Parametrizations of inclusive cross sections for pion production in proton-proton collisions. II. Comparison to new data
Parametrizations of inclusive cross sections for pion production in proton-proton collisions. II. Comparison to new data
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质子-质子碰撞中π介子产生的包容截面的参数化。
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
L. W. Townsend
中科院分区：
文献类型：
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作者：
J. Norbury;L. W. Townsend
NA49合作组织最近提供了一组新的、精确的数据，用于在158gev的质子-质子和质子-碳反应中产生带电介子。本文将这一新数据与目前可用的五种算法参数化进行了比较。虽然不期望精确的拟合，但其中两个参数化工作得不是很好，但其他三个参数化能够提供适度的好，但不精确地拟合质子-质子数据。这三种参数化中最好的两种被缩放到质子-碳数据，并且再次提供了适度的良好拟合，但不是精确的拟合。
A set of new, precise data have recently been made available by the NA49 Collaboration for charged pion production in proton-proton and proton-Carbon reactions at 158 GeV. The current paper compares this new data to five currently available arithmetic parameterizations. Although a precise fit is not expected, two of the parameterizations do not work very well but the other three are able to provide a moderately good, but not precise fit to the proton-proton data. The best two of these three parameterizations are scaled to the proton-Carbon data and again provide a moderately good, but not precise fit.