Bridging grant for T2K Project

T2K 项目过渡补助金

• 批准号: 419229-2012
• 负责人: Jamieson, Blair
• 金额: $ 3.28万
• 依托单位: University of Winnipeg
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=515789
• 关键词: Bridging; grant; T2K; Project

The T2K experiment uses a high intensity muon-neutrino beam produced at the Japan Proton Accelerator Research Complex (J-PARC) in Tokai, Japan. The beam is directed 2.5 degrees off-axis to the 50 kTon water Cerenkov detector, Super-Kamiokande (SK), which sits 295 km away in the Kamioka mine. By using an off-axis beam the energy spectrum of the muon-neutrinos is narrower, and concentrated around the maximum probability for muon-neutrino disappearance at SK. The muon-neutrino beam is also measured by a near detector at 280 m (ND280) from the neutrino beam production target. The near detector provides the overall normalisation for the muon-neutrino rate, and measures the energy spectrum of the neutrinos before oscillation. Part of the ND280 detector complex is a set of three large volume Time Projection Chambers (TPCs) which provide excellent charged particle tracking, and particle identification using its momentum and dE/dx measurements.

T2K 实验使用日本东海质子加速器研究中心 (J-PARC) 产生的高强度 μ 中微子束。 光束以离轴 2.5 度的方向射向 50 kTon 水切伦科夫探测器 Super-Kamiokande (SK)，该探测器位于 295 公里外的 Kamioka 矿井中。 通过使用离轴光束，μ子中微子的能谱更窄，并且集中在SK处μ子中微子消失的最大概率附近。 μ子中微子束也由距中微子束产生目标 280 m (ND280) 处的近探测器测量。 近探测器提供μ子中微子速率的整体归一化，并测量振荡前中微子的能谱。 ND280 探测器复合体的一部分是一组三个大容量时间投影室 (TPC)，它们提供出色的带电粒子跟踪功能，并使用其动量和 dE/dx 测量进行粒子识别。