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arXiv 2211.03325hep-phastro-ph.COnucl-thphysics.atom-ph
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s和c夸克质量的时空变化

Space-time variation of the s and c quark masses

V. V. Flambaum, P. Munro-Laylim

摘要:

膨胀宇宙中基本物理常数的时空变化被许多流行的模型预言。第二代夸克的质量比第一代夸克的质量大几个数量级,因此夸克质量的时空变化在每一代之间可能会有很大的变化。我们从大爆炸核合成,Oklo天然核反应堆,Yb+,Cs和Rb时钟数据的s和c夸克质量的变化进行评估的限制。229 Th核钟的建造有望将这些极限提高几个数量级。此外,约束上的振荡标量或赝标量冷暗物质领域,作为与夸克的相互作用产生的夸克质量的变化。

英文摘要:

Space-time variation of fundamental physical constants in expanding Universe is predicted by a number of popular models. The masses of second generation quarks are larger than first generation quark masses by several orders of magnitude, therefore space-time variation in quark masses may significantly vary between each generation. We evaluate limits on variation in the s and c quark masses from Big Bang nucleosynthesis, Oklo natural nuclear reactor, Yb+, Cs and Rb clock data. The construction of 229Th nuclear clock is expected to enhance these limits by several orders of magnitude. Furthermore, constraints are obtained on an oscillating scalar or pseudoscalar cold dark matter field, as interactions of the field with quarks produce variations in quark masses.

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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