KLOE探测器电磁量能器中团簇的合并与分裂
Merging and splitting of clusters in the electromagnetic calorimeter of the KLOE detector
摘要：
这项工作是在KLOE合作的框架内进行的，研究了DAFNE加速器中电子和正电子碰撞中产生的phi介子的衰变。本论文的主要目的是研究高多重数γ量子衰变中团簇合并和分裂的影响，这些效应最多是有偏的。为此，我们在FLUKA包中实现了桶式电磁量能器的完整几何形状和真实的材料组成。准备的Monte Carlo模拟程序允许实现快速生成的检测器响应分别为每个感兴趣的反应。该程序被用来研究重建效率与KLOE聚类算法作为光阴极量子效率的函数。它也被用来研究合并和分裂概率作为量子效率的函数。所进行的研究表明，量子效率的提高并不能显着改善团簇的识别。估算了η介子衰变为3个中性π介子和K_短介子衰变为2个中性π介子时这些效应的影响。
英文摘要：
The work was carried out in the framework of the KLOE collaboration studying the decays of the phi meson produced in the DAFNE accelerator in the collisions of electron and positron. The main aim of this thesis was investigation of the influence of the merging and splitting of clusters in decays with the high multiplicity of gamma quanta, which are at most biased by these effects. For this aim we implemented the full geometry and realistic material composition of the barrel electromagnetic calorimeter in FLUKA package. The prepared Monte Carlo based simulation program permits to achieve a fast generation of the detector response separately for each interested reaction. The program was used to study the reconstruction efficiency with the KLOE clustering algorithm as a function of the photocathode quantum efficiency. It was also used to investigate merging and splitting probabilities as a function of the quantum efficiency. The conducted studies indicated that the increase of quantum efficiency does not improve significantly the identification of clusters. The influence of these effects was estimated for eta meson decays into 3 neutral pions and K_short meson into 2 neutral pions.
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。
