arXiv 2405.033252024-05-06hep-ph

具有压低暗物质-原子核弹性截面的暗物质模型

Dark matter models with suppressed dark matter nuclei elastic cross section

N. V. Krasnikov

备注：: 12 pages

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AI总结：

本文提出两种推广的暗光子模型，通过非局域形状因子或引入与B-L流耦合的Z'玻色子来压低暗物质-原子核弹性散射截面，同时保持加速器暗物质探测预言不被额外压低。

摘要：

我们提出暗光子模型的两种推广，它们预言了与暗光子模型相应预言相比被压低的暗物质-原子核弹性散射截面。在第一个模型中，与暗光子模型的主要区别在于混合参数 $ε$ 是非局域形状因子 $ε(q^2)= \frac{q^2}{Λ^2}V(\frac{q^2}{Λ^2})$，它依赖于动量转移平方 $q^2$。这里 $V(\frac{q^2}{Λ^2})$ 是增长阶为 $ρ\geq \frac{1}{2}$ 的整函数，$Λ$ 是非局域尺度。在该模型中，我们的世界和暗世界由可重整化场论描述，而它们之间的通信通过非局域相互作用实现。第二个模型是可重整化模型，其中除了暗光子场 $A'$ 之外，额外的矢量玻色子 $Z'$ 与 $B - L$ 流相互作用。我们的世界和暗世界之间的通信通过 $Z'$ 和 $A'$ 场之间的非零动力学混合实现。这些模型对于在加速器上寻找暗物质的预言不包含额外的压低因子。

英文摘要：

We propose two generalizations of the dark photon model which predict the suppressed elastic dark matter nuclei cross section in comparison with the corresponding prediction of the dark photon model. In the first model the main difference from dark photon model is that the mixing parameter $ε$ is nonlocal formfactor $ε(q^2)= \frac{q^2}{Λ^2}V(\frac{q^2}{Λ^2}) $ depending on the square of the momentum transfer $q^2$. Here $V(\frac{q^2}{Λ^2})$ is an entire function of the growth $ρ\geq \frac{1}{2}$ and $Λ$ is nonlocal scale. In this model our world and dark world are described by renormalizable field theories while the communication between them is performed by nonlocal interaction. The second model is renormalizable model where besides dark photon field $A'$ additional vector boson $Z'$ interacts with $B - L$ current. The communication between our world and dark world is performed due to nonzero kinetic mixing between $Z'$ and $A'$ fields. The predictions of the models for the search for dark matter at the accelerators don't contain additional suppression factors.

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