XXth International Conference on Neutrino Physics and Astrophysics
A.Derbin & O.Smirnov for BOREXINO collaboration
Search for Electron Decay Mode e -> nu + gamma with Prototype of
Borexino Detector.
The prototype of the Borexino detector Counting Test Facility, located
in the Gran-Sasso laboratory,
has been used to obtain a bound on the stability of the electron. The
new lower limit the mean lifetime
defined on 32.1 days of data set is 4.6x10^26 yr (90% c.l.).
Based on Phys. Lett. B 525 (2002) 29