Title: The Cosmic-Ray Spectra: News on their Knees Show Chinese title

Title: 宇宙线谱：关于它们的最新消息

Abstract: In a comprehensive model of Cosmic Rays (CRs) proposed a decade ago, the energies of the spectral "knees" of the various CR species were predicted to be proportional to mass, rather than charge. The model also predicts the knees to occur at an energy of two to four million times the particle's rest mass. Recent data allow one to verify this prediction, particularly for Fe and lighter-nuclei CRs. But the most stringent test involves the putative knee in the CR electron spectrum, since the mass ratio of electrons to protons (and nuclei) is so very different from their charge ratio(s). Very recent results on the spectra of positrons and electrons at the highest measured energies corroborate the existence of an electron knee, with the expected shape and at the predicted energy. Show Chinese abstract

Abstract: 在大约十年前提出的宇宙射线（CRs）的综合模型中，预测了各种CR物种谱的“膝盖”能量应与质量成正比，而非电荷。 该模型还预测这些膝盖出现在粒子静止质量能量的两百万到四百万倍处。 最近的数据允许我们验证这一预测，特别是针对铁和较轻核子的CRs。 但最严格的检验涉及CR电子能谱中的假定膝盖，因为电子与质子（及核子）的质量比与其电荷比相差很大。 最新关于最高测量能量下正电子和电子谱的结果证实了电子膝盖的存在，其形状和预测的能量均符合预期。