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Beta decay of 115-In to the first excited level of 115-Sn: Potential outcome for neutrino mass

C. M. Cattadori·M. De Deo·M. Laubenstein·L. Pandola·V. I. Tretyak
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Abstract

Recent observation of beta decay of 115-In to the first excited level of 115-Sn with an extremely low Q_beta value (Q_beta ~ 1 keV) could be used to set a limit on neutrino mass. To give restriction potentially competitive with those extracted from experiments with 3-H (~2 eV) and 187-Re (~15 eV), atomic mass difference between 115-In and 115-Sn and energy of the first 115-Sn level should be remeasured with higher accuracy (possibly of the order of ~1 eV).

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C. M. Cattadori, M. De Deo, M. Laubenstein, L. Pandola, V. I. Tretyak. 2007-02-14. Beta decay of 115-In to the first excited level of 115-Sn: Potential outcome for neutrino mass. https://doi.org/10.1134/s1063778807010140

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