| Autor: |
Hughes, J.R., Tölle, R., De Boer, J., Butler, P.A., Günther, C., Grafen, V., Gollwitzer, N., Holliday, V.E., Jones, G.D., Lauterbach, C., Marten-Tölle, M., Mullins, S.M., Poynter, R.J., Simon, R.S., Singh, N., Tanner, R.J., Wadsworth, R., Watson, D.L., White, C.A. |
| Zdroj: |
Nuclear Physics A; January 1990, Vol. 512 Issue: 2 p275-293, 19p |
| Abstrakt: |
The nuclear structure of 225Th has been studied using the reaction 226Ra(α, 5n) 225Th at a beam energy of 50 MeV. In-beam γγ, e−e−, e−n and e−γcoincidences have been measured, along with γ-ray and electron intensities, and these have been used to establish a decay scheme up to spin 39/2ħ and excitation energy 2494 keV. Parity doublets have been observed, forming two “quasimolecular bands”, along with enhanced E1 transitions linking states of opposite parity. γ-branching ratios have been measured and an average value of |D0/Q0| = (0.51±0.06)×10−3fm−1has been deduced. The results are compared with calculations incorporating odd multipole degrees of freedom in the description of the nuclear shape. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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