Spins of the levels and multipole mixing ratios of transitions in $sup 125$Sb determined from $gamma$--$gamma$ directional correlation and polarization--directional correlation measurements
In order to resolve several discrepancies in spin assignments to levels in /sup 125/Sb, directional correlations and polarizationdirectional correlations were measured for several gamma -- gamma cascades in /sup 125/Sb populated from the decay of /sup 125/Sn. Earlier results obtained from using NaI and Ge(Li) and NaI detectors were difficult to interpret due to the complex structure of the decay scheme. To improve the experimental situation, two coaxial Ge(Li) detectors were used for the angular correlation measurements and a coaxial Ge(Li)- planar Ge(Li) combination for the polarization-directional correlations. Combination of the results of these measurements give unique spin assignments of 11/2-, 11/2-, and 1067 keV levels, respectively. The determined E2/M1 mixing ratios are: delta (470) = 0.010 plus or minus 0.027, delta (1067) = --0.88 plus or minus 0.18, and delta (916) = --0.02 plus or minus 0.01. (auth)
- Research Organization:
- Purdue Univ., Lafayette, IN
- NSA Number:
- NSA-29-028287
- OSTI ID:
- 4316174
- Journal Information:
- Nucl. Phys., A, v. A219, no. 2, pp. 370-380, Journal Name: Nucl. Phys., A, v. A219, no. 2, pp. 370-380; ISSN NUPAB
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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*TIN 125-- BETA-MINUS DECAY
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
ELECTRIC MOMENTS
ENERGY-LEVEL TRANSITIONS
GAMMA SPECTRA
MAGNETIC DIPOLE MOMENTS
MIXING RATIO
MULTIPOLES
N68731* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Energy Levels & Transitions
NUCLEAR CASCADES
PARITY
POLARIZATION
QUADRUPOLE MOMENTS
SPIN