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arXiv 1012.1794hep-ex
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在1.3- GeV宽带束流中中微子荷电相互作用中包含$π^0$产生的测量

Measurement of inclusive $π^0$ production in the Charged-Current Interactions of Neutrinos in a 1.3-GeV wide band beam

K2K Collaboration, C. Mariani

摘要:

本文报道了在K ~ 2 K近场探测器上测量了平均能量为1.3 GeV的C $_8$ H $_8$靶中带电中微子相互作用诱导的包容性$π^0$产生率。从11,606个带电中微子相互作用的样本中,我们选择了479个具有两个重建光子的$π^0$事件。我们发现包含$π^0$产生的截面相对于带电准弹性截面为$$\frac{σ_{CCπ^0}}{σ_{CCQE}}=0.426\pm0.032(stat.)\pm0.035(syst.)$$。还测量了能量依赖的截面比。该结果与以往的实验结果一致的排他性通道上不同的目标。

英文摘要:

In this paper we report on the measurement of the rate of inclusive $π^0$ production induced by charged-current neutrino interactions in a C$_8$H$_8$ target at a mean energy of 1.3 GeV in the K2K near detector. Out of a sample of 11,606 charged current neutrino interactions, we select 479 $π^0$ events with two reconstructed photons. We find that the cross section for the inclusive $π^0$ production relative to the charged-current quasi-elastic cross section is $$\frac{σ_{CCπ^0}}{σ_{CCQE}}=0.426\pm0.032(stat.)\pm0.035(syst.)$$ The energy dependent cross section ratio is also measured. The results are consistent with previous experiments for exclusive channels on different targets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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