Abstract
The first 2+ states in 134Ce and 136Nd and the second 2+ state in 136Nd were populated by Coulomb excitation at relativistic energies, and γ -rays were measured using the RISING setup at GSI. For 134Ce an indication of the excitation to the second 2+ state was observed. This experiment performed for
the first time Coulomb excitation to second 2+ states with rare isotope beams at relativistic energies.For 136Nd the B(E2; 2+1 → 0+), B(E2; 2+2 → 0+), and B(E2; 2+2 → 2+1 ) values relative to the previously known B(E2; 2+ 1 → 0+) value for 134Ce are determined as 81(10), 11(3) and 180(92) W.u., respectively.
The results are discussed in the framework of geometrical models that indicate pronounced γ -softness in these nuclei.
the first time Coulomb excitation to second 2+ states with rare isotope beams at relativistic energies.For 136Nd the B(E2; 2+1 → 0+), B(E2; 2+2 → 0+), and B(E2; 2+2 → 2+1 ) values relative to the previously known B(E2; 2+ 1 → 0+) value for 134Ce are determined as 81(10), 11(3) and 180(92) W.u., respectively.
The results are discussed in the framework of geometrical models that indicate pronounced γ -softness in these nuclei.
| Original language | English |
|---|---|
| Pages (from-to) | 19-23 |
| Number of pages | 5 |
| Journal | Physics Letters B |
| Volume | 669 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
Keywords
- BETA-DECAY
- EVEN NUCLEI
- BOSON MODEL
- ISOTOPES
- ROTATION
- REGION