在CERN SPS上对p+C碰撞中π介子产生截面的测量
Pion Production Cross-section Measurements in p+C Collisions at the CERN SPS for Understanding Extensive Air Showers
摘要：
研究高能宇宙射线的一个重要方法是研究广泛的空气簇射的性质;然而，在模拟这种簇射时粒子的横向分布强烈依赖于低能强子相互作用的应用模型。它已被证明，许多限制适用于这些模型可以通过研究识别粒子的光谱从加速器碰撞，在欧洲核子研究中心的超级质子同步加速器的能量范围内。在这里，我们提出了测量的π介子生产截面获得的NA 61/SHINE实验在SPS，在质子-碳碰撞的光束能量为31 GeV，从2007年。正在准备对SHINE中已识别粒子产率的进一步分析，特别是使用π介子束的分析。
英文摘要：
An important approach to studying high-energy cosmic rays is the investigation of the properties of extensive air showers; however, the lateral distribution of particles in simulations of such showers strongly depends on the applied model of low-energy hadronic interactions. It has been shown that many constraints to be applied to these models can be obtained by studying identified-particle spectra from accelerator collisions, in the energy range of the CERN Super Proton Synchrotron. Here we present measurements of the pion production cross-section obtained by the NA61/SHINE experiment at the SPS, in proton-carbon collisions at the beam energy of 31 GeV from the year 2007. Further analyses of identified-particle yields in SHINE, in particular with a pion beam, are in preparation.
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