论文标题
宇宙射线正常的非大专起源
Nonsecondary origin of cosmic ray positrons
论文作者
论文摘要
我们研究了观察到的电子和抗树脂子光谱，研究了二次产生作为宇宙射线（CR）正电子的来源，并允许据报道的AMS-02正电子光谱中报告的陡峭趋势可能是由于辐射损失所致。使用基于抗蛋白酶谱的简单参数，我们表明正上不能纯粹是次要的。也就是说，抗蛋白质与正电子的比例要求将正电子脱落到几百GEV。该要求意味着CR质子太快从星系中逃脱，无法再现观察到的抗蛋白通量。我们进一步表明，该结果排除了更复杂的二级生产方案，例如重新计算和嵌套泄漏盒。因此，我们得出的结论是，虽然可以在二次相互作用中仅生产抗抗蛋白酶，但需要CR正值的主要来源 - 无论是暗物质还是脉冲 - 都需要解释其频谱。
We investigate the possibility of secondary production as the source of cosmic ray (CR) positrons, taking into account observed electron and antiproton spectra and allowing that the reported steepening in the AMS-02 positron spectrum may be due to radiative losses. Using a simple argument based on the antiproton spectrum, we show that positrons cannot be purely secondary. Namely, the antiproton to positron ratio requires that positrons be uncooled up to a few hundred GeV. This requirement implies that CR protons escape from the Galaxy too quickly to reproduce the observed antiproton flux. We further show that this result rules out also more complex secondary production scenarios such as reacceleration and the Nested Leaky Box. Thus, we conclude that while antiprotons can be produced exclusively in secondary interactions, a primary source of CR positrons -- be it dark matter or pulsars -- is required to explain their spectrum.
