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Limits RegistryThe Borexino solar-neutrino detector at Gran Sasso looked for the 256 keV photon that would be produced if an electron decayed into a photon and a neutrino, violating electric-charge conservation. Finding none, it set a lower limit on the electron lifetime of 6.6x10^28 years in 2015, about five quintillion times the age of the universe.
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The Borexino solar-neutrino detector at Gran Sasso looked for the 256 keV photon that would be produced if an electron decayed into a photon and a neutrino, violating electric-charge conservation. Finding none, it set a lower limit on the electron lifetime of 6.6x10^28 years in 2015, about five quintillion times the age of the universe.
The largest experimental lower bound on the lifetime of the electron against charge-violating decay into a photon and a neutrino.
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Current frontiers derived from accepted Claims.
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The frontier as it changed over time.
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1 accepted Claim, with 1 linked evidence records.
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Limits Registry. LR-ELECTRON-LIFETIME-LOWER-LIMIT. Strongest lower limit on the electron lifetime (charge conservation test). 2026.