T2K neutrino flux prediction
T2K neutrino flux prediction
复制标题
T2K中微子通量预测
DOI：
10.1103/physrevd.87.012001
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发表时间：
2013
影响因子：
5
通讯作者：
Abe K
中科院分区：
文献类型：
--
作者：
Abe K
Tokai-to-Kamioka（T2 K）实验使用峰值能量约为0.6 GeV的离轴μ子中微子束研究中微子振荡，该中微子束起源于日本质子加速器研究综合体加速器设施。在距离生产目标280 m的近探测器和距离生产目标295公里的远探测器Super-Kamiokande上观察到了中微子的相互作用。通量预测是T2 K探测器成功预测中微子相互作用速率的重要组成部分，也是T2 K中微子振荡和截面测量的重要输入。基于FLUKA和GEANT 3的模拟对中微子产生所涉及的物理过程进行了建模，从T2 K靶中初级束质子的相互作用，到产生中微子的强子和μ子的衰变。模拟使用质子束监测器测量作为输入。强子相互作用的建模重新加权使用薄靶强子产生数据，包括最近的带电π介子和K介子测量从NA 61/SHINE实验。对于第一次T2 K分析，通量预测的不确定性被评估为在通量峰值附近低于15%。在通量峰值附近，远探测器和近探测器的通量预测比值的不确定性小于2%。
The Tokai-to-Kamioka (T2K) experiment studies neutrino oscillations using an off-axis muon neutrino beam with a peak energy of about 0.6 GeV that originates at the Japan Proton Accelerator Research Complex accelerator facility. Interactions of the neutrinos are observed at near detectors placed at 280 m from the production target and at the far detector—Super-Kamiokande—located 295 km away. The flux prediction is an essential part of the successful prediction of neutrino interaction rates at the T2K detectors and is an important input to T2K neutrino oscillation and cross section measurements. A FLUKA and GEANT3-based simulation models the physical processes involved in the neutrino production, from the interaction of primary beam protons in the T2K target, to the decay of hadrons and muons that produce neutrinos. The simulation uses proton beam monitor measurements as inputs. The modeling of hadronic interactions is reweighted using thin target hadron production data, including recent charged pion and kaon measurements from the NA61/SHINE experiment. For the first T2K analyses the uncertainties on the flux prediction are evaluated to be below 15% near the flux peak. The uncertainty on the ratio of the flux predictions at the far and near detectors is less than 2% near the flux peak.
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Iroon Polytechniou-
通讯作者：
Iroon Polytechniou-
19.2-GeV/c 质子相互作用的高能粒子光谱
影响因子：
5
作者：
J. Allaby;A. Diddens;R. Meunier;F. Binon;A. Klovning;P. Duteil
通讯作者：
P. Duteil