Abstract
The high-spin states in the odd-odd 138Pm nucleus have been reinvestigated via the 124Te(19F, 5n) reaction at the beam energy of 103 MeV. Most of the known transitions and levels are confirmed. A number of bands are revised and one new band has been established. For the yrast πh 11/2⊗νh 11/2 band based on 8+ state, no evidence supporting the occurence of signature inversion is found. The experimental and theoretical B(M1)/B(E2) ratios have been calculated for band (2), which support the πg 7/2[413]5/2+ ⊗ νh 11/2[514]9/2− Nilsson configuration assignment. Four bands with ΔI = 2 transitions are tentatively assigned as doubly decoupled bands. The other three bands are proposed as oblate-triaxial bands. The possible configuration assignments for these bands are also discussed under the calculations of total Routhian surface and particle-rotor model.
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References
R. Wadsworth et al., Nucl. Phys. A 526, 188 (1991).
A.A. Hecht et al., Phys. Rev. C 63, 051302 (2001).
J.G. Wang et al., J. Phys. G: Nucl. Part. Phys. 37, 125107 (2010).
Y.Z. Liu et al., Phys. Rev. C 54, 719 (1996).
E.S. Paul et al., Phys. Rev. Lett. 58, 984 (1987).
R.A. Bark et al., Nucl. Phys. A 691, 577 (2001).
C.M. Petrache et al., Nucl. Phys. A 603, 50 (1996).
L. Gu et al., Phys. Rev. C 83, 064303 (2011).
E.Y. Yeoh et al., Phys. Rev. C 85, 064322 (2012).
E.S. Paul et al., Phys. Rev. C 40, 1255 (1989).
S. Juutinen et al., Phys. Rev. C 52, 2946 (1995).
S.J. Zhu et al., High Energy Phys. Nucl. Phys. 29, 130 (2005).
R. Ma et al., Phys. Rev. C 41, 2624 (1990).
C.W. Beausang et al., Phys. Rev. C 42, 541 (1990).
U.D. Pramanik et al., Nucl. Phys. A 632, 307 (1998).
K.S. Krane, R.M. Steffen, R.M. Wheeler, Nucl. Data Tables 11, 351 (1973).
D.C. Radford, Nucl. Instrum. Methods Phys. Res. A 361, 297 (1995).
A.A. Hecht et al., Phys. Rev. C 68, 054310 (2003).
W. Nazarewicz et al., Nucl. Phys. A 503, 285 (1989).
W. Satula, R. Wyss, Phys. Scr. T56, 159 (1995).
N. Tajima, Nucl. Phys. A 572, 365 (1994).
S.E. Larsson, G. Leander, I. Ragnarsson, Nucl. Phys. A 307, 189 (1978).
F. Dönau, S. Frauendorf, in Proceedings of the Conference on High Angular Momentum Properties of Nuclei, OakRidge, edited by N.R. Johnson (Harwood, New York, 1983) p. 143.
F. Dönau, Nucl. Phys. A 471, 469 (1987).
C.W. Beausang et al., Phys. Rev. C 36, 1810 (1987).
K. Hauschild et al., Phys. Rev. C 50, 707 (1994).
S.J. Zhu et al., Eur. Phys. J. A 24, 199 (2005).
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Communicated by H. Miyatake
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Li, H.J., Xiao, Z.G., Zhu, S.J. et al. Reinvestigation of the collective band structures in odd-odd 138Pm nucleus. Eur. Phys. J. A 51, 60 (2015). https://doi.org/10.1140/epja/i2015-15060-9
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DOI: https://doi.org/10.1140/epja/i2015-15060-9