Why Neutrino Lines are Hypersharp
High Energy Physics - Phenomenology
2009-09-30 v2
Abstract
It was recently pointed out that mono-energetic neutrino lines from the 2-body decay of tritium (tau ~ 18-y) can be emitted, a significant fraction, with natural line width (~10-24 eV) for hypersharp resonance transitions 3H--> <--3He. The very long lifetime typical of a neutrino transition, encountered for the first time in resonance, is the key to this surprising effect which is not intuitive from perspectives of line broadening in resonances of short lived (tau ~ microsec) states.
Keywords
Cite
@article{arxiv.0908.2980,
title = {Why Neutrino Lines are Hypersharp},
author = {R. S. Raghavan},
journal= {arXiv preprint arXiv:0908.2980},
year = {2009}
}
Comments
Corrected citation for ref. 10