Probing nonstandard neutrino-electron interactions with solar and reactor neutrinos

被引:90
作者
Bolanos, A. [1 ]
Miranda, O. G. [1 ]
Palazzo, A. [3 ]
Tortola, M. A. [2 ]
Valle, J. W. F. [3 ]
机构
[1] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico
[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany
[3] Univ Valencia, CSIC, Inst Fis Corpuscular, AHEP Grp, E-46071 Valencia, Spain
来源
PHYSICAL REVIEW D | 2009年 / 79卷 / 11期
关键词
MASSLESS NEUTRINOS; DENSITY PERTURBATIONS; RESONANT CONVERSION; OSCILLATIONS; VIOLATION; MATTER; SUPERSYMMETRY; NONCONSERVATION; FLUCTUATIONS; MODELS;
D O I
10.1103/PhysRevD.79.113012
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页数:9
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