Mini-AOD: A New Analysis Data Format for CMS
| Autor: | Andrea Rizzi, Carl Vuosalo, Giovanni Petrucciani |
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| Rok vydání: | 2017 |
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History
Physics - Instrumentation and Detectors Work (physics) FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) Object (computer science) High Energy Physics - Experiment Computer Science Applications Education Numerical precision High Energy Physics - Experiment (hep-ex) Computer engineering Flow (mathematics) Software deployment Transverse momentum Data analysis Detectors and Experimental Techniques Derived Data |
| DOI: | 10.48550/arxiv.1702.04685 |
| Popis: | The CMS experiment has developed a new analysis object format ("Mini-AOD") targeting approximately 10% of the size of the Run 1 AOD format. The motivation for the Mini-AOD format is to have a small and quickly derived data format from which the majority of CMS analysis users can start their analysis work. This format is targeted at having sufficient information to serve about 80% of CMS analysis, while dramatically simplifying the disk and I/O resources needed for analysis. Such large reductions were achieved using a number of techniques, including defining light-weight physics-object candidate representations, increasing transverse momentum thresholds for storing physics-object candidates, and reduced numerical precision when it is not required at the analysis level. In this contribution we discuss the critical components of the Mini-AOD format, our experience with its deployment and the planned physics analysis flow for Run 2 based on the Mini-AOD. Comment: 6 pages, 4 figures, presented at the 21st International Conference on Computing in High Energy and Nuclear Physics (CHEP2015). Author list revised to properly note the CMS Collaboration |
| Databáze: | OpenAIRE |
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