Dark Atomic Response Tabulator (DarkART)

DarkART is a C++ tool for the computation and tabulation of atomic response functions for direct sub-GeV dark matter (DM) searches. It supersedes the previous python tool DarkARC for better performance and improved software design.

GENERAL NOTES

• This code computes the four atomic response functions introduced in the paper [arXiv:1912.08204]. The first response function is also known as the ionization form factor.
• The computations are performed in parallel using openmp library.

Repository content

The included folders are:

• bin/: This folder contains the executable after successful installation together with the configuration files.
• data/: Contains files including the RHF coefficients of the initial electron wavefunctions.
• external/: This folder will only be created and filled during the build with CMake and will contain the libphysica library.
• include/: All header files of DarkART can be found here.
• results/: Each run of DarkART generates result files in a dedicated sub-folder named after the run's ID, which is specified in the configuration file.
• src/: Here you find the source code of DarkART.
• tests/: All code and executable files of the unit tests are stored here.

DEPENDENCIES

• arb
• boost
• CMake
• GSL
• libconfig
• libphysica
• openmp

The libphysica and libconfig libraries will be downloaded and built automatically using CMake (if not already installed). The other libraries need to be installed beforehand.

Installation of dependencies

On macOS, you can install the dependencies using homebrew,

>brew install arb
>brew install boost
>brew install cmake
>brew install gsl
>brew install libconfig
>brew install libomp

or on a Linux machine with APT:

>sudo apt-get update
>sudo apt-get install arb
>sudo apt-get install libboost-all-dev
>sudo apt-get install cmake
>sudo apt-get install libgsl-dev
>sudo apt-get install -y libconfig-dev
>sudo apt-get install libomp-dev

Alternatively, libconfig can be also built from the source files via

>wget https://hyperrealm.github.io/libconfig/dist/libconfig-1.7.2.tar.gz
>tar -xvzf libconfig-1.7.2.tar.gz
>pushd libconfig-1.7.2
>./configure
>make
>sudo make install
>popd

The installation of libconfig is not strictly necessary as the library will also be build during the libphysica build if CMake cannot locate libconfig elsewhere.

DOWNLOAD & INSTALLATION

The DarkART source code can be downloaded by cloning this git repository:

>git clone https://github.com/temken/DarkART.git 
>cd DarkART

The code is compiled and the executable is created using CMake.

>cmake -E make_directory build
>cd build
>cmake -DCMAKE_BUILD_TYPE=Release -DCODE_COVERAGE=OFF ..
>cmake --build . --config Release
>cmake --install .

If everything worked well, there should be the executable DarkART in the /bin/ folder.

CITING THIS CODE

If you decide to use this code, please cite the latest archived version,

[DOI:10.5281/zenodo.6046225]

Bibtex entry

@software{DarkART,
  author = {Emken, Timon},
  title = {{Dark Atomic Response Tabulator (DarkART)[Code, v0.1.0]}},
  year         = {2021},
  publisher    = {Zenodo},
  version      = {v0.1.0},
  doi          = {DOI:10.5281/zenodo.6046225},
  url          = {https://doi.org/10.5281/zenodo.6046225},
  howpublished={The code can be found under \url{https://github.com/temken/darkart}.}
}

as well as the original publications,

Catena, R., Emken, T. , Spaldin, N., and Tarantino, W., Atomic responses to general dark matter-electron interactions, Phys.Rev.Research 2 (2020) 033195, [arXiv:1912.08204].

VERSIONS

• 11.02.2021: Release of version 0.1.0

AUTHORS & CONTACT

The author of this tool is Timon Emken.

For questions, bug reports or other suggestions please contact timon.emken@fysik.su.se or, even better, open an issue.

LICENSE

This project is licensed under the MIT License - see the LICENSE file.