OperaV1, PascalFrancis, Checkpoint, bibRecord, 000059

On the possibility of superluminal neutrino propagation

Identifieur interne : 000059 ( PascalFrancis/Checkpoint ); précédent : 000058; suivant : 000060

On the possibility of superluminal neutrino propagation

Auteurs : Jean Alexandre [Royaume-Uni] ; John Ellis [Royaume-Uni, Suisse] ; Nick E. Mavromatos [Royaume-Uni, Suisse]

Source :

Physics letters. Section B [ 0370-2693 ] ; 2012.

RBID : Pascal:12-0224570

Descripteurs français

Pascal (Inist)
- Neutrino, Supernova, Rayonnement gravitationnel, Invariance Lorentz, Modèle théorique, Fermion, Théorie jauge, Champ fermion, Particule sans masse, Particule élémentaire.
Wicri :
- topic : Particule élémentaire.

English descriptors

KwdEn :
- Elementary particles, Fermion field, Fermions, Gauge theory, Gravitational radiation, Lorentz invariance, Massless particles, Neutrinos, Supernovae, Theoretical model.

Abstract

We analyze the possibility of superluminal neutrino propagation δν ≡ (v - c)/c > 0 as indicated by OPERA data, in view of previous phenomenological constraints from supernova SN1987a and gravitational Cerenkov radiation. We argue that the SN1987a data rule out δν ∼ (E_ν/M_N)^N for N ≤ 2 and exclude, in particular, a Lorentz-invariant interpretation in terms of a 'conventional' tachyonic neutrino. We present two toy Lorentz-violating theoretical models, one a Lifshitz-type fermion model with superluminality depending quadratically on energy, and the other a Lorentz-violating modification of a massless Abelian gauge theory with axial-vector couplings to fermions. In the presence of an appropriate background field, fermions may propagate superluminally or subluminally, depending inversely on energy, and on direction. Reconciling OPERA with SN1987a would require this background field to depend on location.

Affiliations:

Royaume-Uni, Suisse

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Le document en format XML

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<front><div type="abstract" xml:lang="en">We analyze the possibility of superluminal neutrino propagation δν ≡ (v - c)/c > 0 as indicated by OPERA data, in view of previous phenomenological constraints from supernova SN1987a and gravitational Cerenkov radiation. We argue that the SN1987a data rule out δν ∼ (E<sub>ν/</sub>
M<sub>N</sub>
)<sup>N</sup>
 for N ≤ 2 and exclude, in particular, a Lorentz-invariant interpretation in terms of a 'conventional' tachyonic neutrino. We present two toy Lorentz-violating theoretical models, one a Lifshitz-type fermion model with superluminality depending quadratically on energy, and the other a Lorentz-violating modification of a massless Abelian gauge theory with axial-vector couplings to fermions. In the presence of an appropriate background field, fermions may propagate superluminally or subluminally, depending inversely on energy, and on direction. Reconciling OPERA with SN1987a would require this background field to depend on location.</div>
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On the possibility of superluminal neutrino propagation

On the possibility of superluminal neutrino propagation

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri