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arXiv 1206.4053hep-phhep-th
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超对称中的部分复合希格斯粒子

Partially Composite Higgs in Supersymmetry

Ryuichiro Kitano, Markus A. Luty, Yuichiro Nakai

摘要:

我们提出了一个框架自然破缺的电弱对称性的超对称模型,其中基本希格斯场半微扰耦合到一个强超共形部门。在TeV尺度下,希格斯的VEV在强扇区中破坏了共形对称性,而强扇区反过来又对希格斯势做出了重要贡献,从而产生了一种希格斯自举。一个质量为$125\GeV$的希格斯粒子不需要任何微调就可以被容纳。在这些模型中也动态地产生了希格斯质量级的希格斯诺质量。强扇区中的质量通常违反保管对称性,并且良好的精确电弱拟合需要$\sim 10%$阶的调谐。强扇区在TeV尺度上有一个近似超对称的强子谱,可以通过寻找$WZ$不变质量分布中的峰值以及包含多个$W$、$Z$和希格斯玻色子的终态来观察。该模型通常还预测对$h \to \ga\ga$宽度的大的校正(增强或抑制)。

英文摘要:

We propose a framework for natural breaking of electroweak symmetry in supersymmetric models, where elementary Higgs fields are semi-perturbatively coupled to a strong superconformal sector. The Higgs VEVs break conformal symmetry in the strong sector at the TeV scale, and the strong sector in turn gives important contributions to the Higgs potential, giving rise to a kind of Higgs bootstrap. A Higgs with mass $125\GeV$ can be accommodated without any fine tuning. A Higgsino mass of order the Higgs mass is also dynamically generated in these models. The masses in the strong sector generically violate custodial symmetry, and a good precision electroweak fit requires tuning of order $\sim 10%$. The strong sector has an approximately supersymmetric spectrum of hadrons at the TeV scale that can be observed by looking for a peak in the $WZ$ invariant mass distribution, as well as final states containing multiple $W$, $Z$, and Higgs bosons. The models also generically predict large corrections (either enhancement or suppression) to the $h \to \ga\ga$ width.

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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