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arXiv 1111.4789hep-lathep-ph
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格点上手征Higgs-Yukawa模型的希格斯玻色子共振宽度

The Higgs boson resonance width from a chiral Higgs-Yukawa model on the lattice

Philipp Gerhold, Karl Jansen, Jim Kallarackal

摘要:

希格斯玻色子是电弱理论的核心部分,对夸克、轻子和弱规范玻色子产生质量至关重要。我们使用4维欧几里德晶格配方的Higgs-Yukawa部门的电弱模型来计算物理量的路径积分的方法,通过蒙特卡罗模拟评估,从而允许完全非微扰计算。利用Neuberger重叠Dirac算子引入了模型的手征对称性。这里考虑的Higgs-Yukawa模型不涉及弱规范玻色子,而且,只有一个简并的顶夸克和底夸克的二重态被纳入。本工作的目的是研究希格斯玻色子玻色子的共振性质及其对四次自耦合强度的敏感性。

英文摘要:

The Higgs boson is a central part of the electroweak theory and is crucial to generate masses for quarks, leptons and the weak gauge bosons. We use a 4-dimensional Euclidean lattice formulation of the Higgs-Yukawa sector of the electroweak model to compute physical quantities in the path integral approach which is evaluated by means of Monte Carlo simulations thus allowing for fully non perturbative calculations. The chiral symmetry of the model is incorporated by using the Neuberger overlap Dirac operator. The here considered Higgs-Yukawa model does not involve the weak gauge bosons and furthermore, only a degenerate doublet of top- and bottom quarks are incorporated. The goal of this work is to study the resonance properties of the Higgs boson and its sensitivity to the strength of the quartic self coupling.

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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