电弱单态通过希格斯门户的直接信号
高能物理 - 唯象学
2019-01-23 v2
摘要
我们回顾了在标准热冻结产生假设下,希格斯门户暗物质产生核反冲信号的预言与约束。热产生的标量及矢量希格斯门户暗物质质量被约束在靠近希格斯质量一半的共振区或数 TeV 以上。这些模型的共振区将由 XENONnT 与 LZ 检验。直至幺正极限的整个质量区间可由 DarkSide-20k 与 DARWIN 检验。具有纯 CP 奇耦合的费米子希格斯门户暗物质受希格斯衰变宽度约束,但其反冲截面被强烈压低,无法由即将到来的实验检验。具有 CP 偶与奇希格斯耦合组合的费米子希格斯门户暗物质则可受直接搜寻实验约束。
引用
@article{arxiv.1804.02604,
title = {Direct signals from electroweak singlets through the Higgs portal},
author = {Rainer Dick},
journal= {arXiv preprint arXiv:1804.02604},
year = {2019}
}
备注
V2: Final version. References added and exclusion limits also reported for a Higgs-nucleon coupling gv_h = 289 MeV in addition to the SVZ value gv_h = 210 MeV. Additional remarks on the unitarity limit, and on annihilation cross sections and the partial Higgs decay width in the vector Higgs portal model are also included