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Sample records for 9j-symbols

  1. Tree technique and irreducible tensor operators for SUq(2) quantum algebra, 9j-symbols

    International Nuclear Information System (INIS)

    The graphic technique of Kuznetsov-Smorodinov for the SUq(2) quantum algebra is discussed. The transformation of trees including the braiding of branches is considered. Using the universal R-matrix the q-analog of 9j-symbol is introduced and its symmetry are examined

  2. New algebraic tables of SU(2) quantities

    International Nuclear Information System (INIS)

    Formulas for Clebsch-Gordan Coefficients, 6-j symbols and 9-j symbols of SU(2) are presented in a ready-to-program way for obtaining algebraic tables. An excerpt of the complete tables are also presented. (Author)

  3. An identity on SU(2) invariants

    Energy Technology Data Exchange (ETDEWEB)

    Kwee, Herry J; Lebed, Richard F [Department of Physics, Arizona State University, Tempe, AZ 85287-1504 (United States)

    2008-01-11

    We prove an identity among SU(2) 6j and 9j symbols that generalizes the Biedenharn-Elliott sum rule. We prove the result using diagrammatic techniques (briefly reviewed here), and then provide an algebraic proof. This identity is useful for studying meson-baryon scattering in which an extra isoscalar meson is produced.