期刊
PHYSICAL REVIEW D
卷 79, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.79.113012
关键词
-
资金
- Spanish [FPA2008-00319/FPA, FPA2008-01935-E/FPA, ILIAS/N6, RII3-CT-2004-506222]
- DFG (Germany) [SFB-676]
Most neutrino mass extensions of the standard electroweak model entail nonstandard interactions which, in the low-energy limit, can be parametrized in term of effective four-fermion operators nu(alpha)nu(beta)ff. Typically of subweak strength epsilon(alpha beta)G(F), these are characterized by dimensionless coupling parameters epsilon(alpha beta), which may be relatively sizable in a wide class of schemes. Here we focus on nonuniversal flavor-conserving couplings (alpha=beta) with electrons (f=e) and analyze their impact on the phenomenology of solar neutrinos. We consistently take into account their effect both at the level of propagation, where they modify the standard Mikheev-Smirnov-Wolfenstein behavior, and at the level of detection, where they affect the cross section of neutrino elastic scattering on electrons. We find limits which are comparable to other existing model-independent constraints.
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