论文标题
通过费米恩门户的轻度黑暗部门
Light Dark Sectors through the Fermion Portal
论文作者
论文摘要
对成对的标准模型费米子形成了尺寸-3单元操作员，可以将它们搭配到新的黑暗扇区状态。该“费米恩门户”将与较低维的希格斯，矢量和中微子单人门户形成鲜明对比。我们表征了其独特的现象学，并将有效的场理论界定在该框架上，重点介绍了Fermion门户网站上的一对浅色黑暗扇区费米子。我们从各种介子衰减实验，缺失的能量和长寿粒子搜索以及天体物理和宇宙学界限中获得了尺寸6有效算子尺度的当前和投影限制。 Darkeft公共代码可用于重塑这些限制，我们用各种示例说明了这些限制，包括集成的重型深色光子。
Pairs of Standard Model fermions form dimension-3 singlet operators that can couple to new dark sector states. This "fermion portal" is to be contrasted with the lower-dimensional Higgs, vector and neutrino singlet portals. We characterise its distinct phenomenology and place effective field theory bounds on this framework, focusing on the case of fermion portals to a pair of light dark sector fermions. We obtain current and projected limits on the dimension-6 effective operator scale from a variety of meson decay experiments, missing energy and long-lived particle searches at colliders, as well as astrophysical and cosmological bounds. The DarkEFT public code is made available for recasting these limits, which we illustrate with various examples including an integrated-out heavy dark photon.
