用MATHUSLA检测隐藏粒子
Detecting Hidden Particles with MATHUSLA
摘要：
一个包含长寿命轻粒子的隐藏扇区为寻找新物理提供了一个很好的动力。最近提出的MATHUSLA实验有可能是非常敏感的轻粒子起源于罕见的介子衰变在很长的寿命区域。在这项工作中，我们说明了这种强度与混合的标准模型，如希格斯玻色子，模型MATHUSLA可以进一步探测未知的参数空间从外来希格斯衰变的光标量的具体例子。应考虑设计增强，以最大限度地提高MATHUSLA发现非常轻的隐藏扇区粒子的能力。
英文摘要：
A hidden sector containing light long-lived particles provides a well-motivated place to find new physics. The recently proposed MATHUSLA experiment has the potential to be extremely sensitive to light particles originating from rare meson decays in the very long lifetime region. In this work, we illustrate this strength with the specific example of a light scalar mixed with the standard model-like Higgs boson, a model where MATHUSLA can further probe unexplored parameter space from exotic Higgs decays. Design augmentations should be considered in order to maximize the ability of MATHUSLA to discover very light hidden sector particles.
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