or A Common Tracking Software if you do not like recursive acronyms
Acts is an experiment-independent toolkit for (charged) particle track reconstruction in (high energy) physics experiments implemented in modern C++.
Acts is developed in C++ and is build using CMake. Building the core library requires a C++17 compatible compiler, Boost, and Eigen. The following commands will clone the repository, configure, and build the core library
git clone https://github.com/acts-project/acts <source-dir> cmake -B <build-dir> -S <source-dir> cmake --build <build-dir>
For more details, e.g. specific versions and additional dependencies, have a look at the getting started guide. If you find a bug, have a feature request, or want to contribute to Acts, have a look at the contribution guide.
The repository contains all code of the Acts projects, not just the core library that a physics experiment is expected to use as part of its reconstruction code. All optional components are disabled by default. Please see the getting started guide on how-to enable them.
Core/contains the core library that provides functionality in the
Plugins/contains plugins for core functionality that requires additional external packages. The functionality also resides in the
Fatras/provides fast track simulation tools based on the core library. This is not part of the core functionality and thus resides in the separate
Examples/contains simulation and reconstruction examples. These are internal tools for manual full-chain development and tests and reside in the
Tests/contains automated unit tests, integration tests, and (micro-)benchmarks.
thirdparty/contains external dependencies that are usually not available through the system package manager.
Contributors to the Acts project are listed in the AUTHORS file.
The Acts project contains copies of the following external packages: