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arXiv 0812.0219hep-phastro-ph
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根据Cosmic Ray电子/正电子通量的最新测量,来自湮灭/衰变暗物质的中微子信号

Neutrino Signals from Annihilating/Decaying Dark Matter in the Light of Recent Measurements of Cosmic Ray Electron/Positron Fluxes

Junji Hisano, Masahiro Kawasaki, Kazunori Kohri, Kazunori Nakayama

摘要:

PAMELA卫星和ATIC气球实验测量到的宇宙线电子和正电子通量的过剩可以解释为暗物质湮灭或衰变为轻子的信号。在这封信中,我们表明,再现电子/正电子过剩的暗物质湮灭/衰变可能会从银河系中心产生大量的高能中微子。在这种情况下,未来更大的正方形大小的实验可能会证实这种情况,甚至超级神冈的结果已经对一些暗物质模型提出了限制。

英文摘要:

The excess of cosmic-ray electron and positron fluxes measured by the PAMELA satellite and ATIC balloon experiments may be interpreted as the signals of the dark matter annihilation or decay into leptons. In this letter we show that the dark matter annihilation/decay which reproduces the electron/positron excess may yield a significant amount of high-energy neutrinos from the Galactic center. In the case, future kilometer-square size experiments may confirm such a scenario, or even the Super-Kamiokande results already put constraints on some dark matter models.

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