Germany)
- Institute of Physical and Chemical Research (RIKEN), Hirosawa 2-1, Wako-shi, 351-0198 (Japan)
- Department of Physics, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima, Tokyo (Japan)
- Department of Physics, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro, Tokyo (Japan); and others
The Gamow-Teller {beta} decay of {sup 46}Cr to the N=Z odd-odd nucleus {sup 46}V has been observed for the first time. {sup 46}Cr was produced by the fragmentation of a {sup 50}Cr primary beam at 80 MeV/nucleon. By means of {beta}-{gamma} coincidence measurements, a {gamma}-ray peak at 993 keV corresponding to the decay of the 1{sub 1}{sup +} state in {sup 46}V was observed. The branching ratio of the Gamow-Teller decay to this state was found to be b{sub GT}=0.216{+-}0.050. The half-life of {sup 46}Cr was measured to be T{sub 1/2}=240{+-}140 ms. The transition strength was determined to be B(GT)=0.64{+-}0.20. This result was compared with theoretical values calculated with the shell model and the phenomenological quasideuteron model.
- OSTI ID:
- 20698895
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevC.72.024308; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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