ON THE ELECTRON STABILITY MEASURED BY THE COINCIDENCE SPECTROSCOPY.

R. E. ALONSO; A. LÓPEZ GARCÍA; H. VUCETICH

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH A - ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPAMENT

Año: 1996 vol. 380 p. 568 - 571

0168-9002

  The fast-slow coincidence technique has been used for the first time to measure the electron half-life, obtaining a very simple way for extracting noise background  from real signals. In this paper we present a 986h measurement for the channel  e- ®g + n, realized in a laboratory practically without any cosmic-ray shielding and with common low-resolution BaF2 scintillators, obtaining a period of  Te > 3.15x1021 yr. This result is analized in comparison with previous reports obtained in ultra-low background, massive and high resolution Ge detectors located thousand meters underground. So, an extrapolation of the limit that would be obtained under such conditions is evaluated.