| Autor: |
Rösel, Ch., David, P., Folger, H., Hänscheid, H., Konijn, J., Laat, C., Petitjean, C., Reist, H., Rissel, F., Schaller, L., Schellenberg, L., Schrieder, W., Simons, L., Sinha, A., Taal, A. |
| Zdroj: |
Zeitschrift für Physik A Hadrons & Nuclei; 1991, Vol. 340 Issue 2, p199-208, 10p |
| Abstrakt: |
The probabilities for non-radiative (n.r.) excitations P in the muonic nuclidesPb,Th, andU have been determined from (μ,γγ)-measurements by comparing the intensities of muonic X-ray transitions in single and coincidence spectra. The value of P (3 p→1 s), measured for the first time, is about 90% for the actinidesTh andU, but only about 8% forPb. The value of P (3 d→1 s) is found to be 10 % forTh, 13% forU, and about 4% forPb. ForPb a vanishing strength of the n.r. decay of the 2 p-level is found, while forTh and forU n.r. strengths of about 20% and 26%, respectively, are observed. By regarding two subcomplexes of the 2 p→1 s transitions leading to different mean excitation energies the n.r. transition probabilities were found to be different forU only, 21.6% and 31.1.%, respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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