Abstract.
High-spin states of 136La have been investigated with the reaction 130Te( 11B, 5n) at a beam energy of 60 MeV. The level scheme with three collective bands has been updated with spin up to 20 ℏ. The observed πh 11/2 ⊗ νh 11/2 band shows γ-instability with increasing spin according to the TRS calculations. The band crossing and the signature splitting and inversion have been discussed. Other two collective bands based on 12-and 16+ levels were proposed as oblate deformation with γ ∼ -60°. They most probably originate from four- and six-quasiparticle configurations, that is, πh 11/2 ⊗ νg 7/2 h 11/2 2 and πg 7/2 ⊗ νg 7/2 2 d 5/2 h 11/2 2 respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E.S. Paul , Phys. Rev. Lett. 58, 984 (1987).
G. Andersson , Nucl. Phys. A 268, 205 (1976).
E.S. Paul , Phys. Rev. C 40, 1255 (1989).
R.A. Bark , Nucl. Phys. A 691, 577 (2001).
P. Luo , High Energy Phys. Nucl. Phys. 28, 495 (2004) (in Chinese).
S.J. Zhu , Phys. Rev. C 62, 044310 (2000).
S.J. Zhu , Chin. Phys. Lett. 16, 635 (1999).
G. Rainovski , J. Phys. G 29, 2763 (2003).
Y. Liu , Phys. Rev. C 54, 719 (1996).
T. Morek , Nucl. Phys. A 433, 159 (1985).
E.W. Cybulska , Acta Phys. Pol. B 32, 929 (2001).
D.C. Radford, Nucl. Instrum. Methods A 361, 297 (1995).
V. Kumar , Eur. Phys. J. A 17, 153 (2003).
R. Bengtsson , Nucl. Phys. A 237, 139 (1972).
S. Frauendorf , Phys. Lett. B 100, 219 (1981).
S. Frauendorf , Phys. Lett. B 125, 219 (1983).
K. Hauschild , Phys. Rev. C 54, 613 (1996).
Author information
Authors and Affiliations
Corresponding author
Additional information
D. Schwalm
Rights and permissions
About this article
Cite this article
Zhu, S.J., Xiao, S.D., Che, X.L. et al. High-spin states and band structures in the doubly odd 136La nucleus. Eur. Phys. J. A 24, 199–204 (2005). https://doi.org/10.1140/epja/i2004-10136-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epja/i2004-10136-3