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arXiv 1004.4628hep-ph
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反跷跷板模型中中微子参数的重整化群运行

Renormalization group running of neutrino parameters in the inverse seesaw model

Johannes Bergstrom, Michal Malinsky, Tommy Ohlsson, He Zhang

摘要:

我们对反跷跷板模型中的重整化群方程进行了详细的研究。特别是,我们推导出紧凑的解析公式运行的中微子参数的标准模型和最小的超对称标准模型,并说明,由于大汤川耦合修正,显着的运行效果轻子混合角可以自然地获得附近的电弱标度,甚至可能在大型强子对撞机的范围内。一般来说,如果轻中微子的质量谱是近简并的,运行效果增强到实验上可以达到的水平,非常适合于中微子质量产生和轻子味结构背后的动力学研究。此外,对跷跷板阈值的影响进行了讨论,并与其他跷跷板模型进行了简要的比较。

英文摘要:

We perform a detailed study of the renormalization group equations in the inverse seesaw model. Especially, we derive compact analytical formulas for the running of the neutrino parameters in the standard model and the minimal supersymmetric standard model, and illustrate that, due to large Yukawa coupling corrections, significant running effects on the leptonic mixing angles can be naturally obtained in the proximity of the electroweak scale, perhaps even within the reach of the LHC. In general, if the mass spectrum of the light neutrinos is nearly degenerate, the running effects are enhanced to experimentally accessible levels, well suitable for the investigation of the underlying dynamics behind the neutrino mass generation and the lepton flavor structure. In addition, the effects of the seesaw thresholds are discussed, and a brief comparison to other seesaw models is carried out.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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