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Constraining neutrino superluminality from searches for sterile neutrino decays

Identifieur interne : 000443 ( PascalFrancis/Curation ); précédent : 000442; suivant : 000444

Constraining neutrino superluminality from searches for sterile neutrino decays

Auteurs : D. S. Gorbunov [Russie] ; E. Ya. Nugaev [Russie]

Source :

RBID : Pascal:12-0277446

Descripteurs français

English descriptors

Abstract

Superluminal neutrinos are expected to lose energy due to bremsstrahlung. It is dominated by e+e--pair production if kinematically allowed. The same signature was used in searches for 3-body decays of hypothetical heavy sterile neutrinos. From the published analyses of these searches performed by CERN PS191 and CHARM experiments we set upper limits on the neutrino velocity in the energy range from 0.2 GeV to 280 GeV. Our limits are well below the neutrino velocity favored by the recent OPERA results. For energy-independent neutrino velocity the limits obtained in this Letter are stronger than those coming from ICARUS experiment and observations of Supernova SN1987a.
pA  
A01 01  1    @0 0370-2693
A02 01      @0 PYLBAJ
A03   1    @0 Phys. lett., Sect. B
A05       @2 713
A06       @2 3
A08 01  1  ENG  @1 Constraining neutrino superluminality from searches for sterile neutrino decays
A11 01  1    @1 GORBUNOV (D. S.)
A11 02  1    @1 NUGAEV (E. Ya.)
A14 01      @1 Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a @2 Moscow 117312 @3 RUS @Z 1 aut. @Z 2 aut.
A20       @1 255-257
A21       @1 2012
A23 01      @0 ENG
A43 01      @1 INIST @2 9425B @5 354000505267490210
A44       @0 0000 @1 © 2012 INIST-CNRS. All rights reserved.
A45       @0 15 ref.
A47 01  1    @0 12-0277446
A60       @1 P
A61       @0 A
A64 01  1    @0 Physics letters. Section B
A66 01      @0 GBR
C01 01    ENG  @0 Superluminal neutrinos are expected to lose energy due to bremsstrahlung. It is dominated by e+e--pair production if kinematically allowed. The same signature was used in searches for 3-body decays of hypothetical heavy sterile neutrinos. From the published analyses of these searches performed by CERN PS191 and CHARM experiments we set upper limits on the neutrino velocity in the energy range from 0.2 GeV to 280 GeV. Our limits are well below the neutrino velocity favored by the recent OPERA results. For energy-independent neutrino velocity the limits obtained in this Letter are stronger than those coming from ICARUS experiment and observations of Supernova SN1987a.
C02 01  3    @0 001B00
C02 02  3    @0 001B20
C02 03  3    @0 001B10
C03 01  X  FRE  @0 Neutrino lourd @5 26
C03 01  X  ENG  @0 Heavy neutrino @5 26
C03 01  X  SPA  @0 Neutrino pesado @5 26
C03 02  3  FRE  @0 Rayonnement freinage @5 27
C03 02  3  ENG  @0 Bremsstrahlung @5 27
C03 03  3  FRE  @0 Annihilation positon @5 28
C03 03  3  ENG  @0 Positron annihilation @5 28
C03 04  3  FRE  @0 Production paire @5 29
C03 04  3  ENG  @0 Pair production @5 29
C03 05  3  FRE  @0 CERN @5 30
C03 05  3  ENG  @0 CERN @5 30
C03 06  X  FRE  @0 Borne supérieure @5 31
C03 06  X  ENG  @0 Upper bound @5 31
C03 06  X  SPA  @0 Cota superior @5 31
C03 07  3  FRE  @0 Supernova @5 32
C03 07  3  ENG  @0 Supernovae @5 32
N21       @1 205
N44 01      @1 OTO
N82       @1 OTO

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Le document en format XML

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