Hypersharp Neutrino Lines

Abstract

Neutrino lines from very long lived nuclei in simple crystals such as metals have hypersharp natural width, motionally narrowed by lattice vibrations in analogy to recoilless emission. A generalized hypersharp line fraction including the recoilless part can be derived in a frequency modulation approach. The nue lines of natural width in 3H to 3He 2-body beta-decay can then be resonantly captured with geometrical cross section. The extreme sharpness DeltaE/E~10-29 of the tritium nue line can probe the Planck length L via its limits on the widths of states, DeltaE/E(L) =L(L/R)beta =10-20(beta ~1) to 10-40 (beta= L/R(fm)). Stringent limits can be set on beta, thus, on models of quantum gravity.

References in corpus (1)

• Oscillations of Mossbauer neutrinos

Cited by in corpus (7)

• Disentangling Neutrino Oscillations
• Neutrino oscillations and uncertainty relations
• Mossbauer neutrinos in quantum mechanics and quantum field theory
• Comment on "Hypersharp Resonant Capture of Neutrinos as a Laboratory Probe of the Planck Length"
• Using Neutrinos to test the Time-Energy Uncertainty Relation in an Extreme Regime
• Testing Nonstandard Neutrino Properties with a Mössbauer Oscillation Experiment
• Mössbauer Antineutrinos: Recoilless Resonant Emission and Absorption of Electron Antineutrinos