Measurement of Coherent p^{+} Production in Low Energy Neutrino-Carbon Scattering.
Measurement of Coherent p^{+} Production in Low Energy Neutrino-Carbon Scattering.
复制标题
低能中微子碳散射中相干 p^{ } 产生的测量。
DOI：
10.1103/physrevlett.117.192501
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发表时间：
2016
影响因子：
8.6
通讯作者：
Abe K
中科院分区：
文献类型：
--
作者：
Abe K
我们首次测量了中微子能量小于1.5GeV的碳上电荷电流相干产生的通量平均截面，并对T2K探测器ND280的终态相空间体积进行了限制。与Rein-Sehga相干产生模型和Alvarez-Rusoet等人的模型的预测进行了比较，后者代表了中微子相互作用蒙特卡罗事件产生器中新的一类微观相干模型的第一个实例。我们在背景上方观察到了一个明显的事件过剩，这与K2K和SciBooNE在类似的中微子能量区所报道的零结果不一致。测得的通量平均截面低于Rein-Sehga和Alvarez-Rusoet模型的预测结果。
We report the first measurement of the flux-averaged cross section for charged current coherentproduction on carbon for neutrino energies less than 1.5 GeV, and with a restriction on the final state phase space volume in the T2K near detector, ND280. Comparisons are made with predictions from the Rein-Sehgal coherent production model and the model by Alvarez-Rusoet al., the latter representing the first implementation of an instance of the new class of microscopic coherent models in a neutrino interaction Monte Carlo event generator. We observe a clear event excess above background, disagreeing with the null results reported by K2K and SciBooNE in a similar neutrino energy region. The measured flux-averaged cross sections are below those predicted by both the Rein-Sehgal and Alvarez-Rusoet al.models.