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arXiv 0903.0618hep-phastro-ph.HEhep-ex
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热地球轴子

Thermal Geo-axions

Hooman Davoudiasl, Patrick Huber

摘要:

我们估计了在温度T~ 5000 K的地核中轴子型粒子的产生率。我们通过要求核心冷却速率小于100 K/Gyr来限制热地球轴子发射,正如地球物理学所建议的那样。这产生了一个“准真空”(不受极端恒星条件的影响),其束缚在轴子-电子精细结构常数α_a^{QV} < 10^{-18}上,比现有的加速器(真空)束缚强4个数量级。我们考虑了通过在地质镜中转换成光子来测量地质轴子通量的前景;这样的测量可以进一步限制α ^{QV}。

英文摘要:

We estimate the production rate of axion-type particles in the core of the Earth, at a temperature T~5000K. We constrain thermal geo-axion emission by demanding a core-cooling rate less than 100K/Gyr, as suggested by geophysics. This yields a "quasi-vacuum" (unaffected by extreme stellar conditions) bound on the axion-electron fine structure constant α_a^{QV} < 10^{-18}, stronger than the existing accelerator (vacuum) bound by 4 orders of magnitude. We consider the prospects for measuring the geo-axion flux through conversion into photons in a geoscope; such measurements can further constrain α_a^{QV}.

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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