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arXiv 0906.1834hep-ph
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Q球暗物质的性质:远离平坦方向

Properties of Q-ball dark matter: moving away from flat directions

Ian M. Shoemaker

摘要:

规范介导的超光速破缺模型意味着稳定的Q球可以在早期宇宙中形成,并充当暗物质。MSSM中的所有稳定Q球都与一个或多个平坦方向相关联。我们表明,虽然Q球是从一个平坦的方向凝聚的碎裂产生的,他们很快演变到一个基态,是稍微远离这个平坦的方向。在这个过程中,(B+L)球可以带电。这是一种新的电荷获取形式,对Q球暗物质的实验研究具有重要的影响。

英文摘要:

Gauge-mediated models of supersymmetry-breaking imply that stable Q-balls can form in the early universe and act as dark matter. All stable Q-balls in the MSSM are associated with one or more flat directions. We show that while Q-balls are produced from the fragmentation of a flat direction condensate, they quickly evolve to a ground state that is slightly away from this flat direction. In this process a (B+L)-ball can become electrically charged. This is a novel form of charge acquisition with important ramifications for the experimental search for Q-ball dark matter.

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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