格点规范理论复合Higgs模型中辐射对有效势的贡献
Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory
摘要：
我们开发的方法来计算的电弱规范玻色子的有效希格斯势的复合希格斯模型的背景下，使用格点规范理论的贡献。计算结果类似于量子色动力学中π多重态的电磁质量分裂。我们讨论了进行这种计算的技术细节，包括建模的基本电流-电流关联函数的动量和费米子-质量的依赖性;直接集成的关联函数的动量;和适合的最小强子近似的基础上。我们给出了在SU（4）规范理论中用价重叠费米子进行的数值研究的结果，该规范理论在双指数反对称表象中有两种狄拉克费米子。
英文摘要：
We develop methods to calculate the electroweak gauge boson contribution to the effective Higgs potential in the context of composite Higgs models, using lattice gauge theory. The calculation is analogous to that of the electromagnetic mass splitting of the pion multiplet in QCD. We discuss technical details of carrying out this calculation, including modeling of the momentum and fermion-mass dependence of the underlying current-current correlation function; direct integration of the correlation function over momentum; and fits based on the minimal-hadron approximation. We show results of a numerical study using valence overlap fermions, carried out in an SU(4) gauge theory with two flavors of Dirac fermions in the two-index antisymmetric representation.
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