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M1 transition strength from the 3/2$sup -$ isobaric state in $sup 49$Sc

Journal Article · · J. Phys. Soc. Jap., v. 35, no. 2, pp. 325-329
OSTI ID:4400356
;
Gamma rays from the strongest five of seven resonances associated with ine /sup 49/Ca ground-state analogue in the reaction /sup 49/Ca(p, gg) /sup 49/Sc have been measured. The B(Ml) for the gamma decay of the isobaric analogue state (IAS) to the 3032 keV anti-isobaric analogue state (AIAS) is found to be 1.2 x 10/ sup --2/ W.U., which is hindered by a factor of ~ 1.7 x 10/sup -2/ with respect to a simple shell model prediction. This hindrance has been found to be due to the fact that several levels at around 6.5 MeV, which presumably arise from the core-polarization configuration, absorb most of the M1 strength. The correspondence between the strength of the GamowTeller (GT) beta transition from the /sup 49/Ca g.s. to the 3052 keV state in /sup 49/Sc and the strength of the sigma -part of the M1 transition from the IAS to the AIAS is discussed. (auth)
Research Organization:
Tokyo Inst. of Tech.
NSA Number:
NSA-29-011439
OSTI ID:
4400356
Journal Information:
J. Phys. Soc. Jap., v. 35, no. 2, pp. 325-329, Journal Name: J. Phys. Soc. Jap., v. 35, no. 2, pp. 325-329; ISSN JUPSA
Country of Publication:
Japan
Language:
English

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