Double Beta Decays of 100Mo by ELEGANT V at Oto Cosmo Observatory

Abstract Exclusive measurements of neutrino-less double beta decays (0νββ) of 100 Mo were made by means of ELEGANT V. The present status of the double beta decay experiment with ELEGANT V is presented. The data at Oto lab., being combined with the data at Kamioka, gives stringent limits on half-lives for 0νββ and 〈 m ν 〉