标题： 强子能量重建在ATLAS桶部原型组合量能器的非参数方法框架中 显示英文标题

标题： Hadron Energy Reconstruction for the ATLAS Barrel Prototype Combined Calorimeter in the Framework of the Non-parametrical Method

摘要： 强子能量重建对于Atlas圆柱体原型组合量能器，包括铅-液态氩电磁部分和铁-闪烁体强子部分，在非参数方法框架下已经完成。 该方法仅使用已知的e/h比值和电子标定常数，不需要通过最小化技术确定任何参数，并可用于第一级触发中的快速能量重建。 获得的能量均值重建在 $\pm 1%$之内，分数能量分辨率是 $[(58\pm3)% \sqrt{GeV}/\sqrt{E}+(2.5\pm0.3)%]\oplus (1.7\pm0.2) GeV/E$。 获得的组合量能器电磁部分的e/h比值为 $1.74\pm0.04$，与该电磁量能器的预测 $e/h > 1.7$相符。 给出了对纵向强子簇射发展的研究结果。 数据是在CERN SPS的H8束流线上采集的，使用的是10 -- 300 GeV的π介子。 显示英文摘要

摘要： Hadron energy reconstruction for the Atlas barrel prototype combined calorimeter, consisting of the lead-liquid argon electromagnetic part and the iron-scintillator hadronic part, in the framework of the non-parametrical method has been fulfilled. This method uses only the known e/h ratios and the electron calibration constants and does not require the determination of any parameters by a minimization technique and can be used for the fast energy reconstruction in the first level trigger. The obtained reconstruction of the mean values of energies is within $\pm 1%$ and the fractional energy resolution is $[(58\pm3)% \sqrt{GeV}/\sqrt{E}+(2.5\pm0.3)%]\oplus (1.7\pm0.2) GeV/E$. The obtained value of the e/h ratio for electromagnetic compartment of the combined calorimeter is $1.74\pm0.04$ and agrees with the prediction that $e/h > 1.7$ for this electromagnetic calorimeter. The results of the study of the longitudinal hadronic shower development are presented. The data have been taken in the H8 beam line of the CERN SPS using pions of 10 -- 300 GeV.