On the possibility of superluminal neutrino propagation
Identifieur interne : 000095 ( PascalFrancis/Corpus ); précédent : 000094; suivant : 000096On the possibility of superluminal neutrino propagation
Auteurs : Jean Alexandre ; John Ellis ; Nick E. MavromatosSource :
- Physics letters. Section B [ 0370-2693 ] ; 2012.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
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 ∼ (Eν/MN)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.
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Format Inist (serveur)
NO : | PASCAL 12-0224570 INIST |
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ET : | On the possibility of superluminal neutrino propagation |
AU : | ALEXANDRE (Jean); ELLIS (John); MAVROMATOS (Nick E.) |
AF : | Department of Physics, King's College London Strand/London WC2R 2LS/Royaume-Uni (1 aut., 2 aut., 3 aut.); Theory Division, Department of Physics, CERN, CH/1211. Geneva/Suisse (2 aut., 3 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Physics letters. Section B; ISSN 0370-2693; Coden PYLBAJ; Royaume-Uni; Da. 2012; Vol. 706; No. 4-5; Pp. 456-461; Bibl. 27 ref. |
LA : | Anglais |
EA : | 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 ∼ (Eν/MN)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. |
CC : | 001B00; 001B20; 001B10 |
FD : | Neutrino; Supernova; Rayonnement gravitationnel; Invariance Lorentz; Modèle théorique; Fermion; Théorie jauge; Champ fermion; Particule sans masse; Particule élémentaire |
ED : | Neutrinos; Supernovae; Gravitational radiation; Lorentz invariance; Theoretical model; Fermions; Gauge theory; Fermion field; Massless particles; Elementary particles |
SD : | Modelo teórico; Teoría gauge; Campo fermiónico |
LO : | INIST-9425B.354000509343070330 |
ID : | 12-0224570 |
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Pascal:12-0224570Le 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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<server><NO>PASCAL 12-0224570 INIST</NO>
<ET>On the possibility of superluminal neutrino propagation</ET>
<AU>ALEXANDRE (Jean); ELLIS (John); MAVROMATOS (Nick E.)</AU>
<AF>Department of Physics, King's College London Strand/London WC2R 2LS/Royaume-Uni (1 aut., 2 aut., 3 aut.); Theory Division, Department of Physics, CERN, CH/1211. Geneva/Suisse (2 aut., 3 aut.)</AF>
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<EA>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.</EA>
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