Performance and development plans for the Inner Detector trigger algorithms at ATLAS

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Martin-Haugh, Stewart^1

Science and Technologies Facilities Council, Rutherford Appleton Laboratory, Didcot, Harwell Oxford

OX11 0QX, United Kingdom^1

关键词: Development plans;    Execution time;    Future improvements;    Inner Detector;    Single stage;    Tracking algorithm;    Trigger algorithms;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/1/012024/pdf
DOI  :  10.1088/1742-6596/513/1/012024

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A description of the algorithms and the performance of the ATLAS Inner Detector trigger for LHC Run 1 are presented, as well as prospects for a redesign of the tracking algorithms in Run 2. The Inner Detector trigger algorithms are vital for many trigger signatures at ATLAS. The performance of the algorithms for electrons is presented. The ATLAS trigger software will be restructured from two software levels into a single stage which poses a big challenge for the trigger algorithms in terms of execution time and maintaining the physics performance. Expected future improvements in the timing and efficiencies of the Inner Detector triggers are discussed, utilising the planned merging of the current two stages of the ATLAS trigger.