Analysis of results of an experimental study of the probability for muonium-antimuonium conversion and of background processes in a separated beam of "surface" muons of the phasotron of the Nuclear Reactions Laboratory of the Joint Institute for Nuclear R
Gordeev V. A., Kiselev A. Yu., Aleshin N. P., Komarov E. N., Miklukho O. V., Naryshkin Yu. G., Sknar' V. A., Sulimov V. V., Tkach I. I., Abazov V. M., Baranov V. A., Bragin A. N., Gustov S. A., Kravchuk N. P., Mamedov T. N., Mirokhin I. V., Savchenko O. V., Fursov A. P.
The complete statistical base acquired in the SPINP-JINR joint experimental search for muonium-antimuonium conversion has been analyzed. A total of 3.44Χ ΙΟ11 muons passed through the target over the two series of physical measurements of the conversion process. One event which qualifies as a muonium-antimuonium conversion was detected. An experimental estimate WMjf< 5.1χ10~7 (90% C.L.) is found for the upper limit on the probability for the conversion process. Results of a study of the probabilities for background processes in the existing formulation of the experiment are reported.