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arXiv 0705.0554hep-ph
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线性对撞机上的费米子有效算符和Higgs产生

Fermionic Effective Operators and Higgs Production at a Linear Collider

Jennifer Kile, Michael J. Ramsey-Musolf

摘要:

我们研究了在500 GeV或1 TeV的$e^+e^-$直线对撞机上,包含费米子场的六维算符对Higgs产生的可能贡献.我们表明,-取决于生产机制-这些运营商的影响,可以在运动学上增强相对于标准模型(SM)的贡献。我们确定现有的精密电弱测量和中微子质量的规模所隐含的运营商系数的约束。我们发现,即使存在这样的限制,从SM希格斯生产截面的实质性偏差是可能的。我们比较费米子运营商与那些与纯玻色子运营商,以前已经在文献中讨论的影响。

英文摘要:

We study the possible contributions of dimension six operators containing fermion fields to Higgs production at a 500 GeV or 1 TeV $e^+e^-$ linear collider. We show that -- depending on the production mechanism -- the effects of such operators can be kinematically enhanced relative to Standard Model (SM) contributions. We determine constraints on the operator coefficients implied by existing precision electroweak measurements and the scale of neutrino mass. We find that even in the presence of such constraints, substantial deviations from SM Higgs production cross-sections are possible. We compare the effects of fermionic operators with those associated with purely bosonic operators that have been previously discussed in the literature.

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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