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arXiv 1502.07574hep-phastro-ph.HE
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复杂单线态的影响:从暗物质到重子生成

Impact of a complex singlet: From dark matter to baryogenesis

Minyuan Jiang, Ligong Bian, Weicong Huang, Jing Shu

摘要:

在复单线态和涉及CP破坏的有效算符的帮助下,我们同时研究了宇宙中的暗物质残余丰度和重子不对称性。系统地研究了电弱重子发生机制。电弱相变分析表明,由于电弱真空与复单态真空之间的能隙的动力学作用,强一级相变以一步或两步方式发生。在电弱重子生成的框架下,探讨了宇宙重子不对称性的大小与相变类型和强度的关系。

英文摘要:

With the assistance of a complex singlet, and an effective operator involving CP violations, the dark matter relic abundance and baryon asymmetry of the universe have been addressed simul- taneously. We studied the electroweak baryogenesis mechanism systematically. The electroweak phase transition analysis indicates that the strong first order phase transition takes place by one- step or two-step type due to the dynamics of the energy gap between the electroweak vacuum and the vacuum of the complex singlet. The relation between the magnitude of baryon asymmetry of the universe and the phase transition type and strength has been explored in the framework of electroweak baryogenesis.

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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