Asymmetric dark matter and Sommerfeld enhancement

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外文摘要：We study the relic density of asymmetric dark matter with long-range interactions by considering the Sommerfeld effect.We find that the annihilation cross section of asymmetric dark matter is enhanced by the Sommerfeld effect and thus the relic density is decreased.Then we use the Planck data to constrain the asymmetry factor,coupling,and to derive the upper bounds on the dark matter mass in s-wave and p-wave annihilation cases.

外文关键词：

asymmetric dark matterrelic densitySommerfeld enhancement

作者：

Sujuan Qiu、Hoernisa Iminniyaz、Wensheng Huo

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作者单位：

School of Physics Science and Technology,Xinjiang University,Urumqi 830017,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Xinjiang Uygur Autonomous Region

项目编号：

U203120411 765 0212022D01C52

出版年：

2024

DOI：

10.1088/1572-9494/ad4bba

理论物理通讯(英文版)

中国科学院理论物理研究所中国物理学会

理论物理通讯(英文版)

CSTPCD

影响因子：0.333

ISSN：0253-6102

年,卷(期)：2024.76(8)