An antiproton search in high energy cosmic rays is reported by observing the Moon shadow with the L3+C muon detector at CERN.An observation is made of a significant effect of the Earth magnetic field on the image of the Moon shadow.From the absence of any event deficit on the antimatter side,an upper limit on the amount of antiprotons in cosmic rays at TeV energies is estimated.The effect is used to demonstrate the absence of any significant systematic pointing error and to confirm the good angular resolution of the experiment.
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机译：通过在CERN中观察L3 + C muon探测器的月亮阴影来报告高能量宇宙射线中的反罗朗搜索.AN观察是由地球磁场对月球图像上的图像的显着影响。从不存在据估计，任何事件赤字，估计TEV精能的宇宙射线中的反水解量的上限。效果用于证明没有任何显着的系统指向误差并确认实验的良好角度分辨率。
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