Solar Neutrinos Before and After KamLAND
Author(s) -
John N. Bahcall,
M. C. González-García,
C. PeñaGaray
Publication year - 2003
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2003/02/009
Subject(s) - physics , solar neutrino , flux (metallurgy) , solar neutrino problem , neutrino , neutrino oscillation , oscillation (cell signaling) , sigma , standard solar model , particle physics , standard model (mathematical formulation) , mixing (physics) , sterile neutrino , astrophysics , astronomy , chemistry , quantum mechanics , archaeology , gauge (firearms) , history , biochemistry , organic chemistry
We use the recently reported KamLAND measurements on oscillations of reactoranti-neutrinos, together with the data of previously reported solar neutrinoexperiments, to show that: (1) the total 8B neutrino flux emitted by the Sun is1.00(1.0 \pm 0.06) of the standard solar model (BP00) predicted flux, (2) theKamLAND measurements reduce the area of the globally allowed oscillationregions that must be explored in model fitting by six orders of magnitude inthe Delta m^2-tan^2 theta plane, (3) LMA is now the unique oscillation solutionto a CL of 4.7sigma, (4) maximal mixing is disfavored at 3.1 sigma, (5)active-sterile admixtures are constrained to sin^2 eta<0.13 at 1 sigma, (6) theobserved ^8B flux that is in the form of sterile neutrinos is0.00^{+0.09}_{-0.00} (1 sigma), of the standard solar model (BP00) predictedflux, and (7) non-standard solar models that were invented to completely avoidsolar neutrino oscillations are excluded by KamLAND plus solar at 7.9 sigma .We also refine quantitative predictions for future 7Be and p-p solar neutrinoexperiments.Comment: Published version, includes editorial improvement
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