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Pseudo-SU(4) symmetry in pf-shell nuclei

Abstract : As an alternative to Wigner's spin-isospin SU(4) symmetry, known to be broken in heavier nuclei, a pseudo-SU(4) symmetry is proposed which follows from the combined invariance in pseudospin and isospin. The pseudo-SU(4) scheme is tested in N,Z>28 nuclei, and its consequences with regard to Gamow-Teller β decay are pointed out.
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Submitted on : Friday, April 20, 2007 - 2:42:57 PM
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P. van Isacker, O. Juillet, F. Nowacki. Pseudo-SU(4) symmetry in pf-shell nuclei. Physical Review Letters, American Physical Society, 1999, 82, pp.2060. ⟨10.1103/PhysRevLett.82.2060⟩. ⟨in2p3-00142677⟩



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