Intensity ratios of mesonic x-ray linesK_{alpha _1 } , K_{alpha _2 } andL_{alpha _1 } , L_{beta _2 }

Intensity ratios ofμ-mesonic x-rays in some heavy elements are discussed. Intensity ratios of the (K_{alpha _1 } /K_{alpha _2 } ) and (L_{alpha _1 } /L_{beta _2 } ) lines have been calculated for²⁰⁶Pb,²⁰⁹Bi and²³⁸U with relativistic wavefunctions and retardation effect. Though for a refined calculation, it is necessary to take into consideration several features that are peculiar to mesonic atoms, the present calculations have shown that the observed intensity ratios of mesonic x-rays are not anomalous.