On the possibility of experimental study of rare eta-, omega-, and eta '-meson decays with the U-70 accelerator

We consider potential experiments at the U-70 accelerator (Institute for Hi gh Energy Physics, Protvino) on the search and study of rare neutral eta-, omega-, and eta -meson decays that are critical for the modern theory, at a qualitatively new level of statistical accuracy. A special setup with the use of meson tagging and electromagnetic calorimetry on PbWO4 crystals is o ffered for this experiment. The neural net approach was invoked at the stag e of data processing. The Monte Carlo simulation of the experiment demonstr ated its high sensitivity to rare-decay detection, which far exceeds the ex isting world results.