Some experimental limits on the annihilation cross sections ${\sigma }_{\mathrm{ann}}$ of antiprotons on carbon, palladium, and platinum targets were determined at the previously unexplored kinetic energy region $E\approx 125$ keV. Information on ${\sigma }_{\mathrm{ann}}$ at such low antiproton energies is important in understanding the dynamics of the annihilation process, and provides useful data for models that attempt to describe the matter-antimatter asymmetry in the universe by assuming the existence of islands of antimatter concentration.

中文翻译：

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125 keV时反质子核an灭截面的极限

an灭截面的一些实验极限 ${\sigma }_{\mathrm{安}}$ 在先前未开发的动能区域确定了碳，钯和铂靶上的反质子 $E\approx 125$keV。有关的信息${\sigma }_{\mathrm{安}}$ 如此低的反质子能量对于理解the灭过程的动力学很重要，并为试图通过假设存在反物质浓度岛来描述宇宙中物质-反物质不对称性的模型提供了有用的数据。