Conformal symmetry and the Standard Model
Conformal symmetry and the Standard Model
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DOI：
10.1016/j.physletb.2007.03.023
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发表时间：
2007-05-10
影响因子：
4.4
通讯作者：
Nicolai, Hermann
中科院分区：
文献类型：
--
作者：
Meissner, Krzysztof A.;Nicolai, Hermann
我们重新研究了在右手征中微子和一个最小放大的标量扇区存在的情况下标准模型中的辐射对称性破缺问题。我们证明，有了这些额外的成分，经典的不间断共形对称性的假设，除了自然地引入和稳定一个层次之外，与所有可用的数据都是兼容的；特别是，存在一组参数，对于这些参数，模型甚至可以保持到普朗克尺度。额外标量场的衰变模式提供了该模型的独特特征，可以在大型强子对撞机上进行测试。(C)2007 Elsevier B.V.保留所有权利。
We re-examine the question of radiative symmetry breaking in the Standard Model in the presence of right-chiral neutrinos and a minimally enlarged scalar sector. We demonstrate that, with these extra ingredients, the hypothesis of classically unbroken conformal symmetry, besides naturally introducing and stabilizing a hierarchy, is compatible with all available data; in particular, there exists a set of parameters for which the model may remain viable even up to the Planck scale. The decay modes of the extra scalar field provide a unique signature of this model which can be tested at LHC. (C) 2007 Elsevier B.V. All rights reserved.