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arXiv 0811.1845astro-ph
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非普适标量张量理论与大爆炸核合成

Non-universal scalar-tensor theories and big bang nucleosynthesis

Alain Coc, Keith A. Olive, Jean-Philippe Uzan, Elisabeth Vangioni

摘要:

我们调查的限制,可以设置从大爆炸核合成两类模型:扩展的精粹和标量张量引力理论,其中标准物质和暗物质之间的等效原理是违反的。在后一种情况下,并为无质量的二次耦合,理论的相空间进行了研究。我们描述那些吸引力朝向广义相对论的理论。结果表明,大爆炸核合成设置更严格的限制比从太阳系的测试。

英文摘要:

We investigate the constraints that can be set from big-bang nucleosynthesis on two classes of models: extended quintessence and scalar-tensor theories of gravity in which the equivalence principle between standard matter and dark matter is violated. In the latter case, and for a massless dilaton with quadratic couplings, the phase space of theories is investigated. We delineate those theories where attraction toward general relativity occurs. It is shown that big-bang nucleosynthesis sets more stringent constraints than those obtained from Solar system tests.

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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