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arXiv 1002.2718astro-ph.COastro-ph.HE
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探测太阳类轴子粒子对检验宇宙学ALP-光子振荡假说的实验挑战

The experimental challenge of detecting solar axion-like particles to test cosmological ALP-photon oscillation hypothesis

F. T. Avignone, R. J. Creswick, S. Nussinov

摘要:

我们认为可能的实验测试最近的假设表明,TeV光子生存的对生产相互作用与河外背景光在宇宙学距离转换成类轴子粒子(ALP)在银河系磁场。我们表明,拟议的巨型超低背景闪烁探测器甚至将有一个困难的时间达到目前的CAST灵敏度,这是一个到两个数量级的灵敏度比必要的ALP光子振荡假设的有意义的测试。潜在的替代测试进行了简要讨论。

英文摘要:

We consider possible experimental tests of recent hypotheses suggesting that TeV photons survive the pair production interaction with extragalactic background light over cosmological distances by converting to axion-like particles (ALPs) in galactic magnetic fields. We show that proposed giant ultra-low background scintillation detectors will even have a difficult time reaching the present CAST sensitivity, which is one to two orders of magnitude less sensitive than necessary for a meaningful test of the ALP-photon oscillation hypothesis. Potential alternative tests are briefly discussed.

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