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'.

30 pages

References in corpus (4)

• Magnetic dipole excitations in nuclei: elementary modes of nucleonic motion
• The Nuclear Scissors Mode from Various Aspects
• Nuclear Scissors with Pairing and Continuity Equation
• Nuclear Scissors Mode with Pairing

Cited by in corpus (7)

• Experimental status of the nuclear spin scissors mode
• A new type of nuclear collective motion - the spin scissors mode
• Microscopic analysis of low-energy spin and orbital magnetic dipole excitations in deformed nuclei
• Triplet structure of nuclear scissors mode
• Low-energy M1 states in deformed nuclei: spin-scissors or spin-flip?
• Nuclear scissors modes and hidden angular momenta
• Positive and negative parity states of the Two-Rotor Model and scissors modes