The Anthropic principle and the mass scale of the standard model
The Anthropic principle and the mass scale of the standard model
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DOI：
10.1103/physrevd.57.5480
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发表时间：
1997-07
影响因子：
5
通讯作者：
V. Agrawal;S. Barr;J. Donoghue;D. Seckel
中科院分区：
文献类型：
--
作者：
V. Agrawal;S. Barr;J. Donoghue;D. Seckel
在宇宙的不同区域可以有不同的物理参数值的理论中，我们自然会发现自己处于一个具有有利于生命的参数的区域。我们探索了希格斯势中质量参数μ 2的人类学允许值的范围。对于μ 2 0，重子稳定性要求：|µ| MP，普朗克质量。根据元素合成和恒星演化的问题，可能允许也可能不允许较小的μ 2值。我们的结论是，观测到的μ 2值在人择学允许的范围内是合理的典型值，并且人择论为QCD标度和弱标度的接近提供了一个合理的解释。
In theories in which different regions of the universe can have different values of the the physical parameters, we would naturally find ourselves in a region which has parameters favorable for life. We explore the range of anthropically allowed values of the mass parameter in the Higgs potential, µ 2 . For µ 2 0, baryon stability requires that |µ| << MP, the Planck Mass. Smaller values of � µ 2 � may or may not be allowed depending on issues of element synthesis and stellar evolution. We conclude that the observed value of µ 2 is reasonably typical of the anthropically allowed range, and that anthropic arguments provide a plausible explanation for the closeness of the QCD scale and the weak scale.