6533b7dafe1ef96bd126f696

RESEARCH PRODUCT

Zenith angle distributions at Super-Kamiokande and SNO and the solution of the solar neutrino problem

Alexei Yu. SmirnovCarlos Pena-garayM. C. Gonzalez-garcia

subject

Nuclear and High Energy PhysicsAstrofísica nuclearmedia_common.quotation_subjectSolar neutrinoSolar neutrinosFOS: Physical sciencesAstrophysicsAstrophysicsAsymmetryPartícules (Física nuclear)High Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Neutrins solarsNeutrino oscillationZenithParametric statisticsmedia_commonParticles (Nuclear physics)PhysicsSistema solarAstrophysics (astro-ph)FísicaSolar neutrino problemHigh Energy Physics - PhenomenologyDistribution (mathematics)High Energy Physics::ExperimentNuclear astrophysicsSuper-KamiokandeSolar system

description

We have performed a detailed study of the zenith angle dependence of the regeneration factor and distributions of events at SNO and SK for different solutions of the solar neutrino problem. In particular, we discuss oscillatory behaviour and the synchronization effect in the distribution for the LMA solution, the parametric peak for the LOW solution, etc.. Physical interpretation of the effects is given. We suggest a new binning of events which emphasizes distinctive features of zenith angle distributions for the different solutions. We also find the correlations between the integrated day-night asymmetry and the rates of events in different zenith angle bins. Study of these correlations strengthens the identification power of the analysis.

10.1103/physrevd.63.113004http://hdl.handle.net/2445/12510