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arXiv 2005.11540hep-ph
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矢量暗物质直接探测的NLO修正--更新

NLO corrections to Vector Dark Matter Direct Detection -- An update

Seraina Glaus, Margarete Mühlleitner, Jonas Müller, Shruti Patel, Rui Santos

摘要:

在这项工作中,我们提出了一个更新到以前的计算下一个领先的顺序(NLO)校正矢量暗物质(VDM)直接检测截面。所研究的模型是标准模型(SM)的最小扩展,具有一个额外的矢量玻色子和一个额外的复标量场,其中矢量是DM候选。本文计算了VDM粒子与核子散射的自旋无关截面。我们现在提供一个更新的非线性光学截面的DM粒子的直接检测。我们进一步讨论了直接探测DM实验的灵敏度的非线性光学校正的唯象意义。

英文摘要:

In this work we present an update to a previous calculation of the Next-to-Leading Order (NLO) corrections to the Vector Dark Matter (VDM) direct detection cross section. The model under investigation is a minimal extension of the Standard Model (SM) with one extra vector boson and one extra complex scalar field, where the vector is the DM candidate. We have computed the spin-independent cross section for the scattering of the VDM particle with a nucleon. We now provide an update to the NLO cross section for the direct detection of the DM particle. We further discuss the phenomenological implications of the NLO corrections for the sensitivity of the direct detection DM experiments.

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