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arXiv 1306.0205hep-phhep-ex
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126 GeV希格斯玻色子玻色子在顶-跷跷板模型中

126 GeV Higgs boson in the top-seesaw model

Hidenori S. Fukano, Kimmo Tuominen

摘要:

我们考虑了一个建立在顶部跷跷板机制思想上的动力学电弱对称性破缺模型。该模型的特点是第四代矢量状QCD夸克负责的顶部跷跷板机制的起源,并导致顶部和底部夸克质量之间的大分裂的自然解释。受LHC关于希格斯玻色子玻色子耦合的数据的启发,我们将整个第三代标准模型物质场纳入模型。我们确定了低能有效理论和由此产生的低能态谱,并从精确的电弱数据和从标准模型希格斯玻色子的量子数的光标量态的要求的约束条件来约束模型参数。最后,我们进行了全球拟合的模型参数的LHC希格斯数据,并表明该模型是同样可行的标准模型本身,并预测新的国家在LHC访问。

英文摘要:

We consider a model of dynamical electroweak symmetry breaking built on the idea of top-seesaw mechanism. The model features a fourth generation of vector-like QCD quarks responsible for the origin of the top-seesaw mechanism and leading to the natural explanation of the large splitting between the top and bottom quark masses. Motivated by the LHC data on the couplings of the Higgs boson, we include the entire third generation of Standard Model matter fields into the model. We determine the low energy effective theory and the resulting low energy spectrum of states, and constrain the model parameters with constraints from the precision electroweak data and from the requirement of a light scalar state with quantum numbers of the Standard Model Higgs boson. Finally, we perform a global fit of the model parameters to the LHC Higgs data and show that the model is equally viable as the Standard Model itself, and predicts new states accessible at the LHC.

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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