2018 Impact factor 2.481
Hadrons and Nuclei
Eur. Phys. J. A 6, 387-390

Short note

A new high spin isomer in 146Eu

E. Ideguchi1,2 - X.H. Zhou2 - Y. Gono3 - S. Mitarai3 - T. Morikawa3 - M. Kidera3 - H. Tsuchida3 - M. Shibata3 - H. Watanabe1#1 - M. Miyake3 - A. Odahara4 - M. Oshima5 - Y. Hatsukawa5 - S. Hamada5 - H. Iimura5 - M. Shibata5 - T. Ishi5 - T. Kishida2 - M. Ishihara2

1 Department of physics, Royal Institute of Technology, Frescativ 2#2gen 24, 104 05 Stockholm, Sweden
2 The Institute of Chemical and Physical Research (RIKEN), Hirosawa 2-1, Wako, Saitama 351-0198, Japan
3 Department of Physics, Faculty of Science, Kyushu University, Hakozaki 6-10-1, Fukuoka 812-8581, Japan
4 Nishinippon Institute of Technology, Fukuoka 800-0394, Japan
5 Japan Atomic Energy Research Institute(JAERI), Ibaraki 319-1195, Japan

Received: 2 November 1999 Communicated by B. Herskind

Abstract
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.

PACS
21.10.-k Properties of nuclei; nuclear energy levels - 23.20.Lv Gamma transitions and level energies - 25.70.Gh Compount nucleus - 27.60.+j 3#3


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