论文标题
维度八操作员在2HDM的EFT中的作用
Role of dimension-eight operators in an EFT for the 2HDM
论文作者
论文摘要
标准模型有效现场理论（SMEFT）是研究Higgs耦合与标准模型预测的偏差的首选工具。 SMEFT是高维操作员无限塔的扩展，通常在Dimension-6处被截断。我们考虑了包括尺寸-8操作员在内的有效理论，并检查了与2个Higgs Doublet模型（2HDM）的匹配，该模型被认为在某种程度上是有效的。在与2HDM匹配的SMEFT的背景下，考虑了直接生产单个HIGGS玻色子的直接产生和HIGGS三线性耦合的间接限制的限制，并在数字上检查了关于高尺度势力扩展的假设的重要性。
The Standard Model effective field theory (SMEFT) is the tool of choice for studying deviations of Higgs couplings from the Standard Model predictions. The SMEFT is an expansion in an infinite tower of higher dimension operators, which is typically truncated at dimension-6. We consider the effective theory including dimension-8 operators and examine the matching to the 2 Higgs Doublet Model (2HDM) that is assumed to be valid at some high scale. Both the limits from the direct production of single Higgs bosons and the indirect limits on the Higgs tri-linear coupling are considered in the context of the SMEFT matched to the 2HDM, and the importance of the assumptions about the expansions in powers of the high scale are examined numerically.
