Two Kinds of Signature Splittings in Odd-A Superdeformed Nuclei

Li Long

Chinese Physics C> 1998, Vol. 22> Issue(8) : 732-738

Two Kinds of Signature Splittings in Odd-A Superdeformed Nuclei

Li Long ^,

Department of Physics, Peking University, Beijing 100871

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Abstract：
Two kinds of siganttre splittings, the △I=1 staggering and the band head splitting, are studied in odd-A superdeformed nuclei in the A-190 mass region. It is shown that the band bead splittings exist in the signature partner bands of some odd-A superdeformed nuclei by means of analysing the experimental M1 transition energies between the partner bands. A possible mechanism is proposed for this phenomenon.

References

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Byrski T, Beck F A et al. Phys. Rev. Lett, 1990, 64: 1650 Stephens F S, Deleplanque M A et al. Phys. Rev. Lett., 1990, 65: 301[2] Flibotte S, Andrews H R et al. Phys. Rev. Lett., 1993, 71:4299 B Cedemall, R F Janssens et al. Phy. Rev. Lett, 1994,72: 3150[3] Wu Chongshi. High Energy Physics and Nuclear Physics (in Chinese), 1997, 21(7):621-626(吴崇试,高能物理与核物理,1997,21(7):621-626)[4] Bengtsson R, Frisk H et al. Nucl. Phys., 1984, A415: 189; Drissi S, Li Ziping et al. Nucl. Phys., 1996, A600:63[5] Bentsson R, Garrett J D (1984). Lund Mph-84 / 18, The Cranking Model-Theo~tical and Experimental Basis[6] Ring P, Shuck P. The Nuclear Many-body Problem, (Springer-verlag, 1980)[7] Hara K, Iwasaki S. Nucl. Phys., 1984, A430: 175[8] Hackman G, Krucken R et al. Phys. Rev., 1997, C55: 148[9] Bouneau S, Wilson A N et al. Phys. Rev., 1996, C53:9[10] Joyce M, Sharpey-Schafer J F et al. Phys. Rev. Lett., 1993, 71:2176[11] Ducroux I, Astier A et al. Phys. Lett., 1994, B341:6[12] Duprat I, Azaiez F et al. Phys. Rev., 1996, C53:2706

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Li Long. Two Kinds of Signature Splittings in Odd-A Superdeformed Nuclei[J]. Chinese Physics C, 1998, 22(8): 732-738.

Li Long. Two Kinds of Signature Splittings in Odd-A Superdeformed Nuclei[J]. Chinese Physics C, 1998, 22(8): 732-738. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Two Kinds of Signature Splittings in Odd-A Superdeformed Nuclei

Li Long ^,

Corresponding author: Li Long,

Department of Physics, Peking University, Beijing 100871

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1998-08-05

Abstract: Two kinds of siganttre splittings, the △I=1 staggering and the band head splitting, are studied in odd-A superdeformed nuclei in the A-190 mass region. It is shown that the band bead splittings exist in the signature partner bands of some odd-A superdeformed nuclei by means of analysing the experimental M1 transition energies between the partner bands. A possible mechanism is proposed for this phenomenon.