ISSN:
1434-601X
Keywords:
PACS: 21.10.Re Collective levels – 23.20.Lv Gamma transitions and level energies – 21.60.Ev Collective models – 27.60.+j 90 ≤ A ≤ 149
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: High spin states of 126La have been populated using the reaction 116Sn+14N at 68 MeV. γ-rays and conversion electrons were detected with the GAREL array. Multipolarities of the lowest-lying in-band dipole transitions have been determined from the deduced internal conversion coefficients. Experimental B(M1)/B(E2) ratios have been derived for the bands and compared with calculated values using the Dönau-Frauendorf geometrical model. Configurations are proposed for the bands comparing them with cranked shell model calculations and on the basis of the measured B(M1)/B(E2) ratios. The β-decay of 126La has also been revisited. The population of the 126Ba levels gives a probable spin value of five for the decaying high-spin 126La state with T 1/2≈ 64 s which may indicate a signature inversion in the πh11/2νh11/2 band.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100500050002
Permalink
