Study Of Neutrino-Nucleus Interaction Using Neutrino Beam

利用中微子束研究中微子-原子核相互作用

• 批准号: 10640252
• 负责人: ITOW Yoshitaka
• 金额: $ 2.11万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10640252/
• 关键词: Neutrino Oscillations; Super-Kamiokande; Water Cherenkov detector; Long Baseline Neutrino Oscillation Experiments; Neutrino Interactions; Proton Synchrotron; Proton Decay; The K2K Experiment; K2K実験; 水チェレンコフ装置; 素粒子; ニュートリノ質量; 弱い相互作用; 原子核; 中性カ

In this research, neutrino interaction with water target has been studied with water Chereckov detector by using accelerator produced neutrino beam in the K2K experiment, which is the first long baseline neutrino oscillation experiments in the world. We constructed the 1 kt water Cherenkov detector at High Energy Accelerator Research Organization (KEK) as a near detector of the K2K experiment. We have observed many neutrino interactions with the 1 kt water Cherenkov detector since 1999. The expected number of interactions at Super-Kamiokande is estimated by using the 1 kt water Cherenkov data to be 80.6+7.3-8.0, while 56 events were observed. The 1 kt water Cherenkov data has been also used to study various kind of neutrino interactions, such as neutral current interactions, possible fake events of proton decay events. Those results will be published soon.

本研究利用K2K实验中加速器产生的中微子束，利用水切列科夫探测器研究了中微子与水目标的相互作用，这是国际上首次长基线中微子振荡实验。我们在高能加速器研究组织（KEK）建造了 1 kt 水切伦科夫探测器，作为 K2K 实验的近探测器。自 1999 年以来，我们已经观察到许多中微子与 1 kt 水切伦科夫探测器的相互作用。使用 1 kt 水切伦科夫数据估计 Super-Kamiokande 的预期相互作用数量为 80.6+7.3-8.0，同时观察到了 56 个事件。 1 kt 水切伦科夫数据还被用来研究各种中微子相互作用，例如中性流相互作用、质子衰变事件的可能假事件。这些结果将很快公布。

项目成果

K2K Collaboration (S. H. Ahn et al.): ""Detection of Accelerator Produced Neutrinos at a Distance of 250 km""Physics Letter. B511. 178-184 (2001)

K2K Collaboration（S. H. Ahn 等人）：“检测 250 公里距离处加速器产生的中微子”《物理学快报》。

Y. Itow (for K2K and Super-Kamiokande Collaborations): ""Recent Results in Super-Kamiokande and K2K""Physica Scripta. T93. 53-58 (2001)

Y. Itow（K2K 和 Super-Kamiokande 合作）：“Super-Kamiokande 和 K2K 的最新结果”Physica Scripta。

K2K Collaboration (S.H.Ahn et al.): "Detection of Accelerator Produced Neutrinos at a Distance of 250 km"Physics Letter. B511. 178-184 (2001)

K2K 合作（S.H.Ahn 等人）：“检测 250 公里距离处加速器产生的中微子”物理快报。

Y.Itow: "Recent results in Super-Kamiokande and K2K"Physica Scripta. T93. 53-58 (2001)

Y.Itow：“Super-Kamiokande 和 K2K 的最新结果”Physica Scripta。

K2K Collaboration (S.H.Ahn, et al.): "Detection of Accelerator Produced Neutrinos at a Distance of 250 km"Physica Letter. B511. 178-184 (2001)

K2K 合作（S.H.Ahn 等人）：“检测 250 公里距离处加速器产生的中微子”物理学快报。