A remark on the tau-neutrino mass limit

Abstract

We point out that the usual experimental upper bounds on the ``tau-neutrino mass'' do not apply if neutrino mixing is considered. The suppression of the population of the tau decay spectrum near the end-point, caused by mixing, may be compensated by an enhancement due to a resonant mechanism of hadronization. It is necessary therefore to analyse the whole spectrum to infer some limit to the ``tau-neutrino mass". We argue that, consequently, neutrino mixing evades the objection to interpret KARMEN anomaly as a heavy sequential neutrino.

9 pages, RevTeX 3.0 file, 1 figure contained in a postscript file appended in the end of the document

References in corpus (5)

• Candidate Events in a Search for Muon Antineutrino to Electron Antineutrino Oscillations
• Remarks on the KARMEN Anomaly
• Possible pre-LEP200 SUSY threshold signals
• Some consequences in weak processes of three generations mixing in the leptonic sector
• Three generation vacuum oscillations and the solar neutrino problem

Cited by in corpus (2)

• Does the KARMEN time anomaly originate from a beam-correlated background?
• Limits on Majorana Neutrinos from Recent Experimental Data