Why Neutrino Lines are Hypersharp
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.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.