论文标题
HIGGS门户网站上的LSND限制
LSND Constraints on the Higgs Portal
论文作者
论文摘要
高光度固定目标实验对新的光弱耦合度的自由度提供了令人印象深刻的敏感性。我们重新审视了标量单元$ s $耦合到标准模型的最小情况，该型号通过Higgs门户网站可见衰减到Di-pion阈值以下的标量质量上的瘦素。发现LSND实验的数据集发现在$ M_S \ SIM \ SIM 100 $和350 MEV之间施加了主要限制。在此过程中，我们分析了目标中的许多标量生产通道，发现Proton Bremsstrahlung在LSND束能量下提供了主要的通道。
High-luminosity fixed target experiments provide impressive sensitivity to new light weakly coupled degrees of freedom. We revisit the minimal case of a scalar singlet $S$ coupled to the Standard Model through the Higgs portal, that decays visibly to leptons for scalar masses below the di-pion threshold. The dataset from the LSND experiment is found to impose the leading constraints within two mass windows between $m_S \sim 100$ and 350 MeV. In the process, we analyze a number of scalar production channels in the target, finding that proton bremsstrahlung provides the dominant channel at LSND beam energies.
