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arXiv 1407.2882hep-phastro-ph.COgr-qc
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引力波作为SUSY尺度的探测器

Gravitational waves as a probe of SUSY scale

Ayuki Kamada, Masaki Yamada

摘要:

我们调查了超对称理论中平坦方向的哈勃诱导质量的来源,并表明哈勃诱导质量的符号通常在膨胀结束后发生变化。这意味着,在大多数超对称模型中,包括最小超对称标准模型,整体宇宙弦通常在暴胀结束后形成。宇宙弦发出频率与哈勃尺度相对应的引力波,直到哈勃参数减小到扁平方向的软质量时,引力波消失。结果表明,引力波的峰值频率与超对称尺度有关。对这个引力波信号的观测将为我们提供超对称尺度和再加热温度的信息。

英文摘要:

We investigate the sources of the Hubble-induced mass for a flat direction in supersymmetric theories and show that the sign of the Hubble-induced mass generally changes just after the end of inflation. This implies that global cosmic strings generally form after the end of inflation in most supersymmetric models, including the Minimal Supersymmetric Standard Model. The cosmic strings emit gravitational waves whose frequency corresponds to the Hubble scale, until they disappear when the Hubble parameter decreases down to the soft mass of the flat direction. As a result, the peak frequency of gravitational waves is related to the supersymmetric scale. The observation of this gravitational wave signal will give us information of supersymmetric scale and reheating temperature.

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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