Abstract
Strong-interaction effects have been observed in the x-ray spectra of atoms formed with hyperons in W and Pb. The spectra were analyzed for energy shifts and broadenings and for yield reductions of the final x-ray transitions before absorption of the by the nucleus. The results for the 10l→9k transitions of hyperonic atoms averaged over fine structure components are : ɛ(9k)=214±60 eV, Γ(9k)=18±149 eV, Γ(10l)=2±2 eV; : ɛ(9k)=422±56 eV, Γ(9k)=428±158 eV, Γ(10l)=17±3 eV, where the strong interaction shift ɛ=-, is the measured transition energy, and is the transition energy calculated assuming no strong interaction and Γ is the Lorentzian broadening. A four-parameter optical potential representing an effective spin-independent -nuclear hadronic interaction was fitted by these results in combination with previous data from lower-Z nuclei.
- Received 7 October 1992
DOI:https://doi.org/10.1103/PhysRevC.47.1263
©1993 American Physical Society