标题： 来自手征不变格点希格斯-杨模型的上下希格斯玻色子质量界限 显示英文标题

标题： Upper and lower Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model

摘要： 受大型强子对撞机（LHC）即将问世的推动，本工作的目标是基于第一性原理计算，非微扰地确定标准模型希格斯粒子的依赖于截断的上下质量界限，特别是不依赖于额外的信息，比如希格斯- Yukawa 扇区的平凡性属性或真空稳定性考虑之类的间接论证。 为此目的，采用格点方法来允许对一个手征不变的格点希格斯- Yukawa 模型进行非微扰研究，此模型作为完整标准模型的一个合理简化，仅包含与希格斯玻色子质量测定最相关的场和相互作用。 这些包括复杂的希格斯双线态以及顶夸克和底夸克场及其相互作用。 为了在格点上保持标准模型希格斯-费米子耦合的手征特性，后者模型是基于Neuberger重叠算符构建的，从而遵循精确的整体格点手征对称性。 显示英文摘要

摘要： Motivated by the advent of the Large Hadron Collider the aim of the present work is the non-perturbative determination of the cutoff-dependent upper and lower mass bounds of the Standard Model Higgs boson based on first principle calculations, in particular not relying on additional information such as the triviality property of the Higgs-Yukawa sector or indirect arguments like vacuum stability considerations. For that purpose the lattice approach is employed to allow for a non-perturbative investigation of a chirally invariant lattice Higgs-Yukawa model, serving here as a reasonable simplification of the full Standard Model, containing only those fields and interactions which are most essential for the intended Higgs boson mass determination. These are the complex Higgs doublet as well as the top and bottom quark fields and their mutual interactions. To maintain the chiral character of the Standard Model Higgs-fermion coupling also on the lattice, the latter model is constructed on the basis of the Neuberger overlap operator, obeying then an exact global lattice chiral symmetry.