T. Beuschel et al., MICROSCOPIC DESCRIPTION OF THE SCISSORS MODE AND ITS FRAGMENTATION, Physical review. C. Nuclear physics, 57(3), 1998, pp. 1233-1236
The M1 transition and ground state spectra of the even-even Dy160-164
and Gd156-160 isotopes are calculated within the framework of the micr
oscopic pseudo-SU(3) shell model. A reasonable description of the M1 s
trength function, including its fragmentation, is obtained with an int
eraction that includes collective as well as single-particle and pairi
ng terms with the parameters of the theory fit to the energy spectrum
and E2 transition strengths.