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arXiv 0911.3401gr-qcastro-ph.COhep-phhep-th
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PPN参数$γ$与大质量Brans-Dicke理论的太阳系约束

PPN Parameter $γ$ and Solar System Constraints of Massive Brans-Dicke Theories

L. Perivolaropoulos

摘要:

以前的太阳系约束的Brans-Dicke(BD)参数$ω$要么忽略了标量场势(质量项)的影响,或假设一个高质量的标量场。在这里,我们插在上述两个假设之间,并推导出太阳系的BD参数$ω$的{ \it任何}场质量的约束。我们表明,对于$ω=O(1)$太阳系的约束放宽场质量$m \gsim 20 \times m_{AU}= 20\times 10^{-27}GeV$。

英文摘要:

Previous solar system constraints of the Brans-Dicke (BD) parameter $ω$ have either ignored the effects of the scalar field potential (mass terms) or assumed a highly massive scalar field. Here, we interpolate between the above two assumptions and derive the solar system constraints on the BD parameter $ω$ for {\it any} field mass. We show that for $ω=O(1)$ the solar system constraints relax for a field mass $m \gsim 20 \times m_{AU}= 20\times 10^{-27}GeV$.

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