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arXiv 0807.4313hep-ph
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重子和暗物质的统一起源

Unified origin of baryons and dark matter

Ryuichiro Kitano, Hitoshi Murayama, Michael Ratz

摘要:

我们研究了宇宙的重子不对称性和观测到的冷暗物质密度都是由核合成前主导宇宙的重标量场衰变产生的可能性。由于重子和冷暗物质有共同的起源,这个机制产生了一个自然的解释,对应的能量密度的相似性。避免了宇宙学模和引力子问题。

英文摘要:

We investigate the possibility that both the baryon asymmetry of the universe and the observed cold dark matter density are generated by decays of a heavy scalar field which dominates the universe before nucleosynthesis. Since baryons and cold dark matter have common origin, this mechanism yields a natural explanation of the similarity of the corresponding energy densities. The cosmological moduli and gravitino problems are avoided.

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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