Neutrino Mixing - Particle Data Group - CERN

Citation: K. Nakamura et al. (Particle Data Group), JP G 37, 075021 (2010) and 2011 partial update for the 2012 edition (URL: http://pdg.lbl.gov)
6 AHARMIM 10 obtained this result by a three-neutrino oscillation analysis with the value
of Δm2 31 fixed to 2.3 × 10−3 eV2 , using global solar neutrino data.
7 WENDELL 10 obtained this result by a three-neutrino oscillation analysis with one mass
scale dominance (Δm2 = 0) using the Super-Kamiokande-I+II+III atmospheric neu-
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trino data, and updates the HOSAKA 06A result.
8 The quoted limit is for Δm2 =2.43 × 10
32 −3 eV2 , θ23 = π/2, and δ =0. Forother
values of δ, the 68% CL region spans from 0.02 to 0.26.
9 The quoted limit is for Δm2 =2.43 × 10
32 −3 eV2 , θ23 = π/2, and δ =0. Forother
values of δ, the 68% CL region spans from 0.04 to 0.34.
10 FOGLI 08 obtained this result from a global analysis of all neutrino oscillation data, that
is, solar + KamLAND + atmospheric + accelerator long baseline + CHOOZ.
11 FOGLI 08 obtained this result from an analysis using the solar and KamLAND neutrino
oscillation data.
12 FOGLI 08 obtained this result from an analysis using the atmospheric, accelerator long
baseline, and CHOOZ neutrino oscillation data.
13 YAMAMOTO 06 searched for νμ → νe appearance. Assumes 2 sin2 (2θμe ) =
sin2 (2θ13 ). The quoted limit is for Δm2 32 =1.9 × 10−3 eV2 . That value of Δm2 32 is
the one-σ low value for AHN 06A. FortheAHN06Abest fit value of 2.8 × 10−3 eV2 ,
the sin2 (2θ13 ) limit is < 0.26. Supersedes AHN 04.
14 AHN 04 searched for νμ → νe appearance. Assuming 2 sin2 (2 θμe )=sin2 (2 θ13 ), a
limit on sin2 (2 θμe ) is converted to a limit on sin2 (2 θ13 ).The quoted limit is for Δm2 32
=1.9 × 10−3 eV2 . That value of Δm2 is the one-σ low value for ALIU 05. For the
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ALIU 05 best fit value of 2.8 × 10−3 eV2 ,thesin2 (2 θ13 ) limit is < 0.30.
15 The quoted limit is for Δm2 =1.9 × 10
32 −3 eV2 . That value of Δm2 is the 1-σ low
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value for ALIU 05. For the ALIU 05 best fit value of 2.8×10−3 eV2 ,thesin22θ13 limit
is < 0.19. In this range, the θ13 limit is larger for lower values of Δm2 , and smaller
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forhighervaluesofΔm2 32 .
16 The quoted limit is for Δm2 =1.9 × 10
32 −3 eV2 . That value of Δm2 is the 1-σ low
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value for ALIU 05. For the ALIU 05 best fit value of 2.8 × 10−3 eV2 ,thesin22θ13 limit is < 0.23.
(C) Other neutrino mixing results
The LSND collaboration reported in AGUILAR 01 a signal which is consistent
with νμ → νe oscillations. In a three neutrino framework, this would
be a measurement of θ12 and Δm2 . This does not appear to be consis-
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tent with the interpretation of other neutrino data. The MiniBooNE experiment,
reported in AGUILAR-AREVALO 07, does a two-neutrino analysis
which, assuming CPT conservation, rules out AGUILAR 01. The following
listings include results which might be relevant towards understanding
these observations. They include searches for νμ → νe , νμ → νe , sterile
neutrino oscillations, and CPT violation.
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