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arXiv 0902.0020physics.comp-phnucl-th
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SO(5)> SO(3)球谐函数和Clebsch-Gordan系数的构造

Construction of SO(5)>SO(3) spherical harmonics and Clebsch-Gordan coefficients

M. A. Caprio, D. J. Rowe, T. A. Welsh

摘要:

SO(5)>SO(3)球谐函数是核集体模型角波函数展开的自然基础。它们是最近提出的在SU(1,1)xSO(5)基上对角化核集体模型哈密顿量的代数方法的基础。我们给出了一个用于显式构造SO(5)>SO(3)球谐函数的计算机程序,并用它们计算了SO(3)耦合基下集体模型计算所需的Clebsch-Gordan系数。有了这些Clebsch-Gordan系数,就有可能用纯代数方法计算集体模型观测量的矩阵元。

英文摘要:

The SO(5)>SO(3) spherical harmonics form a natural basis for expansion of nuclear collective model angular wave functions. They underlie the recently-proposed algebraic method for diagonalization of the nuclear collective model Hamiltonian in an SU(1,1)xSO(5) basis. We present a computer code for explicit construction of the SO(5)>SO(3) spherical harmonics and use them to compute the Clebsch-Gordan coefficients needed for collective model calculations in an SO(3)-coupled basis. With these Clebsch-Gordan coefficients it becomes possible to compute the matrix elements of collective model observables by purely algebraic methods.

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