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E2 transitions in the SU(3) formalism for N = Z nuclei of the sd and pf shells |
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| Authors: | S. M. Lenzi E. E. Maqueda P. von Brentano |
| Affiliation: | 1. Dipartimento di Fisica, Università degli Studi and INFN, Via F. Marzolo 8, 35131, Padova, Italy 2. Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina 3. Departamento de F?sica, CNEA, Avda. Gral. Paz 1499, 1650, San Martín, Argentina 4. Institute für Kernphysik, Universit?t zu K?ln, Zülpicher Stra?e 77, D-50937, K?ln, Germany |
| Abstract: | We show that the SU(3) coupling scheme reproduces the data for E2 transitions in N = Z even-even nuclei both of the sd and the pf shells. The SU(3) results are compared with large-scale shell model calculations. Along the ground-state band-like structures, the increase of the B(E2) values with spin toward a maximum value and the subsequent fall with further increasing spin are reproduced rather well. The role of the quadrupole-quadrupole term of the nuclear residual interaction is stressed. |
| Keywords: | 21.60.-n Nuclear-structure models and methods 21.60.Fw Models based on group theory 23.20.-g Electromagnetic transitions |
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