Coherence of neutrino oscillations in the wave packet approach

Abstract

The temporal and spatial coherence widths of the microscopic process by which a neutrino is detected are incorporated in the quantum mechanical wave packet treatment of neutrino oscillations, confirming the observation of Kiers, Nussinov and Weiss that an accurate measurement of the energies of the particles participating in the detection process can increase the coherence length. However, the wave packet treatment presented here shows that the coherence length has an upper bound, determined by the neutrino energy and the mass-squared difference, beyond which the coherence of the oscillation process is lost.

7 pages, no figures. The case of a large temporal coherence width of the detector is clarified

References in corpus (2)

• Neutrino oscillations in a model with a source and detector
• When do neutrinos cease to oscillate?

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