About ROOT

ROOT is an object oriented framework for large scale data analysis.
ROOT User's Guide and its release notes are available.

ROOT is installed on d0mino .

ROOT new structure

In version v2_23, ROOT has reorgnized their libraries to enhance modulization and minimized library dependencies. Here is the graphic picture for ROOT new structure.

ROOT at Fermilab:

Using ROOT as Run II Physics Analysis Tool

The ROOT project is provided by the ROOT Team headed by René Brun. Fermilab Physics Analysis Software Group provides local suports.
D0 will use ROOT as the physics analysis tool in Run II as PAW replacement.

ROOT: Executive Summary (from ROOT authors)

The ROOT system provides a set of OO frameworks with all the functionality needed to handle and analyse large amounts of data in a very efficient way. Having the data defined as a set of objects, specialised storage methods are used to get direct access to the separate attributes of the selected objects, without having to touch the bulk of the data. Included are histograming methods in 1, 2 and 3 dimensions, curve fitting, function evaluation, minimisation, graphics and visualization classes to allow the easy setup of an analysis system that can query and process the data interactively or in batch mode.


Qizhong Li
Last modified: Thu Aug 23 13:55:28 CDT 2007