DD4hep/DDG4/README.md

0001 ![DDG4](../doc/logo_small.png)
0002
0003 DDG4: The simulation toolkit of DD4hep
0004 ======================================
0005
0006 Simulating the detector response is an essential tool in high energy physics
0007 to analyze the sensitivity of an experiment to the underlying physics.
0008 Such simulation tools require a detailed though convenient detector description as
0009 it is provided by the DD4hep toolkit DDG4 which uses [Geant4](https://geant4.web.cern.ch/)
0010 to simulate the energy response of a given apparatus.
0011 The toolkit implements a modular and flexible approach to simulation activities using Geant4.
0012 User defined simulation applications using DDG4 can easily be configured,
0013 extended using specialized action routines.
0014
0015 The design is strongly driven by easy of use;
0016 developers of detector descriptions and applications using
0017 them should provide minimal information and minimal specific
0018 code to achieve the desired result.
0019
0020 DDG4 also supports the fast Geant4 simulation interfaces GFlash and FastSim
0021 to speed up certain simulation procedures.
0022
0023 For further details please see the user manual in the formats
0024 [HTML](https://dd4hep.web.cern.ch/dd4hep/usermanuals/DDG4Manual/DDG4Manual.html)
0025 and
0026 [PDF](https://dd4hep.web.cern.ch/dd4hep/usermanuals/DDG4Manual/DDG4Manual.pdf)
0027
0028 Some usage examples for DDG4 can be found [here](../examples/DDG4)
0029
0030
0031 ![HORIZON2020](../doc/usermanuals/DD4hep/figures/AIDA-2020.png)