来自DAMPE太空任务的高能星系宇宙射线结果

Leandro Silveri
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摘要

暗物质粒子探测器(DAMPE)是2015年在500公里高度的太阳同步轨道上发射的卫星实验,从那以后它一直在稳定的条件下采集数据。它的主要目标包括高达极高能量的光谱测量,高达数十TeV的宇宙电子/正电子和伽马射线,以及高达数百TeV的质子和原子核。该探测器的主要特点包括32个辐射长度的深量热计和大的几何接受度,使DAMPE成为运行中最强大的空间仪器之一,具有高统计和小系统,可覆盖高达数百TeV的高能前沿。给出并讨论了不同种类的光谱测量结果。
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Results on high energy galactic cosmic rays from the DAMPE space mission
DAMPE (Dark Matter Particle Explorer) is a satellite-born experiment launched in 2015 in a sun-synchronous orbit at 500 km altitude, and it has been taking data in stable conditions ever since. Its main goals include the spectral measurements up to very high energies, cosmic electrons/positrons and gamma rays up to tens of TeV, and protons and nuclei up to hundreds of TeV. The detector’s main features include the 32 radiation lengths deep calorimeter and large geometric acceptance, making DAMPE one of the most powerful space instruments in operation, covering with high statistics and small systematics the high energy frontier up to several hundreds TeV. The results of spectral measurements of different species are shown and discussed.
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