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arXiv 1504.07263hep-phastro-ph.CO
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暗(孪晶)相变产生的引力波

Gravitational Waves From a Dark (Twin) Phase Transition

Pedro Schwaller

摘要:

在这项工作中,我们表明,一个大类的模型与一个复合暗部门经历了强烈的一阶相变在早期宇宙,这可能会导致一个可检测的引力波信号。我们总结了SU(N)暗扇区强一级相变的基本条件,计算了引力波谱,并表明,依赖于暗约束尺度,它可以在eLISA或脉冲星定时阵列实验中检测到。的引力波信号提供了一个独特的测试的引力相互作用的黑暗部门,我们讨论了与传统的搜索新的黑暗部门的互补性。讨论包括双希格斯和SIMP模型,以及对称和非对称的复合暗物质的情况。

英文摘要:

In this work, we show that a large class of models with a composite dark sector undergo a strong first order phase transition in the early universe, which could lead to a detectable gravitational wave signal. We summarise the basic conditions for a strong first order phase transition for SU(N) dark sectors with n_f flavours, calculate the gravitational wave spectrum and show that, depending on the dark confinement scale, it can be detected at eLISA or in pulsar timing array experiments. The gravitational wave signal provides a unique test of the gravitational interactions of a dark sector, and we discuss the complementarity with conventional searches for new dark sectors. The discussion includes Twin Higgs and SIMP models as well as symmetric and asymmetric composite dark matter scenarios.

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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