If you make use of DarkRadiation in a publication, please cite 1505.07459.

Dark Radiation

This code package generates the signature described in arXiv:1505.07459 (see e.g. Fig.1)

The output are full events in hepmc-format.

Prerequisites:

* MadGraph5

* HepMC2

* Pythia v.8.325 (too be linked with HepMC2 [ --with-hepmc2=.. ])

Note: The version requirement on Pythia8 is crucial, as there is a bug in all current versions of Pythia. This code package comes with a patch for version 8.325 that is fully backwards compatible.

Installation:

1. Enter code directory

2. Set path to MadGraph5 and Pythia8 in 'paths.inc'

3. Execute 'pythia_patch.sh'

How to run:

1. Set model parameters in 'params.inc'

2. Execute 'run.sh'

3. A hepmc-event-file called 'events.hepmc' is generated in the code directory.