New probe of naturalness.
New probe of naturalness.
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DOI：
10.1103/physrevlett.111.121803
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发表时间：
2013-05
影响因子：
8.6
通讯作者：
N. Craig;C. Englert;M. McCullough
中科院分区：
文献类型：
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作者：
N. Craig;C. Englert;M. McCullough
任何新的标量场通过稳定希格斯玻色子质量而微扰地解决了等级问题，也会对希格斯玻色子场强重整化产生新的贡献，而不管它们的规范表示是什么。这些新的贡献是物理的，在显式模型中，它们的大小可以从二次发散消除的要求中推断出来;因此，它们直接关系到层次问题的解决。在规范地规范化希格斯场后，这些新的贡献导致希格斯耦合的修改，这些修改通常足够大，以至于可以在精确的希格斯玻色子程序中彻底探讨层次问题和电弱自然性的概念。具体来说，在轻子对撞机上，这可以通过精确测量希格斯玻色子相关的产生截面来实现。这将导致间接限制微扰解决方案的最广泛意义上的层次问题，即使相关的新领域的规范单。
Any new scalar fields that perturbatively solve the hierarchy problem by stabilizing the Higgs boson mass also generate new contributions to the Higgs boson field-strength renormalization, irrespective of their gauge representation. These new contributions are physical, and in explicit models their magnitude can be inferred from the requirement of quadratic divergence cancellation; hence, they are directly related to the resolution of the hierarchy problem. Upon canonically normalizing the Higgs field, these new contributions lead to modifications of Higgs couplings that are typically great enough that the hierarchy problem and the concept of electroweak naturalness can be probed thoroughly within a precision Higgs boson program. Specifically, at a lepton collider this can be achieved through precision measurements of the Higgs boson associated production cross section. This would lead to indirect constraints on perturbative solutions to the hierarchy problem in the broadest sense, even if the relevant new fields are gauge singlets.