Jirina Stone

Abstract:

The combined technique of gamma-ray linear polarization and directional distribution measurement from oriented nuclei (LPγON) has been applied to192Ir Fe. New polarization data are used to deduce values of mixing ratios in Β and γ transitions. © 1983 J.C. Baltzer Scientific Publishing Company.

Abstract:

The gamma-ray linear polarization data in combination with the results of the directional distribution measurements were used to determine precise values of the multipole mixing ratios of the gamma-transitions in the¹⁷²Yb nucleus. A detailed analysis of the deduced mixing ratios, supplemented by previous data, lends support to the following description of the two-quasiparticle excitations of¹⁹²Yb (see also tab. 6): 2073 keV K^π = (4⁺) {p 4041 ↓ + p 411 ↓} + {n 514↓ - n 521↓} 1663 keV K^π = (3⁺) {n 514↓ - n 521↓} + {n 512↑ - n 521↓} 1172 keV K^π = 3⁺ {n 512↑ + n 521↓} + {p404↓ - P 411↓} A supporting evidence has also been given to the spin-parity assignments of the 1640 keV (I^π = 4^-) and 1706 keV (I^π = 5^-) members of the K^π = 4^- band. © 1983 Academia, Publishing House of the Czechoslovak Academy of Sciences.