AMS-02 antiprotons' consistency with a secondary astrophysical origin
AMS-02 antiprotons' consistency with a secondary astrophysical origin
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DOI：
10.1103/physrevresearch.2.023022
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发表时间：
2019-06
影响因子：
4.2
通讯作者：
M. Boudaud;Y. G'enolini;L. Derome;J. Lavalle;D. Maurin;P. Salati;P. Serpico
中科院分区：
文献类型：
--
作者：
M. Boudaud;Y. G'enolini;L. Derome;J. Lavalle;D. Maurin;P. Salati;P. Serpico
AMS-02实验将宇宙线物理带入了精密时代。在另一篇文章中，我们设计了一种改进的方法来校准B/C数据的传播模型。在这里，我们提供了一个稳健的预测，说明了不确定因素的几个来源及其相互关系。结合$\bar{p}$数据的关联矩阵，我们表明后者与二次起源是一致的。这封信介绍了这个通道中与暗物质搜索相关的关键元素，特别是指出了在百分比水平上实现预测的内在困难。
The AMS-02 experiment has ushered cosmic-ray physics into precision era. In a companion paper, we designed an improved method to calibrate propagation models on B/C data. Here we provide a robust prediction of the $\bar{p}$ flux, accounting for several sources of uncertainties and their correlations. Combined with a correlation matrix for the $\bar{p}$ data, we show that the latter are consistent with a secondary origin. This Letter presents key elements relevant to dark matter search in this channel, notably by pointing out the inherent difficulties in achieving predictions at the percent-level precision.