6533b857fe1ef96bd12b4ef6
RESEARCH PRODUCT
Constraining the neutrino magnetic moment with anti-neutrinos from the Sun
José W. F. ValleA. I. RezT. I. RashbaO. G. Mirandasubject
PhysicsParticle physicsMagnetic momentSolar energetic particlesSolar neutrinoHigh Energy Physics::PhenomenologyAstrophysics (astro-ph)General Physics and AstronomyFluxFísicaFOS: Physical sciencesSolar neutrino problemAstrophysicsMagnetic fieldNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Physics::Space PhysicsAstrophysics::Solar and Stellar AstrophysicsHigh Energy Physics::ExperimentNeutrinoNeutrino oscillationdescription
We discuss the impact of different solar neutrino data on the spin-flavor-precession (SFP) mechanism of neutrino conversion. We find that, although detailed solar rates and spectra allow the SFP solution as a sub-leading effect, the recent KamLAND constraint on the solar antineutrino flux places stronger constraints to this mechanism. Moreover, we show that for the case of random magnetic fields inside the Sun, one obtains a more stringent constraint on the neutrino magnetic moment down to the level of \mu_\nu \lsim few \times 10^{-12}\mu_B, similar to bounds obtained from star cooling.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-11-03 |