Identical Superdeformed Bands in Tl Isotope

HE Xiao-Tao; LIU Shu-Xin; YU Shao-Ying; ZENG Jin-Yan; ZHAO An-Guang

Chinese Physics C> 2004, Vol. 28> Issue(S1) : 36-39

Identical Superdeformed Bands in Tl Isotope

Institute of Theoretical Physics, the Chinese Academy of Sciences, Beijing 100080, China2 College of Physics, Peking University, Beijing 100871,China3 College of Science, Huzhou University, Huzhou 313000, China4 Center of Theoretical Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

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The microscopic mechanism of the identical bands in odd-odd nucleus ¹⁹⁴Tl and its neighbor odd-A nuclei ^193,195Tl are investigated using the particle-number conserving (PNC) method for treating the cranked shell model with monopole and quadrupole pairing interactions. It is found that the blocking effect of the high-j intruder orbital plays an important role in the variation of moments of inertia (J⁽¹⁾ and J⁽²⁾) with rotational frequency for the superdeformed bands and identical bands. The ω variation of the occupation probability of each cranked orbital and the contributions to moment of inertia from each cranked orbital are presented.

References

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. Moore E F et al. Phys. Rev. Lett., 1989, 63: 3602.Nuclear data sheet 97, 2002, 2413.Afanasjev A V, Ring P, Knig J. Nucl. Phys., 2000, A676:1964.Baktash C, Hass B, Nazarewicz W. Annu. Rev. Nucl. Part. Sci., 1995, 45: 4855.Szymanski Z, Nazarewicz W. Phys. Lett., 1998, B433:2296.LIU Y X et al. Phys. Rev., 1999, C59: 2511; Phys. Rev.,2001, C63: 0543147.LIU S X, ZENG J Y, ZHAO E G. Phys. Rev., 2002, C66:0243208.SUN Y, ZHANG J Y, Guidry M. Phys. Rev. Lett., 1997,78: 2321; Phys. Rev., 2001, C63: 0473069.Lennart B Karlsson, Ingemar Kagnarsson, Sven Aberg,Phys. Lett., 1998, B416: 1610.ZENG J Y et al. Phys. Rev., 2001, C63: 02430511.ZENG J Y et al. Phys. Rev., 1994, C50: 1388. 02430512.ZENG J Y et al. Phys. Rev., 2002, C65: 04430713.LIU S X, ZENG J Y. Phys. Rev., 1998, C58: 326614.Bengtsson T, Ragnarsson I. Nucl. Phys., 1985, A436: 1415.Bouneau S et al. Phys. Rev., 1996, C53: R916.Duprat J et al. Phys. Lett., 1994, B341: 6

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HE Xiao-Tao, LIU Shu-Xin, YU Shao-Ying, ZENG Jin-Yan and ZHAO An-Guang. Identical Superdeformed Bands in Tl Isotope[J]. Chinese Physics C, 2004, 28(S1): 36-39.

HE Xiao-Tao, LIU Shu-Xin, YU Shao-Ying, ZENG Jin-Yan and ZHAO An-Guang. Identical Superdeformed Bands in Tl Isotope[J]. Chinese Physics C, 2004, 28(S1): 36-39. shu

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Received: 2004-12-30
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Identical Superdeformed Bands in Tl Isotope

Corresponding author: HE Xiao-Tao,

Institute of Theoretical Physics, the Chinese Academy of Sciences, Beijing 100080, China2 College of Physics, Peking University, Beijing 100871,China3 College of Science, Huzhou University, Huzhou 313000, China4 Center of Theoretical Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

Received Date: 2004-12-30
Accepted Date: 1900-01-01
Available Online: 2004-04-02

Abstract: The microscopic mechanism of the identical bands in odd-odd nucleus ¹⁹⁴Tl and its neighbor odd-A nuclei ^193,195Tl are investigated using the particle-number conserving (PNC) method for treating the cranked shell model with monopole and quadrupole pairing interactions. It is found that the blocking effect of the high-j intruder orbital plays an important role in the variation of moments of inertia (J⁽¹⁾ and J⁽²⁾) with rotational frequency for the superdeformed bands and identical bands. The ω variation of the occupation probability of each cranked orbital and the contributions to moment of inertia from each cranked orbital are presented.