论文标题
超子数量分布累积物的纯度校正
Purity correction for cumulants of hyperon number distribution
论文作者
论文摘要
我们提出了从超子数量分布的累积物中减去组合背景的纯度校正。我们认为，可以将侧带的累积和混合材料与信号区域的背景颗粒相当的堆积物和混合物，可用于校正。通过引入重建效率和背景的效果，在简单的玩具模型中证明了该方法。我们表明，可以优化超子重建的拓扑切割参数，以在纯度和效率校正后达到最佳的统计意义。该方法将使我们能够测量净 - 巴里昂，网络纠缠的累积物及其与常规方法更好的功绩相关性。
We propose a purity correction to subtract effects of combinatorial backgrounds from cumulants of hyperon number distributions. We argue that cumulants and mix-cumulants of sidebands, whose yield is comparable with that of background particles in the signal region, can be used for the correction. The method is demonstrated in a simple toy model by introducing effects of reconstruction efficiencies and backgrounds. We show that topological cut parameters for hyperon reconstructions can be optimized to achieve the best statistical significance after purity and efficiency corrections. The method will enable us to measure cumulants of net-baryon, net-strangenss, and their correlations with better figure of merit than the conventional approach.
