Charged pion spectra in proton—carbon interactions at 31 GeV/c
Charged pion spectra in proton—carbon interactions at 31 GeV/c
复制标题
31 GeV/c 下质子-碳相互作用的带电介子光谱
DOI：
10.1088/1742-6596/408/1/012048
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
M. Posiadała
中科院分区：
文献类型：
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作者：
M. Posiadała
CERN SPS 的 NA61/SHINE 实验测量了 31 GeV/c 下 p+C 相互作用中的带电π介子光谱。这些测量对于改进日本 T2K 长基线中微子振荡实验的中微子通量预测是必要的。所提出的分析基于 2007 年第一次 NA61/SHINE 运行期间收集的数据，使用厚度为核相互作用长度 4% 的各向同性石墨靶。介绍了用于获得 π+ 和 π− 光谱的三种不同方法。带负电和带正电的 π 介子的微分截面以实验室极角（最高 420 mrad）的 10 个间隔内的实验室动量函数的形式呈现。
The NA61/SHINE experiment at CERN SPS measured charged pion spectra in p+C interactions at 31 GeV/c. These measurements are necessary to improve predictions of the neutrino flux for the T2K long baseline neutrino oscillation experiment in Japan. Presented analysis was based on the data collected during the first NA61/SHINE run in 2007 with an isotropic graphite target with a thickness of 4% of nuclear interaction length. Three different methods which were used in order to obtain π+ and π− spectra are introduced. Differential cross sections for negatively and positively charged pions are presented as a function of laboratory momentum in ten intervals of the laboratory polar angle up to 420 mrad.