Fully confined events indicative of proton decay in the Kolar Gold Fields detector |
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| Authors: | M.R. Krishnaswamy M.G.K. Menon N.K. Mondal V.S. Narasimham B.V. Sreekantan Y. Hayashi N. Ito S. Kawakami S. Miyake |
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| Affiliation: | Tata Institute of Fundamental Research, Bombay-400005, India;Osaka City University, Osaka, Japan;Institute for Cosmic Ray Research, University of Tokyo, Japan |
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| Abstract: | Three events have been recorded in the Kolar Gold Field experiment with tracks fully confined to the detector volume. It is shown that their characteristics are in conformity with the decay of bound nucleons and that the background due to neutrino interactions is extremely small. Based on these as well as the events reported earlier, we tentatively suggest a mean lifetime of about 7 × 1030 yr for nucleons bound in iron nuclei. |
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