Abstract
The lifetimes of proposed 3-phonon states in 112Cd have been measured using the Doppler shift attenuation method (DSAM) following the (n,n′γ) reaction. The experimental results allow the determination of relevant B(E2) values which are compared to different theoretical descriptions. Collective enhancements favouring the interpretation of collectivity in the phonon model are observed for 3+ and 4+ members of the 3-phonon quintuplet. However, for the proposed 2+ member, this simple model fails most likely due to the subtle interplay between intruder, mixed-symmetry, and phonon states, and the decay pattern is strongly perturbed. The best overall agreement is obtained with IBM-2 calculations.
Original language | English |
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Pages (from-to) | 259-265 |
Number of pages | 7 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 387 |
Issue number | 2 |
DOIs | |
State | Published - Oct 17 1996 |
Keywords
- 3-phonon states
- B(E2) values
- DSAM
- IBM
- Lifetimes
- Phonon model
ASJC Scopus subject areas
- Nuclear and High Energy Physics