0νββ Decays of 100Mo by Means of ELEGANT V

Exclusive measurements of neutrino-less double beta decays(0 vββ) of ¹⁰⁰Mo were made by means of ELEGANT V. Most stringent lower limits on the half-lives were obtained for the 0 vββ ground state transition as T_1/2^{0 v}( m _v) > 5.2 × 10 ²²y, T_1/2^{0 v}(λ) > 3.9 × 10 ²²y and T_1/2^{0 v}( η) > 5.1 × 10 ²²y, for the mass term < m _v> and the right handed current terms of <λ> and < η>, respectively. The most stringent lower limit on the 0 vββB followed by Majoron(B) was derived as T_1/2^{0 vB} > 5.4 × 10 ²¹ y. These lead to the upper limits of < m _v> < 2.2eV, <λ> < 3.7 × 10 ^-6, < η> < 2.5 × 10 ^-8 and < g _B> < 7.3 × 10 ^-5 with g _B being the coupling of B with the neutrino field.