摘要
对测量τ寿命的碰撞参数法中碰撞参数的符号作了研究后，把碰撞参数为负值的几率放入拟合公式进行Ｌ３实验数据的τ寿命拟合。
The sign-flip probability of the impact parameter in the measurement of the tau lifetime is studied. The probability of the impact parameter with the negative value is introduced into the formula to fit the tau lifetime in the L3 experiment.The systematic errors of the drift velocity and grid time calibration are also studied by using the special designed L3 Time Expansion Chamber (TEC).
出处
《高能物理与核物理》
CSCD
北大核心
1994年第9期794-799,共6页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
关键词
碰撞参数
寿命
Τ轻子
拟合
误差
impact parameter, decay length, lifetime, calibration.
