Solar Neutrinos Before and After KamLAND

2002/12/31 by John N. Bahcall, M. C. González-García, M. C. Gonzalez-Garcia +2 · 5 citations
Chemistry · Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Chemistry #Flux (metallurgy) #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Oscillation (cell signaling) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Sigma #Solar neutrino #Solar neutrino problem #Standard Model (mathematical formulation) #Standard solar model #Sterile neutrino #astro-ph #hep-ex #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1088/1126-6708/2003/02/009

published as JHEP 0302:009,2003 · Published version, includes editorial improvements

arxiv created 2003/02/05 · openalex publication_date 2003/02/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We use the recently reported KamLAND measurements on oscillations of reactor anti-neutrinos, together with the data of previously reported solar neutrino experiments, to show that: (1) the total 8B neutrino flux emitted by the Sun is 1.00(1.0 ± 0.06) of the standard solar model (BP00) predicted flux, (2) the KamLAND measurements reduce the area of the globally allowed oscillation regions that must be explored in model fitting by six orders of magnitude in the Delta m²-tan² theta plane, (3) LMA is now the unique oscillation solution to a CL of 4.7sigma, (4) maximal mixing is disfavored at 3.1 sigma, (5) active-sterile admixtures are constrained to sin² eta<0.13 at 1 sigma, (6) the observed ⁸B flux that is in the form of sterile neutrinos is 0.00^+0.09_-0.00 (1 sigma), of the standard solar model (BP00) predicted flux, and (7) non-standard solar models that were invented to completely avoid solar neutrino oscillations are excluded by KamLAND plus solar at 7.9 sigma . We also refine quantitative predictions for future 7Be and p-p solar neutrino experiments.

Citations

• Review of Particle Physics
• Searches for sterile component with solar neutrinos and KamLAND
• Testing the solar LMA region with KamLAND data
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• On the effect of θ13 on the determination of solar oscillation parameters at KamLAND
• KamLAND and the determination of neutrino mixing parameters in the post SNO-NC era
• Imprint of SNO neutral current data on the solar neutrino problem
• Neutrino-deuteron scattering in effective field theory at next-to-next-to-leading order
• How accurately can one test CPT conservation with reactor and solar neutrino experiments?
• Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters
• Solving the Solar Neutrino Puzzle with KamLAND and Solar Data
• Measurement of the Rate ofνe+d→p+p+e−Interactions Produced byB<mml:mprescripts/>8Solar Neutrinos at the Sudbury Neutrino Observatory
• Solar Models: Current Epoch and Time Dependences, Neutrinos, and Helioseismological Properties
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Review of particle properties

Cited by

• A road map to solar neutrino fluxes, neutrino oscillation parameters, and tests for new physics
• From weak-scale observables to leptogenesis
• LMA and sterile neutrinos: a case for resonance spin flavour precession
• Protecting the primordial baryon asymmetry in the seesaw model compatible with WMAP and KamLAND
• Question of hierarchy: Matter effects with atmospheric neutrinos and antineutrinos