Precise measurement of $\alpha_K$ and $\alpha_T$ for the 39.8-keV $E3$ transition in $^{103}\mathrm{Rh}$: Test of internal-conversion theory
| Pub type: | Article |
| Citation: | PhysRevC.98.054321 |
| Status: | Published |
| Journal: | Phys. Rev. C |
| Volume: | 98 |
| Year: | 2018 |
| Month: | Nov |
| Pages: | 054321 |
| Publisher: | American Physical Society |
| URL: | https://link.aps.org/doi/10.11... |
| DOI: | 10.1103/physrevc.98.054321 |
| Abstract: | Neutron-activated sources of 103Ru and 103Pd both share the isomeric first-excited state in 103Rh as a daughter product. From independent measurements of both decays, we have measured the K shell and total internal-conversion coefficients, αK and αT , for the 39.8-keV E3 transition, which de-excites that state in 103Rh, to be 141.1(23) and 1428(13), respectively. When compared with Dirac-Fock calculations, our new results disagree with the version of the theory that ignores the K-shell atomic vacancy, which is consistent with our conclusion drawn from a series of measurements on high multipolarity transitions in nuclei with higher Z. Calculations that include the atomic vacancy indicate that the transition actually has a small M4 component with mixing ratio δ = 0.023(5). |
| Month_val: | 11 |
| Sig contrib: | Ninel Nica, John Hardy |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
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