Impact of Q-balls formed by first-order phase transition on sterile neutrino dark matter

被引：0
|
作者：
Ma, Jiucheng [1 ,2 ]
Jiang, Siyu [1 ,2 ]
Li, Xiu-Fei [3 ]
机构：
[1] Sun Yat Sen Univ, MOE Key Lab TianQin Mission, TianQin Res Ctr Gravitat Phys, Frontiers Sci Ctr TianQin,Gravitat Wave Res Ctr CN, Zhuhai Campus, Zhuhai 519082, Peoples R China
[2] Sun Yat Sen Univ, Frontiers Sci Ctr TianQin, Gravitat Wave Res Ctr CNSA, Sch Phys & Astron, Zhuhai Campus, Zhuhai 519082, Peoples R China
[3] Inner Mongolia Univ, Sch Phys Sci & Technol, Hohhot 010021, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 10期
关键词：
Dark Matter;
D O I：
10.1140/epjc/s10052-024-13380-7
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We explore the mechanism that can explain the production of lepton asymmetry and two types of sterile neutrino dark matter. The first type involves heavy sterile dark matter produced directly by the decay of Q-balls which are formed by first-order phase transition in the early universe; the second consists of keV sterile neutrino dark matter, produced resonantly with the aid of lepton asymmetry from Q-ball decay. Besides, gravitational waves from cosmic strings generated during the phase transition process could be detected at future interferometers.
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页数：12
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