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QCDLoop: an object-oriented one-loop scalar Feynman integrals framework

General information

Homepage with library description: https://qcdloop.web.cern.ch

If you use this code in your publication, please cite arXiv:0712.1851 and arXiv:1605.03181.

Download

You can obtain QCDLoop releases directly from the github repository:

https://github.com/scarrazza/qcdloop/releases

For the last development version you can clone the master code:

git clone https://github.com/scarrazza/qcdloop.git

For the latest tag:

git tag -l
git checkout tags/tag_name

Installation

From source

Checkout the code and compile the code using the following procedure:

mkdir build
cd build
cmake ..
make && make install

By the default, if prefix is not set the program is installed in /usr/local. If you define a custom prefix, use the -DCMAKE_INSTALL_PREFIX option and remember to export qcdloop/lib to the LD_LIBRARY_PATH. QCDLoop requires a compiler with C++11 and quadmath features (e.g. gcc >= 5).

Other qcdloop cmake options are:

  • ENABLE_EXAMPLES, build examples in C++, default OFF.
  • ENABLE_FORTRAN_WRAPPER, include fortran wrapper in the library, default ON.

The fortran wrapper follows the previous syntax in qcdloop, see details in table 2 of https://arxiv.org/pdf/1605.03181.pdf.

From conda-forge

QCDLoop is packaged and distributed on conda-forge for the following platforms:

Conda Version Conda Platforms

To install and add QCDLoop to a project with pixi, from the project directory run

pixi add qcdloop

and to install into a particular conda environment with conda, in the activated environment run

conda install --channel conda-forge qcdloop

Contact Information

Maintainer: Stefano Carrazza