Assertion: muon | /r/UsedFor | the lightest nuclei
Facets:
value: outside of the nucleus
type: OTHER
value: mainly
type: DEGREE
Source sentences:
text: For the lightest nuclei (B-C1) the muon is mainly outside of the nucleus, and the x-ray energies are no longer sensitive to the details of the charge distribution and give  the mean value of the square of the charge radius as the only information, exactly as is the case for the corresponding optical transitions in (electronic) atoms (see sects.