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The nuclear matter isovector and spin symmetry energy coefficients (s.e.c), respectively A0,1 and A1,0, are investigated in the framework of the generalized nuclear polarizability with Skyrme interactions explicitly as functions of the temperature, as worked out in Refs. [1, 2]. The results for the (very small) variation of the isovector s.e.c, shown in Ref. [1], are compared explicitly with results from other groups. The variation of the spin s.e.c. is also very small. [ABSTRACT FROM AUTHOR]

This study focuses on the investigation of the magnetic dipole moments of the excited IπK = 1+1 states in the even-even deformed nuclei in the framework of the Quasi-particle Random Phase Approximation (QRPA). An analytic expression for the magnetic dipole moments of the states known to be generated by the isovector spin-spin forces is obtained. Using this analytic expression, the magnetic moments of the low-lying 1+ states for the 148,150Ce and 150,152Nd isotopes are also calculated numerically in the spectroscopic energy region. Furthermore, the reduced transition probabilities B(M1) and the lifetimes for each 1+ state are given. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]