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arXiv 0812.4572hep-ph
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银河系正电子作为大额外维的探测器

Galactic Positrons as a Probe of Large Extra Dimensions

C. Bird

摘要:

在过去的十年里,人们对宇宙包含大量额外维度的可能性越来越感兴趣。在这篇文章中,它提出的卡鲁扎-克莱因模式,这是预测存在于这样的模型将被困在星系晕,并在目前这些模式的后续衰变将产生一个可观察到的正电子和$γ$ -射线流从银河系核心。特别是,通过限制生产率511千电子伏光子低于观察到的INTEGRAL卫星,一组新的约束施加在ADD模型。

英文摘要:

In the last decade, there has been increased interest in the possibility that the Universe contains large additional dimensions. In this article it is proposed that the Kaluza-Klein modes which are predicted to exist in such models will be trapped in the galactic halo, and that the subsequent decays of these modes in the present will generate an observable flux of positrons and $γ$-rays from the galactic core. In particular, by restricting the rate of production 511 keV photons to be below that observed by the INTEGRAL satellite, a new set of constraints are imposed on the ADD model.

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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