论文标题
半黑色希格斯衰减：扫式希格斯中微子地板
Semi-dark Higgs decays: sweeping the Higgs neutrino floor
论文作者
论文摘要
我们研究异国情调的希格斯衰减$ h \ to z x $，$ x $一个不可见的标准型号（SM）粒子，导致半黑暗的最终状态。这种异国情调的希格斯衰变可能发生在轴突样粒子（阿尔卑斯山），SM和暗物质之间的黑暗光子或伪级介体中。 SM过程$ h \ tozν\barν$代表了这些新物理搜索的不可约的“中微子地板”背景，也为它们提供了目标实验性敏感性。我们在LHC和未来的ILC上分析了$ h \ text {Invisible} $搜索，表明这些异国情调的希格斯衰减可以对阿尔卑斯山和暗物质模型的参数空间的未开发区域产生敏感性。
We study exotic Higgs decays $h \to Z X$, with $X$ an invisible beyond the Standard Model (SM) particle, resulting in a semi-dark final state. Such exotic Higgs decays may occur in theories of axion-like-particles (ALPs), dark photons or pseudoscalar mediators between the SM and dark matter. The SM process $h\to Zν\barν$ represents an irreducible "neutrino floor" background to these new physics searches, providing also a target experimental sensitivity for them. We analyze $h \to Z + \text{invisible}$ searches at the LHC and a future ILC, showing that these exotic Higgs decays can yield sensitivity to unexplored regions of parameter space for ALPs and dark matter models.
