论文标题
将SMEFT映射到可发现的模型
Mapping the SMEFT to discoverable models
论文作者
论文摘要
将特定的新物理场景匹配到SMEFT框架上是一个很好的过程。逆问题，SMEFT与紫外线场景的匹配更加困难，需要开发新方法来进行系统探索。在本文中，我们使用一种示意技术以自动化的方式构造一组可能的紫外线模型（给定某些特定的假设），该模型可以生产特定的SMEFT操作员组，并通过生成对四率（4F）操作员的树水平贡献的模型来说明其使用。这些场景仅以一环顺序贡献4F，可以包含相对较轻的颗粒，这些颗粒可以在直接搜索中在LHC上发现。对于这类模型，我们在间接SMEFT和直接搜索之间找到了一个有趣的相互作用。我们讨论了一些示例，介绍了将低能观测值与Smeft Higgs-Fermion分析和在LHC的共鸣进行搜索时的相互作用。
The matching of specific new physics scenarios onto the SMEFT framework is a well-understood procedure. The inverse problem, the matching of the SMEFT to UV scenarios, is more difficult and requires the development of new methods to perform a systematic exploration of models. In this paper we use a diagrammatic technique to construct in an automated way a complete set of possible UV models (given certain, well specified assumptions) that can produce specific groups of SMEFT operators, and illustrate its use by generating models with no tree-level contributions to four-fermion (4F) operators. Those scenarios, which only contribute to 4F at one-loop order, can contain relatively light particles that could be discovered at the LHC in direct searches. For this class of models, we find an interesting interplay between indirect SMEFT and direct searches. We discuss some examples on how this interplay would look like when combining low-energy observables with the SMEFT Higgs-fermion analyses and searches for resonance at the LHC.
