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Rotations and intrinsic K$pi$ = 1$sup +$ excitations in deformed rare-earth nuclei

Journal Article · · Nucl. Phys., A, v. A215, no. 1, pp. 178-188
OSTI ID:4379517
The K/sup pi / = 1/sup +/ intrinsic excitations in deformed rare-earth nuclei are studied in the framework of the random-phase approximation, which excludes the spurious state (zero-energy excitation) related with the rotation of the whole nucleus. The Nilsson-plus-pairing, quadrupole, and spin-dependent (magnetic dipole or spin-quadrupolel force model is taken. Cranking-model formulas for the moment of inertia and the collective gyromagnetic ratio are derived as the zero-energy limit of the lowest K/sup pi / = 1/sup +/ excited state s to the ground state of /sup 170/Yb are also calculated. The M1 transition strengths are concentrated almost below 6 MeV, while the E2 ones are scattered even up to 12 MeV. Several levels around 12 MeV show rather strong E2 transitions of DELTA N = 2 character. (auth)
Research Organization:
Kernforschungsanlage, Juelich, Ger.
NSA Number:
NSA-29-006544
OSTI ID:
4379517
Journal Information:
Nucl. Phys., A, v. A215, no. 1, pp. 178-188, Journal Name: Nucl. Phys., A, v. A215, no. 1, pp. 178-188; ISSN NUPAB
Country of Publication:
Country unknown/Code not available
Language:
English