https://doi.org/10.1007/s10050-000-4512-z
Short note
New investigation of the decay of the high-spin isomer in 151Er
1
Institut des Sciences Nucléaires, IN2P3-CNRS/Université Joseph Fourier, 38026, Grenoble Cedex, France
2
CSNSM, IN2P3-CNRS, Bt.104, 91405, Campus Orsay, France
3
Horia Hulubei National Institute of Physics, 76900, Bucharest, Romania
4
Institute of Experimental Physics, 00-681, Warsaw, Poland
* e-mail: foin@isn.in2p3.fr
Received:
22
June
2000
Revised:
18
July
2000
Published online: 11 September 2013
The decay of the T 1/2 = 420 ns isomer in 151Er has been reinvestigated. The multipolarities of the decaying transitions have been established by measuring the electron conversion coefficients. An I π = 67/2− assignment is proposed for this isomer with a π[h 11 2/4 d 3 2/1 d 5 2/−1 ]⊗ν[f 7/2 h 9/2 h 11 2/−1 ] configuration.
PACS: 21.10.Pc Single-particle levels – / 23.20.Lv Gamma transitions and level energies – / 23.20.Nx Internal conversion and extranuclear effects – / 27.70.+q 150≤A≤189 –
© Società Italiana di Fisica and Springer-Verlag, 2000
