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Electromagnetic form factors of a massive neutrino

机译：大中微子的电磁形状因数

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Electromagnetic form factors of a massive neutrino are studied in a minimally extended standard model in an arbitrary R-xi gauge and taking into account the dependence on the masses of all interacting particles. The contribution from all Feymnan diagrams to the electric, magnetic, and anapole form factors, in which the dependence of the masses of all particles as well as on gauge parameters is accounted for exactly, are obtained for the first time in explicit form. The asymptotic behavior of the magnetic form factor for large negative squares of the momentum of an external photon is analyzed and the expression for the anapole moment of a massive neutrino is derived. The results are generalized to the case of mixing between various flavors of the neutrino. Explicit expressions are obtained for the electric, magnetic, and electric dipole and anapole transitional form factors as well as for the transitional electric dipole moment. (C) 2004 MAIK "Nauka/Interperiodica".
机译：在任意扩展的R-xi量规的最小扩展标准模型中研究了大规模中微子的电磁形状因数，并考虑了对所有相互作用粒子质量的依赖性。首次以显式形式首次获得了所有费南曲线对电，磁和偶极子形状因数的贡献，其中精确地考虑了所有粒子的质量以及量规参数的依赖性。分析了外部光子动量的大负平方的磁形状因数的渐近行为，并推导了大中微子的偶极矩的表达式。结果被推广到中微子的各种风味之间混合的情况。获得了电，磁，电偶极和偶极子过渡形状因数以及过渡电偶极矩的明确表达式。 （C）2004 MAIK“ Nauka / Interperiodica”。

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