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arXiv 2108.07030hep-phastro-ph.HE
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蓬松暗物质的真实散射

The Realistic Scattering of Puffy Dark Matter

Wenyu Wang, Wu-Long Xu, Bin Zhu

备注：
5 pages, 3 figure
发表信息：
Phys.Rev.D 105 (2022) 7, 075013
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摘要：

如果暗物质具有有限的尺寸，则从暗物质自散射的角度来看，负责结构形成的内在相互作用是不可避免的。为了描述束缚力实现有限尺寸暗质子的情况，我们首先利用Eikonal近似将暗质子间的卷积散射简化为$t=0$极限下的情形.然后引入Chou-Yang模型，基于简单性和解析性原则将输入参数的数量减少到一个。给出了速度依赖性的一个新的定义，以及相应的对周杨暗质子小宇宙结构的影响。即使参数空间没有完全覆盖，数值结果表明，振幅系数可以改变自散射截面，使我们能够恢复排除的参数空间，而不使用约束力。最后，我们证明了正确的遗物密度从热冻结生产更喜欢超重暗质子。

英文摘要：

If dark matter has a finite size, the intrinsic interaction responsible for the structure formation is inevitable from the perspective of dark matter self-scattering. To describe the circumstance in which the binding force realizes the finite size dark protons, we first use the Eikonal approximation to simplify the convoluted scattering between dark protons into the case at the $t=0$ limit. The Chou-Yang model is then introduced to reduce the number of input parameters to one based on the simplicity and analyticity principle. A new definition of velocity dependence and the corresponding implications on the small cosmological structures from Chou-Yang dark protons are shown clearly. Even though the parameter space is not fully covered, the numerical findings show that the amplitude coefficient can alter the self-scattering cross-section, allowing us to recover the excluded parameter space without using binding force. Finally, we demonstrate that the correct relic density from thermal freeze-out production prefers super heavy dark protons.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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