| Autor: |
J. W. Lightbody, S. Penner, S. P. Fivozinsky, R. Neuhausen |
| Rok vydání: |
1976 |
| Předmět: |
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| Zdroj: |
Nuclear Physics A. 263:249-260 |
| ISSN: |
0375-9474 |
| DOI: |
10.1016/0375-9474(76)90171-8 |
| Popis: |
The inelastic electron scattering cross sections for the excitation of the low-lying collective states in the even Zn isotopes 64 Zn, 66 Zn, 68 Zn and 70 Zn have been measured in the momentum transfer region q = 0.3–1.1 fm −1 . Strong transitions to the first 2 + and 3 − states have been observed and the modified Tassie model with a two parameter Fermi charge distribution for the ground state was used to extract the values for the reduced transition probability B ↑ (E λ ). Besides the investigation of these states, which in the framework of the vibrational model are considered as one-phonon states, special effort was made to measure the transition to the 2 + two-phonon states in 64 Zn ( e = 1.80 MeV) and 70 Zn ( e = 1.76 MeV). We have applied the anharmonic vibrator model to these two nuclei and have extracted values for the static quadrupole moment of the first excited state. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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