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arXiv 2101.02182nucl-thhep-phnucl-ex
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重叠粒子集阶乘矩和累积量的效率修正

Efficiency corrections for factorial moments and cumulants of overlapping sets of particles

Volodymyr Vovchenko, Volker Koch

摘要:

在这篇文章中,我们讨论了与非对角累积量和阶乘矩测量的效率校正相关的微妙之处,当我们处理重叠的粒子集时,例如质子数和带正电粒子数之间的相关性。特别是,我们讨论了重离子实验中经常遇到的情况,首先重建所有的电荷,然后从这些电荷中选择质子通过一个额外的粒子识别程序。当探测效率服从二项分布时,给出了效率修正公式。

英文摘要:

In this note we discuss subtleties associated with the efficiency corrections for measurements of off-diagonal cumulants and factorial moments for a situation when one deals with overlapping sets of particles, such as correlations between numbers of protons and positively charged particles. In particular, we discuss the situation commonly encountered in heavy-ion experiments, where first all charges are reconstructed and then protons are selected from these charges by an additional particle identification procedure. We present the efficiency correction formulas for the case when the detection efficiencies follow a binomial distribution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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