Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum
Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum
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DOI：
10.1140/epjc/s2005-02391-9
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发表时间：
2006-02-01
影响因子：
4.4
通讯作者：
Yoo, I. K.
中科院分区：
文献类型：
--
作者：
Alt, C.;Anticic, T.;Yoo, I. K.
给出了在p+p相互作用中产生带电π介子的新结果。这些数据来自CERN SPS的NA 49探测器在158 GeV/c束动量下获得的480万个非弹性事件的样本。在一个大型TPC跟踪系统中通过能量损失测量来识别π介子，该跟踪系统覆盖了生产相空间的主要部分。包容性不变截面上的网格上的近300箱每个电荷的间隔从0到2 GeV/c的横向动量和从0到0.85的费曼x。将结果与重叠能量范围内的现有数据进行比较。
New results on the production of charged pions in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. Pions are identified by energy loss measurement in a large TPC tracking system which covers a major fraction of the production phase space. Inclusive invariant cross sections are given on a grid of nearly 300 bins per charge over intervals from 0 to 2 GeV/c in transverse momentum and from 0 to 0.85 in Feynman x. The results are compared to existing data in overlapping energy ranges.