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Angular distribution of electrons in neutrinoless double-beta decay and new physics

机译:无中微子双β衰变中电子的角分布和新物理学

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摘要

For neutrinoless double-beta decay caused by the exchange of light Majorana neutrinos, all expression for the differential width with respect to the angle between the final-electron momenta is obtained on the basis of a Lorentz-invariant effective Lagrangian of the general form. The shape of this angular distribution is analyzed within Various extensions of the Standard Model that allow this process-ill particular, within theories that involve Majorana superpartners and (or) right-handed Currents. The angular correlation coefficient for electrons as a function of the mass of the right-handed W boson and the effective Majorana neutrino mass in the decay of the Ge-76 nucleus is considered within the model involving left-right symmetry.
机译:对于由光马约拉纳中微子的交换引起的无中微子双β衰变,基于一般形式的Lorentz不变有效拉格朗日方程,获得了相对于最终电子动量角之间的微分宽度的所有表达式。在涉及Majorana超级合作伙伴和(或)右手潮流的理论的标准模型的各种扩展中,分析了这种角度分布的形状,这些扩展允许出现这种过程不适。在涉及左右对称性的模型中,考虑了电子的角度相关系数,它是右旋玻色子质量和Ge-76核衰变中有效马约拉纳中微子质量的函数。

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