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arXiv physics/0502068physics.data-an
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一种新的多重性强散射事例径迹重建的串香蕉模板方法及其固件实现

A novel String Banana Template Method for Tracks Reconstruction in High Multiplicity Events with significant Multiple Scattering and its Firmware Implementation

P. Kulinich, S. Basilev, V. Krylov

摘要:

提出了一种新的弦香蕉模板法(SBTM),并将其应用于相对论重离子碰撞事件的离线分析。该方法的主要思想是利用三重符合选择的航迹集合的特征。采用两步航迹模型:第一步-在选定的集合上平均,第二步-每个事件相关。它考虑了该特定轨迹的多重散射(MS)。SBTM依赖于使用由精确的蒙特卡罗模拟生成的存储模板,因此对于2D光谱仪的情况,它更省时。在如此困难的条件下进行轨道重建所需的所有数据都可以以方便的格式准备,以便快速使用。其基于模板的性质和SBTM跟踪模型实际上非常接近命中的事实意味着它可以在固件处理器中实现。在这份报告中,提出了一个基于固件的预处理器的框图,用于在CMS类硅跟踪器的轨道重建。

英文摘要:

Novel String Banana Template Method (SBTM) for track reconstruction in difficult conditions is proposed and implemented for off-line analysis of relativistic heavy ion collision events. The main idea of the method is in use of features of ensembles of tracks selected by 3-fold coincidence. Two steps model of track is used: the first one - averaged over selected ensemble and the second - per event dependent. It takes into account Multiple Scattering (MS) for this particular track. SBTM relies on use of stored templates generated by precise Monte Carlo simulation, so it's more time efficient for the case of 2D spectrometer. All data required for track reconstruction in such difficult conditions could be prepared in convenient format for fast use. Its template based nature and the fact that the SBTM track model is actually very close to the hits implies that it can be implemented in a firmware processor. In this report a block diagram of firmware based pre-processor for track reconstruction in CMS-like Si tracker is proposed.

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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