Flav-Io/Flavio V0.27

Running masses and couplings from CRunDec This release replaces the old implementation of running quark masses and couplings by making use of the CRunDec package by F. Herren and M. Steinhauser. This was made possible by directly wrapping the C code in a new Python package rundec-python imported by flavio. By providing binary wheels for Windows, Linux, and Mac OS on PyPI, the package can be easily installed without compilation. The new implementation speeds up the calculation of the running α s and quark masses by more than two orders of magnitude! Running Wilson coefficients from WETrunner This release replaces the old implementation of running Wilson coefficients, based on numerical integration of the RGEs, by the "exact" leading order evolution matrices as computed in arXiv:1704.06639. This speeds up the calculation of running Wilson coefficients by a factor of 5, with more potential for improvement in the future. New dependencies Due to the above improvements, there are a number of new dependencies: wetrunner and rundec , as well as the most recent version of wcxf . These will be automatically installed when you run pip3 install --upgrade flavio . If you are using a development installation, you can install them manually: pip3 install --upgrade rundec wetrunner wcxf