Dependence of muonic x-ray intensity spectra and bond ionicities: Example of oxygen and chlorine in compounds of third-row elements

It is shown that the muonicK β /K α intensity ratios in oxygen of oxides of third-row elements are correlated to the bond ionicities. A similar correlation is found in chlorine of corresponding compounds. These correlations confirm the dominant role played by the outer electrons of the bond partners in the coulomb capture mechanism of negative muons.