论文标题
使用AMS-02数据，在几百GEV处的宇宙射线核光谱中硬化的起源
Origin of hardening in spectra of cosmic ray nuclei at a few hundred GeV using AMS-02 data
论文作者
论文摘要
许多实验已经证实了几百GV宇宙射线（CR）核的光谱硬化，并且已经提出了3种不同的起源：主要的源加速度，传播和不同类型的产物的叠加。在这项工作中，当刚性大于45 gV时，已采用断裂功率定律直接适合AMS-02核光谱。断裂刚度和光谱指数差异的拟合结果比断裂刚度的差异更小，更大，显示出不同核物种之间复杂的关系，而简单的主要源场景或传播方案不能自然地复制这种关系。但是，通过一个自然而简单的假设，不同种类的来源的叠加可能会成功解释拟合结果。将来一个单个实验（例如Dampe）的CR核谱光谱将为我们提供交叉检查并揭示不同种类来源的特性的机会。
Many experiments have confirmed the spectral hardening in a few hundred GV of cosmic ray (CR) nuclei spectra, and 3 different origins have been proposed: the primary source acceleration, the propagation, and the superposition of different kinds of sources. In this work, the break power law has been employed to fit each of the AMS-02 nuclei spectra directly when the rigidity greater than 45 GV. The fitting results of the break rigidity and the spectral index differences less and greater than the break rigidity show complicated relationships among different nuclei species, which could not been reproduced naturally by a simple primary source scenario or a propagation scenario. However, with a natural and simple assumption, the superposition of different kinds of sources could have the potential to explain the fitting results successfully. CR nuclei spectra from one single experiment in future (such as DAMPE) will provide us the opportunity to do cross checks and reveal the properties of the different kinds of sources.
