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Spin scissors mode and the fine structure of M1 states in nuclei

Abstract : The coupled dynamics of low lying modes, including the scissors mode, and various giant quadrupole resonances are studied with the help of the Wigner Function Moments method generalized to take into account spin degrees of freedom. Equations of motion for collective variables are derived on the basis of Time Dependent Hartree-Fock equations in the model of harmonic oscillator with spin orbital mean field potential plus quadrupole-quadrupole residual interaction. Introducing spin allows one to consider new types of nuclear collective motion where the nucleons with spin 'up' oscillate against nucleons with spin 'down'.
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Submitted on : Monday, August 22, 2011 - 2:25:28 PM
Last modification on : Wednesday, September 16, 2020 - 4:07:54 PM

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E.B. Balbutsev, I.V. Molodtsova, P. Schuck. Spin scissors mode and the fine structure of M1 states in nuclei. Nuclear Physics A, Elsevier, 2011, 872 (1), pp.42-68. ⟨10.1016/j.nuclphysa.2011.09.013⟩. ⟨in2p3-00616393⟩

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