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选取辐射Bhabha样本,研究了北京谱仪Ⅱ(BESⅡ)桶部簇射计数器(BSc)对中性径迹的沉积能量和空间位置的测量,定出了实际数据的测量误差.并利用Monte carlo0产生的e+e-→γγ事例定出Mc数据的能量及位置测量误差.结果已用于BESⅡ运动学拟合,能改善物理分析结果.
北京谱仪Ⅱ中性径迹测量误差的确定
【摘 要】
：
选取辐射Bhabha样本,研究了北京谱仪Ⅱ(BESⅡ)桶部簇射计数器(BSc)对中性径迹的沉积能量和空间位置的测量,定出了实际数据的测量误差.并利用Monte carlo0产生的e+e-→γγ事
【机 构】
：
中国科学院高能物理研究所
【出 处】
：
高能物理与核物理
【发表日期】
：
2004年期
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