A new high spin isomer in 146Eu

E. Ideguchi,X. H. Zhou,Y. Gono,S. Mitarai,T. Morikawa,M. Kidera,H. Tsuchida,M. Shibata,H. Watanabe,M. Miyake,A. Odahara,M. Oshima,Y. Hatsukawa,S. Hamada,H. Iimura,T. Ishi,T. Kishida,M. Ishihara

A new high spin isomer in 146Eu

1999

E. Ideguchi
X. H. Zhou
Y. Gono
S. Mitarai
T. Morikawa
M. Kidera
H. Tsuchida
M. Shibata
H. Watanabe
M. Miyake
A. Odahara
M. Oshima
Y. Hatsukawa
S. Hamada
H. Iimura
T. Ishi
T. Kishida
M. Ishihara

High spin states of 146Eu were studied by in-beam gamma ray spectroscopic techniques using 140Ce(10B,4n)146Eu and 139La(13C,6n)146Eu reactions. The level scheme was established up to 10MeV. A new high spin isomer with 10ns half life was found. Configurations of yrast states were understood by a weak coupling of f7/2 neutron to those of 145Eu.

Keywords:

Atomic physics
Spin-½
Yrast
Gamma ray
Neutron
Spin states
Physics
Coupling

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