Leptogenesis and LHC Physics with Type III See-Saw
Leptogenesis and LHC Physics with Type III See-Saw
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DOI：
10.1142/s2010194511000067
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发表时间：
2009-01
期刊：
影响因子：
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通讯作者：
Shao-Long Chen;Xiao-Gang He
中科院分区：
文献类型：
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作者：
Shao-Long Chen;Xiao-Gang He
跷跷板机制提供了一种很好的方法来解释为什么中微子质量比它们的带电轻子伙伴轻得多。它还提供了一种通过轻子发生机制解释宇宙中重子不对称性的好方法。在本次演讲中，我们回顾了 1989 年提出的 See-Saw 模型（现在称为 III 型 See-Saw 模型）中的轻子发生和大型强子对撞机物理学。在此模型中，引入了$SU(2)_L$三重态轻子，三重态轻子中的中性粒子扮演着跷跷板的角色。三重态轻子为合作伙伴提供了标准模型规范相互作用，从而产生了许多新功能。这些粒子的规范相互作用使得低质量（低至TeV）更容易发生轻生。规范相互作用还使得在大型强子对撞机上产生和检测三重态轻子成为可能。跷跷板机制和由 III 型跷跷板引起的轻子发生可能会在大型强子对撞机上进行测试。
The See-Saw mechanism provides a nice way to explain why neutrino masses are so much lighter than their charged lepton partners. It also provides a nice way to explain baryon asymmetry in our universe via the leptogenesis mechanism. In this talk we review leptogenesis and LHC physics in a See-Saw model proposed in 1989, now termed the Type III See-Saw model. In this model, $SU(2)_L$ triplet leptons are introduced with the neutral particles of the triplets playing the role of See-Saw. The triplet leptons have charged partners with standard model gauge interactions resulting in many new features. The gauge interactions of these particles make it easier for leptognesis with low masses, as low as a TeV is possible. The gauge interactions also make the production and detection of triplet leptons at LHC possible. The See-Saw mechanism and leptogenesis due to Type III See-Saw may be tested at LHC.