Mass dependence of the static quadrupole moments of the first 2+ states in the cadmium isotopes

Electric Quadrupole Excitation of the First Excited State of 11B

“…The fitted line shape consisted of a skewed gaussian with an exponential tail; this line shape has been found to be satisfactory in previous analyses of similar data (see e.g. Esat et al 1976).…”

Shell-model-based deformation analysis of light cadmium isotopes

“…A problem, at present, is still the knowledge of too few data because of the difficulties to extract rather complete sets of reduced E2 matrix elements using Coulomb excitation [14][15][16]. Therefore, there is need for experiments that use higher-energy Coulomb excitation, which is one of the goals of HIE-ISOLDE project [105].…”

Coulomb Excitation of 142Ce and 144Nd

“…that ey > err, which is rather surprising since neutrons carry no charge. However, as stressed by, for example, Faessler and Nojarov (1986), it is the absolute transition strengths which are of crucial importance in testing the theory. This is true not only for the 21 level but also for other levels in order to fix the parameters of the theory.…”

“…Thus, experimental investigation of the mixed-symmetry 2+ state would be of great importance since it could provide a direct measure of the difference between err and ey. In a geometrical picture this mode can be described (Faessler and Nojarov 1986) as a low-lying isovector quadrupole vibration with the protons and neutrons oscillating out of phase. An enhanced M1 strength to the lowest fully symmetric 2+ state would also be expected (Van Isacker et al 1986).…”

“…For example, treatments of symmetry mixing have been published based on the vibrational model (Faessler and Nojarov 1986), the shell model and the particle-core coupling model (Heyde and Sau 1986). Indeed, the latter authors have argued that mixed-symmetry modes are a general feature of any two-component nuclear system.…”