Decoherence, matter effect, and neutrino hierarchy signature in long baseline experiments

Decoherence, matter effect, and neutrino hierarchy signature in long baseline experiments

Environmental decoherence of oscillating neutrinos of strength Γ=(2.3±1.1)×10−23  GeV can explain how maximal θ23 mixing observed at 295 km by T2K appears to be nonmaximal at longer baselines. As shown recently by R. Oliveira, the Mikheyev-Smirnov-Wolfenstein matter effect for neutrinos is altered b...

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Veröffentlicht in:Physical review. D 2017-11, Vol.96 (9), Article 093009
Hauptverfasser: Coelho, João A. B., Mann, W. Anthony
Format: Artikel
Sprache:eng
Schlagworte:
Experiments
High Energy Physics - Phenomenology
Neutrinos
Particle physics
Physics
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Zusammenfassung:Environmental decoherence of oscillating neutrinos of strength Γ=(2.3±1.1)×10−23  GeV can explain how maximal θ23 mixing observed at 295 km by T2K appears to be nonmaximal at longer baselines. As shown recently by R. Oliveira, the Mikheyev-Smirnov-Wolfenstein matter effect for neutrinos is altered by decoherence: in normal (inverted) mass hierarchy, a resonant enhancement of νμ(ν¯μ)→νe(ν¯e) occurs for 6
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.96.093009