Neutrino propagation in matter using the wave packet approach | Zendy

J. Peltoniemi | Zendy; V. Sipiläinen | Zendy

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Neutrino propagation in matter using the wave packet approach

Author(s) -

J. Peltoniemi,

V. Sipiläinen

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/06/011

Subject(s) - wave packet , physics , neutrino , neutrino oscillation , formalism (music) , observable , coherence (philosophical gambling strategy) , oscillation (cell signaling) , coherence length , matter wave , network packet , quantum electrodynamics , computational physics , particle physics , classical mechanics , quantum mechanics , quantum , computer science , art , musical , superconductivity , biology , visual arts , genetics , computer network

We study the oscillations and conversions of relativistic neutrinospropagating in matter of variable density using the wave packet formalism. Weshow how the oscillation and coherence lengths are modified in comparison withthe case of oscillations in vacuum. Secondly, we demonstrate how the equationof motion for two neutrino flavors can be formally solved for almost arbitrarydensity profile. We calculate finally how the use of wave packets alters thenonadiabatic level crossing probabilities. For the most common physicalenvironments the corrections due to the width of the wave packet do not lead toobservable effects.Comment: 21 pages, LATEX, no figure

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