6533b852fe1ef96bd12ab8c7

RESEARCH PRODUCT

Neutrino magnetic moments and low-energy solar neutrino-electron scattering experiments

Jose W.f. ValleV. B. SemikozJavier SeguraSergio Pastor

subject

PhysicsNuclear and High Energy PhysicsSterile neutrinoParticle physicsPhysics::Instrumentation and DetectorsSolar neutrinoAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyAstrophysics (astro-ph)FísicaFOS: Physical sciencesSolar neutrino problemAstrophysicsNuclear physicsCosmic neutrino backgroundHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Neutrino detectorMeasurements of neutrino speedHigh Energy Physics::ExperimentNeutrinoNeutrino oscillation

description

The scattering of solar neutrinos on electrons is sensitive to the neutrino magnetic moments through an interference of electromagnetic and weak amplitudes in the cross section. We show that future low-energy solar neutrino experiments with good angular resolution can be sensitive to the resulting azimuthal asymmetries in event number and should provide useful information on non-standard neutrino properties such as magnetic moments. We compare asymmetries expected at HELLAZ (mainly pp neutrinos) with those at the Kamiokande and Super-Kamiokande experiments (Boron neutrinos), both for the case of Dirac and Majorana neutrinos and discuss the advantages of low energies. Potentially interesting information on the solar magnetic fields may be accessible.

https://dx.doi.org/10.48550/arxiv.hep-ph/9803378