Abstract
Measurements have been made of the isotope shift in the muonic x rays for the pairs of isotopes -, -, -, and -. The measurements were limited in resolution by the conventional NaI detectors used: no fine or hyperfine structure was resolved. The results confirm the indications from optical isotope-shift measurements that the expansion in charge distribution of a nucleus on addition of neutrons is less than the expansion in the density distribution, and indicate that this trend is even more marked in the light nuclei examined.
- Received 3 August 1965
DOI:https://doi.org/10.1103/PhysRev.141.48
©1966 American Physical Society