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

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).

arXiv comment9 pages, 3 figures; talk at the NANP'05 Conference

References in corpus (4)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• Observation of beta decay of In-115 to the first excited level of Sn-115
• Solar Neutrino Measurements
• Prototype scintillator cell for an In-based solar neutrino detector

Cited by in corpus (7)

• Direct Measurements of Neutrino Mass
• Experimental searches for rare alpha and beta decays
• Investigation of potential ultra-low $Q$-value $\beta$-decay candidates ${}^{89}$Sr and ${}^{139}$Ba using Penning trap mass spectrometry
• Precise measurement of energy of the first excited state of 115Sn (Eexc = 497.3 keV)
• Identification of a potential ultra-low Q value electron capture decay branch in ${}^{75}$Se via a precise Penning trap measurement of the mass of ${}^{75}$As
• Neutrino mass measurements using cryogenic detectors
• High-precision direct decay energy measurements of the electron-capture decay of ${}^{97}$Tc