2022 Impact factor 2.7
Hadrons and Nuclei
Eur. Phys. J. A 4, 307-309

Short Note

High-spin states in odd-odd 168Lu

S.K. Katoch1 - S.L. Gupta1 - S.C. Pancholi1 - D. Mehta1 - S. Malik1 - G. Shanker1 - L. Chaturvedi2 - R.K. Bhowmik3

1 Department of Physics and Astrophysics, University of Delhi, Delhi-100 007, India
2 Department of Physics, Banaras Hindu University, Varanasi-221 005, India
3 Nuclear Science Centre, Aruna Asaf Ali Marg, New Delhi-110 067, India

Received: 15 June 1998 / Revised version: 11 January 1999 Communicated by B. Herskind

High-spin states in the odd-odd 168Lu nucleus, populated in the 154Sm(19F,5n) reaction at a beam energy of 96 MeV, were investigated using in-beam $\gamma$-ray spectroscopy techniques. The BC neutron crossing in the yrast band, based on $\pi g_{7/2}[404]7/2^{+} ~{\bigotimes}~ \nu i_{13/2}[642]5/2^{+}$configuration, occurs at ${\hbar}{\omega}$=0.31 MeV. The two side bands, based on $\pi h_{11/2}[514]9/2^{-} {~\bigotimes ~} \nu i_{13/2}[642]5/2^{+}$and $\pi h_{9/2}[541]1/2^{-} {~\bigotimes ~} \nu i_{13/2}[642]5/2^{+}$configurations, show anomalous signature-splitting and signature-inversion in the first one, to occur at ${\hbar}{\omega}$=0.24 MeV. A moderately delayed BC-crossing is anticipated in the second one.

27.70.+q $150 \le A \le 189$

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