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arXiv 1201.4734hep-thgr-qc
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共形宇宙III:物质产生的基本机制

The Conformal Universe III: Basic Mechanisms of Matter Generation

Renato Nobili

摘要:

这是共形广义相对论(CGR)的三篇论文中的最后一篇,它将膨胀归因于共形对称性的自发破坏,然后是从几何到物质的突然能量转移,被确定为大爆炸。这个过程是由两个南武-戈德斯通场的保角不变、保幺正相互作用驱动的:一个是幽灵标量场$σ$,具有几何意义,另一个是物理标量场$φ$,表现得像一个质量变化的希格斯场。大爆炸产生了大量温度为$T_B\simeq 141$ GeV的希格斯玻色子,之后宇宙发生了演化,希格斯玻色子衰变为标准模型粒子,引力耦合常数的大小也随之减小。当$σ$ - $φ$相互作用势为零时,该过程结束,这些场的振幅收敛到它们在最终稳定真空中的期望值,希格斯玻色子质量收敛到约126 GeV。这种现象学的主要方面定性描述和准确的数值模拟举例说明。零时刻的CGR引力方程与熵守恒方程相结合,得到了惊人的预言。与天文学数据的最佳拟合是从标准希格斯玻色子参数和宇宙年龄19.5 Gyr获得的。由此预言了宇宙学常数$Λ\simeq 1.35\times 10^{-35}$ s $^{-2}$、跨暴胀的标度因子$Z\simeq 4.54\times 10^{27}$和宇宙背景各向异性功率谱的下限$W_{min}\!\simeq 37.5\,μ$ K $^2$。

英文摘要:

This is the last of three papers on Conformal General Relativity (CGR), which ascribes inflation to a spontaneous breakdown of conformal symmetry, followed by a sudden energy transfer from geometry to matter identified as big bang. This process is driven by a conformal-invariant, unitarity-preserving interaction of two Nambu-Goldstone fields: a ghost scalar field $σ$, invested with geometric meaning, and a physical scalar field $φ$ behaving like a Higgs field of varying mass. The big bang generates a bulk of Higgs bosons at temperature $T_B\simeq 141$ GeV, after which the universe evolves adiabatically while the Higgs bosons decay into Standard-Model particles and the magnitude of the gravitational coupling constant decreases. The process ends when the $σ$-$φ$ interaction potential vanishes, the amplitudes of these fields converge to their expectation values in a final stable vacuum and the Higgs-boson mass converges to about 126 GeV. The main aspects of this phenomenology are qualitatively described and accurately exemplified by numerical simulations. The combination of CGR gravitational equation at time zero with entropy conservation equation results in striking predictions. The best fit to astronomic data is obtained from only standard Higgs boson parameters and a universe age of 19.5 Gyr. The cosmological constant $Λ\simeq 1.35\times 10^{-35}$s$^{-2}$, the scale factor across inflation $Z\simeq 4.54\times 10^{27}$, and the lower bound of the power spectrum of cosmic background anisotropies $W_{min}\!\simeq 37.5\,μ$K$^2$ are thus predicted.

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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