2018 Impact factor 2.481
Hadrons and Nuclei


Eur. Phys. J. A 14, 7-11 (2002)
DOI: 10.1140/epja/iepja1363

Short Note

Excited states of $\chem{^{154}Tm}$

C. Foin1, A. Gizon1, J. Genevey1, J. Gizon1, P. Paris2, F. Farget1, D. Santos1, D. Barnéoud1 and A. Plochocki3

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  Institute of Experimental Physics, 00-681, Warsaw, Poland

genevey@isn.in2p3.fr

(Received: 4 January 2002 / Revised version: 7 March 2002 Communicated by J. Äystö)

Abstract
A high-spin level structure of the nucleus 154Tm has been established for the first time up to 6.14 MeV. The $\chem{^{118}Sn+ {}^{40}Ca}$ reaction at 205 MeV associated with the recoil shadow method was used to identify the $I^\pi=(19)^+$ isomeric state at 2.74 MeV. In-beam $\gamma$-ray and conversion electron spectroscopy have been applied on the 144Sm( 14N, 4n) 154Tm reaction at 95 MeV to build the level scheme. The level structure of 154Tm is compared to other structures observed in N=85 neighbouring nuclei.

PACS
21.10.Pc - Single-particle levels and strength functions.
23.20.Lv - Gamma transitions and level energies .
27.70.+q - $150\leq A \leq 189$ .

© Società Italiana di Fisica, Springer-Verlag 2002