An Improved IGEX 76Ge Double Beta Decay Experiment with Pulse Shape Discrimination

具有脉冲形状鉴别的改进的 IGEX 76Ge 双 Beta 衰变实验

• 批准号: 9515454
• 负责人: Frank Avignone
• 金额: $ 21.67万
• 依托单位: University of South Carolina at Columbia
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9515454&HistoricalAwards=false
• 关键词: Improved; IGEX; 76Ge; Double; Beta

The collaboration of Prof. Avignone in the International Germanium Experiment (IGEX) is supported by this grant. The objective of IGEX is a determination of the half-life for zero-neutrino double-beta decay in Ge-76 and, as a by- product, measure precision spectra for two-neutrino double- beta decay which will constitute a background for other exotic decays. The observation of zero-neutrino double-beta decay would require the neutrino to have a finite mass and the detectors in this experiment should be able to push the neutrino mass limit well below 1 eV.

Avignone教授在国际锗实验（IGEX）中的合作得到了这笔赠款的支持。 IGEX的目标是确定Ge-76中零中微子双β衰变的半衰期，并作为副产品测量将构成其他奇异衰变背景的双中微子双β衰变的精确光谱。 零中微子双β衰变的观测需要中微子有一个有限的质量，而这个实验中的探测器应该能够将中微子的质量极限推到1 eV以下。