Spectrum of cosmic-ray nucleons, kaon production, and the atmospheric muon charge ratio
Spectrum of cosmic-ray nucleons, kaon production, and the atmospheric muon charge ratio
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DOI：
10.1016/j.astropartphys.2012.02.010
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发表时间：
2011-11
影响因子：
3.5
通讯作者：
T. Gaisser
中科院分区：
文献类型：
--
作者：
T. Gaisser
对TeV范围内的Muon电荷比测量的解释取决于初级宇宙辐射中的质子和中子的光谱，以及产生和在大气中的包容截面。最近对宇宙线核能谱的测量被用来分别估计质子和中子的能谱，从而计算大气中电荷分离的强子级联。从相应的产生谱计算了理论，并与最近的测量结果进行了比较。通过比较，确定了介子和介子的相对贡献。讨论了对和的光谱的影响。
Interpretation of measurements of the muon charge ratio in the TeV range depends on the spectra of protons and neutrons in the primary cosmic radiation and on the inclusive cross sections for production ofandin the atmosphere. Recent measurements of the spectra of cosmic-ray nuclei are used here to estimate separately the energy spectra of protons and neutrons and hence to calculate the charge separated hadronic cascade in the atmosphere. From the corresponding production spectra ofandtheratio is calculated and compared to recent measurements. The comparison leads to a determination of the relative contribution of kaons and pions. Implications for the spectra ofandare discussed.