Competition between the decay channels of the Vertical Bar2s/sub 1/2/ > level of the mesoatom and the possibility of observing effects due to neutral currents

For mesoatoms in the region 6 .. 1s) mesonic transition and contains information on the weak neutral moun-nucleus interaction, while the quantity deltah..omega.. is equal to the energy of the dipole transition in the electron shell of the mesoatom. The dependences of the intensities of groups of strongly and weakly shifted satellites on the shell occupation are determined. The probabilities of the conversion E0(2s ..-->.. 1s) and E1(2s ..-->.. 2p) meson transitions are obtained. It is shown that in the region 6 state to decrease to about 10/sup -5/. An empirical method of searching for a situation in which the electron does not undergo capture into the L shell during a time approx.10/sup -10/ sec is discussed. The decay processes are studied in detail for the Vertical Bar2s/sub 1/2/> state of the mesoatom (..mu..Na), which togethermore » with (..mu..Ne) can be considered a suitable system for observing neutral current effects, since in these mesoatoms the total intensity of the nondiscriminated group of weakly shifted satellites for all the shell configurations no longer greatly exceeds the intensity of the informative line h..omega../sub 0/, while the effect of parity nonconservation is still sizeable.« less