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Apparent superluminal neutrino propagation caused by nonlinear coherent interactions in matter

Identifieur interne : 000432 ( PascalFrancis/Curation ); précédent : 000431; suivant : 000433

Apparent superluminal neutrino propagation caused by nonlinear coherent interactions in matter

Auteurs : Ram Brustein [Israël, France, Allemagne] ; Dmitri Semikoz [France, Russie]

Source :

RBID : Pascal:12-0224573

Mots-clés :

Abstract

Quantum coherence can significantly increase the strength of the forward scattering of neutrinos propagating through the Earth and interacting with matter. The index of refraction of the neutrinos propagating in a medium and hence their phase velocity is determined by the forward scattering. So, depending on the nature of the interaction of neutrinos with matter, their phase velocity can be larger than the speed of light in vacuum. We show that such effects can explain the apparent superluminal propagation of muon neutrinos found recently by the OPERA experiment. Our proposal explains why the neutrino oscillations and the propagation of neutrinos from supernova 1987A are unaffected. It can be verified by changing the amount of neutrino coherence or by changing the composition of matter in which they propagate.

pA  
A01 01  1    @0 0370-2693
A02 01      @0 PYLBAJ
A03   1    @0 Phys. lett., Sect. B
A05       @2 706
A06       @2 4-5
A08 01  1  ENG  @1 Apparent superluminal neutrino propagation caused by nonlinear coherent interactions in matter
A11 01  1    @1 BRUSTEIN (Ram)
A11 02  1    @1 SEMIKOZ (Dmitri)
A14 01      @1 Department of Physics, Ben-Gurion University @2 Beer-Sheva 84105 @3 ISR @Z 1 aut.
A14 02      @1 APC. 10 rue Alice Domon et Leonie Duquet @2 75205 Paris @3 FRA @Z 1 aut. @Z 2 aut.
A14 03      @1 CAS, Ludwig-Maximilians-Universität München @2 80333 München @3 DEU @Z 1 aut.
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A21       @1 2012
A23 01      @0 ENG
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A44       @0 0000 @1 © 2012 INIST-CNRS. All rights reserved.
A45       @0 13 ref.
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A60       @1 P
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A64 01  1    @0 Physics letters. Section B
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C01 01    ENG  @0 Quantum coherence can significantly increase the strength of the forward scattering of neutrinos propagating through the Earth and interacting with matter. The index of refraction of the neutrinos propagating in a medium and hence their phase velocity is determined by the forward scattering. So, depending on the nature of the interaction of neutrinos with matter, their phase velocity can be larger than the speed of light in vacuum. We show that such effects can explain the apparent superluminal propagation of muon neutrinos found recently by the OPERA experiment. Our proposal explains why the neutrino oscillations and the propagation of neutrinos from supernova 1987A are unaffected. It can be verified by changing the amount of neutrino coherence or by changing the composition of matter in which they propagate.
C02 01  3    @0 001B00
C02 02  3    @0 001B20
C02 03  3    @0 001B10
C03 01  3  FRE  @0 Neutrino muonique @5 26
C03 01  3  ENG  @0 Muon neutrinos @5 26
C03 02  X  FRE  @0 Cohérence quantique @5 27
C03 02  X  ENG  @0 Quantum coherence @5 27
C03 02  X  SPA  @0 Coherencia cuántica @5 27
C03 03  X  FRE  @0 Diffusion avant @5 28
C03 03  X  ENG  @0 Forward scattering @5 28
C03 03  X  SPA  @0 Difusión hacia adelante @5 28
C03 04  3  FRE  @0 Diffusion neutrino @5 29
C03 04  3  ENG  @0 Neutrino scattering @5 29
C03 05  3  FRE  @0 Indice réfraction @5 30
C03 05  3  ENG  @0 Refractive index @5 30
C03 06  3  FRE  @0 Vitesse phase @5 31
C03 06  3  ENG  @0 Phase velocity @5 31
C03 07  3  FRE  @0 Interaction neutrino @5 32
C03 07  3  ENG  @0 Neutrino interactions @5 32
C03 08  3  FRE  @0 Vitesse lumière @5 33
C03 08  3  ENG  @0 Light velocity @5 33
C03 09  3  FRE  @0 Oscillation neutrino @5 34
C03 09  3  ENG  @0 Neutrino oscillations @5 34
C03 10  3  FRE  @0 Supernova @5 35
C03 10  3  ENG  @0 Supernovae @5 35
C03 11  3  FRE  @0 Particule sans masse @5 36
C03 11  3  ENG  @0 Massless particles @5 36
C03 12  3  FRE  @0 Particule élémentaire @5 37
C03 12  3  ENG  @0 Elementary particles @5 37
N21       @1 170
N44 01      @1 OTO
N82       @1 OTO

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