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arXiv 1004.0884hep-ph
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$μν$ SSM中的跷跷板机制

The seesaw mechanism in the $μν$SSM

Daniel E. Lopez-Fogliani

摘要:

$μν$ SSM建议使用右手中微子超多重态,以便同时产生$μ$项和中微子质量。我们讨论了中微子物理和相关的电弱跷跷板机制在这个模型。我们展示了如何从$μν$ SSM的中性中微子-中微子质量矩阵得到有效中微子质量矩阵。特别是,我们讨论了这个矩阵的某些限制,澄清中微子部门的行为模型。我们还表明,目前的中微子质量和混合角的数据可以很容易地复制。这些限制甚至可以满足对角中微子汤川矩阵,因为这个跷跷板不仅涉及右手中微子,而且还涉及MSSM中性子。由于这个跷跷板的以下特点,获得正确的中微子角变得很容易:R宇称被打破,相关的标度是电弱标度。

英文摘要:

The $μν$SSM proposes to use right-handed neutrino supermultiplets in order to generate the $μ$ term and neutrino masses simultaneously. We discuss neutrino physics and the associated electroweak seesaw mechanism in this model. We show how to obtain, from the neutralino-neutrino mass matrix of the $μν$SSM, the effective neutrino mass matrix. In particular we discuss certain limits of this matrix that clarify the neutrino-sector behavior of the model. We also show that current data on neutrino masses and mixing angles can easily be reproduced. These constraints can be fulfilled even with a diagonal neutrino Yukawa matrix, since this seesaw does not involve only the right-handed neutrinos but also the MSSM neutralinos. To obtain the correct neutrino angles turns out to be easy due to the following characteristics of this seesaw: R-parity is broken and the relevant scale is the electroweak one.

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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