Abstract

The H1 experiment recorded an integrated luminosity of almost 0.5pb−1 (0.3G events in HERA-I, 0.8G events in HERA-II) at the ep collider HERA in the years 1992 through 2007. The goal of the H100 project is to provide a data storage and analysis environment and in particular standardised and fast event selection facilities that improve the overall H1 physics analysis efficiency and performance. The software is based on and embedded in the ROOT framework, which provides a generic collection of tools for high-performance I/O jobs, as well as for the interactive analysis environment and for the event display. In this coherent approach all different physics analyses employ the same data and MC samples, which provide the users with the best possible knowledge of the H1 collaboration. The analysis files are produced centrally in a very efficient semi-automatic procedure, allowing a very short turn-around time when installing new reconstruction and analysis software versions.

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