Leading order analysis of neutrino induced dimuon events in the CHORUS experiment
Leading order analysis of neutrino induced dimuon events in the CHORUS experiment
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DOI：
10.1016/j.nuclphysb.2008.02.013
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发表时间：
2008-04
期刊：
影响因子：
--
通讯作者：
The Chorus Collaboration
中科院分区：
文献类型：
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作者：
The Chorus Collaboration
我们提出了一个领先的阶QCD分析的中微子诱导的带电电流事件的样品中的两个μ子在最后的状态起源于铅的CHORUS检测器的光纤量热计。结果是基于8910中微子和430反中微子引起的相反符号的双μ子事件收集的检测器在1995年和1998年之间的欧洲核子研究中心的宽带中微子束曝光的样本。分析得到粲夸克质量mc=（1.26±0.16±0.09）GeV/c2，核子奇异海与非奇异海之比κ=0.33±0.05±0.05，改进了以往实验中类似分析的结果.
We present a leading order QCD analysis of a sample of neutrino induced charged-current events with two muons in the final state originating in the lead-scintillating fibre calorimeter of the CHORUS detector. The results are based on a sample of 8910 neutrino and 430 antineutrino induced opposite-sign dimuon events collected during the exposure of the detector to the CERN Wide Band Neutrino Beam between 1995 and 1998. The analysis yields a value of the charm quark mass of mc=(1.26±0.16±0.09)GeV/c2and a value of the ratio of the strange to non-strange sea in the nucleon of κ=0.33±0.05±0.05, improving the results obtained in similar analyses by previous experiments.