从IceCube 22弦探测器对太阳中Kaluza-Klein暗物质湮灭的μ子通量的限制
Limits on a muon flux from Kaluza-Klein dark matter annihilations in the Sun from the IceCube 22-string detector
摘要：
利用2007年104.3天的观测数据，利用冰立方中微子探测器的22弦结构，对太阳中Kaluza-Klein暗物质湮灭产生的μ介子中微子进行了探测。没有观察到超过预期大气背景的过量。已获得了在太阳中捕获的最轻Kaluza-Klein粒子（LKP）WIMP的湮灭率的上限，并将其转换为LKP质量在250 - 3000 GeV范围内的LKP-质子截面的极限。这些结果是迄今为止对LKP在太阳中湮灭的最严格限制。
英文摘要：
A search for muon neutrinos from Kaluza-Klein dark matter annihilations in the Sun has been performed with the 22-string configuration of the IceCube neutrino detector using data collected in 104.3 days of live-time in 2007. No excess over the expected atmospheric background has been observed. Upper limits have been obtained on the annihilation rate of captured lightest Kaluza-Klein particle (LKP) WIMPs in the Sun and converted to limits on the LKP-proton cross-sections for LKP masses in the range 250 -- 3000 GeV. These results are the most stringent limits to date on LKP annihilation in the Sun.
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