Proton decay experiment in the kolar gold fields

In total 6 events of special type have been recorded as far in the Kolar Gold Fields experiment. Out of them, there events are fully confined to the detector volume. It is shown that their characteristics are in conformity with the decay of bound nucleons and the background due to neutrino interactions is extremely small. Based on these events, it is suggested that a mean lifetime of protons is about 8×10³⁰ years.