Constraining the neutrino magnetic moment with antineutrinos from the sun

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 subleading effect, the recent KamLAND constraint on the solar antineutrino flux places stro...

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Bibliographic Details
Published in:Physical review letters 2004-07, Vol.93 (5), p.051304.1-051304.4, Article 051304
Main Authors: MIRANDA, O. G, RASHBA, T. I, REZ, A. I, VALLE, J. W. F
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Electric and magnetic moments
Electromagnetic processes and properties
Exact sciences and technology
Nuclear astrophysics
Nuclear physics
Physics
Solar interior
Solar neutrinos
Solar physics
Solar system
Specific reactions and phenomenology
The physics of elementary particles and fields
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Summary: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 subleading effect, the recent KamLAND constraint on the solar antineutrino flux places stronger constraints on 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)< or = few x 10(-12)mu(B), similar to bounds obtained from star cooling.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.93.051304