DirectDM takes the Wilson coefficients of relativistic operators that couple DM to the SM quarks, leptons, and gauge bosons and matches them onto a non-relativisitc Galilean invariant EFT in order to caclulate the direct detection scattering rates.
You can get the latest version of DirectDM on github.
The included example.m file has basic examples for using the functions provided by the code.
Here is a simple example assuming that the notebook or .m file are in same directory as ./DirectDM/.
Load the package
AppendTo[$Path,NotebookDirectory[]];
<<DirectDM`
Set the DM type to a Dirac fermion and set some Wilson coefficients in the 3 flavor basis
SetDMType["D"]
Do[SetCoeff["3Flavor", Q6[1,f], 1/100^2], {f,{"u","d"}}]
SetCoeff["3Flavor", Q7[1], 1/100^3]
Match the 3 flavor Wilson coefficients onto the non-relativistic ones
ComputeCoeffs["3Flavor","NR"]
Get the list of proton and neutron NR Wilson coefficients (separate lists)
CoeffsList["NR_p"]
CoeffsList["NR_n"]
If you use DirectDM please cite us! To get the BibTeX entries, click on: inspirehep query
- Fady Bishara (University of Oxford)
- Joachim Brod (TU Dortmund)
- Jure Zupan (University of Cincinnati)
- Benjamin Grinstein (UC San Diego)
DirectDM is distributed under the MIT license.
