An exclusive event generator for e+e- scan experiments
An exclusive event generator for e+e- scan experiments
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用于电子扫描实验的专属事件生成器
DOI：
10.1088/1674-1137/38/8/083001
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
平荣刚
中科院分区：
文献类型：
--
作者：
平荣刚
为包括初态辐射在内的e+e扫描实验设计了一个专用的事件产生器，其校正精度可达二阶。该生成器是在BesEvtGen框架内编写的。有70种强子衰变模式可用，从两个介子质量阈值到大约6GeV的垂直质心能量覆盖。初态辐射校正精度达到KKMC发生器所能达到的水平。与计算初始状态的修正因子有关的不确定度。辐射主要由与能量相关的玻恩截面的测量决定。
An exclusive event generator is designed for e+e- scan experiments, including initial state radiation.eects up to the second order correction. The generator is coded within the framework of BesEvtGen. There.are seventy hadronic decay modes available, with eective center-of-mass energy coverage from the two pion mass.threshold up to about 6 GeV. The accuracy achieved for the initial state radiation correction reaches the level achieved.by the KKMC generator. The uncertainty associated with the calculation of the correction factor to the initial state.radiation is dominated by the measurements of the energy-dependent Born cross section.