PIENU: Rare Decay Measurements

PIENU：罕见的衰减测量

• 批准号: 157985-2013
• 负责人: Bryman, Douglas
• 金额: $ 4.37万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569523
• 关键词: PIENU; Rare; Decay; Measurements

Precise measurements of rare pion decays which have precise Standard Model predictions enable exacting tests of current theories and searches for new physics at extremely high mass scales. Prominent among such processes is the branching ratio of the decay of the charged pion to an electron and a neutrino which provides the best test of the principle of electron-muon universality and severely constrains hypotheses for physics beyond the Standard Model. The PIENU experiment at TRIUMF is aimed at a measurement of the ratio of rates for pion decay to electrons and muons with an improvement in precision by an order of magnitude. This proposal will support the operation, personnel, and data analysis of the PIENU experiment which is underway.

对具有精确标准模型预测的罕见介子衰变的精确测量使精确