论文标题
将ISR校正应用于$ e^+e^ - $ HADRONIC横截面测量的一种迭代加权方法
An Iterative Weighting Method to Apply ISR Correction to $e^+e^-$ Hadronic Cross-section Measurements
论文作者
论文摘要
初始状态辐射（ISR）在$ e^+$$ e^ - $碰撞实验（例如besiii）中起重要作用。为了纠正$ e^+e^ - $ nihilation的HADRONIC横截面中的ISR效应，此处提出了一种迭代方法，即在此提出了权重模拟ISR事件，以评估事件选择的效率和观察到的横截面的ISR校正因子。模拟的ISR事件仅生成一次，并且所获得的横截面形状被迭代地使用相同的模拟ISR事件来评估效率和校正，直到结果收敛为止。与迭代产生ISR事件的方法相比，提出的加权方法提供了一致的结果，并将所需的计算时间和磁盘空间减少了五倍或更多，从而加速了$ E^+E^+E^ - $ HADRONIC横断面测量。
Initial state radiation (ISR) plays an important role in $e^+$$e^-$ collision experiments such as the BESIII. To correct the ISR effects in measurements of hadronic cross-sections of $e^+e^-$ annihilation, an iterative method that weights simulated ISR events is proposed here to assess the efficiency of event selection and the ISR correction factor for the observed cross-section. The simulated ISR events were generated only once, and the obtained cross-sectional line shape was used iteratively to weigh the same simulated ISR events to evaluate the efficiency and corrections until the results converge. Compared with the method of generating ISR events iteratively, the proposed weighting method provides consistent results, and reduces the computational time and disk space required by a factor of five or more, thus speeding-up $e^+e^-$ hadronic cross-section measurements.
