THE U(90) DYNAMICAL SYMMETRY IN LIGHT NUCLEI

LI Guang-Hua; HE Hui-Yong

Chinese Physics C> 1990, Vol. 14> Issue(2) : 164-170

THE U(90) DYNAMICAL SYMMETRY IN LIGHT NUCLEI

LI Guang-Hua ^, ,
HE Hui-Yong

Changsha Normal University of Mater Resources and Electric Power

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Abstract：
In the IBM4,when s.d.g bosons are presented,the symmetry group of the system is U(90) In this paper,the group chain.U₉₀ U₁₅(sdg)×U₆(ST) SU₁₅(sdg)×U₆(ST) SU₅(sdg)× O₆(ST) SO₅(dg)×O₃(S)×O₃(T) O₃(dg)×O₃(S)×O₃(T) O₃(J)×O₃(T) is discussed,the reduction rules and the typical energy spectra are obtained.An example of a spectrum with this dynamical symmetry is found out,where the even-even nucleus ³⁴S and odd-odd nucleus ³⁴Cl are in one multiplet.

References

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A. Arima and F. Iachello, Ann. Phys., (N. Y) 99(1976), 253; 111(1978), 201; 123 (1979). 468[2] P. Halse, J. P. Elliott and J. A. Evans, Nucl. Phys., A417 (1984), 301.[3] Li Guanghua, Sun Hongzhou and Han Qizhi, Commun: is Theor. Phys., 7(1987), 303.[4] Han Qizhi, Sun Hongzhou and Li Guanghua, Phys. Rev., C35(1987), 786.[5] Chen Xueiun, Zhang Mei, Sun Honezhou and Han Qizhi, Sci. Sin., A25(1982), 834.[6] P. M. Endt and C. Van der Leun, Nucl. Phys., A310(1978), 1.[7] B. H. Wildenthal, J. B. McGrory, E. C. HaIbert and H. D. Graber, Phys. Rev., C4(197I), 1708.[8] Sun Hongzhou M Moshinsky, A. Frank and P. Van Isaeker, Kinam, 5(1983), 135.[9] Wu Huachuan, rhys Lett., 110B(1982), 1.[10] 凌寅生，高能物理与核物理，6(1982),77,

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LI Guang-Hua and HE Hui-Yong. THE U(90) DYNAMICAL SYMMETRY IN LIGHT NUCLEI[J]. Chinese Physics C, 1990, 14(2): 164-170.

LI Guang-Hua and HE Hui-Yong. THE U(90) DYNAMICAL SYMMETRY IN LIGHT NUCLEI[J]. Chinese Physics C, 1990, 14(2): 164-170. 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

THE U(90) DYNAMICAL SYMMETRY IN LIGHT NUCLEI

LI Guang-Hua ^,
HE Hui-Yong

Corresponding author: LI Guang-Hua,

Changsha Normal University of Mater Resources and Electric Power

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-02-05

Abstract: In the IBM4,when s.d.g bosons are presented,the symmetry group of the system is U(90) In this paper,the group chain.U₉₀ U₁₅(sdg)×U₆(ST) SU₁₅(sdg)×U₆(ST) SU₅(sdg)× O₆(ST) SO₅(dg)×O₃(S)×O₃(T) O₃(dg)×O₃(S)×O₃(T) O₃(J)×O₃(T) is discussed,the reduction rules and the typical energy spectra are obtained.An example of a spectrum with this dynamical symmetry is found out,where the even-even nucleus ³⁴S and odd-odd nucleus ³⁴Cl are in one multiplet.