# Links 🔗

I am a strong advocate of free and open-source software (FOSS), as it benefits the whole community. Here is a list of links to software that I at some point used or is related to my work.

### Monte Carlo codes

MCFM Parton level Monte Carlo with many processes at NLO and at NNLO, as well as W and Z at N3LO. Includes

*q*_{T}and jet-veto resummation.MATRIX Parton level Monte Carlo with many processes at NNLO and an interface to RadISH

*q*_{T}- and jet-veto resummation.CuTe DY,Z,W,H production at NNLO with N

^{3}LO resummation at small*p*_{T}PeTeR Photon,Z,W,H production at NNLO with threshold resummation at large

*p*_{T}SusHi Higgs production up to N

^{3}LO in the HTL with top-quark mass effects, also in BSM modelsggHiggs Higgs production up to N

^{3}LO in the HTL with small-x resummation and top-quark mass effectsDYTurbo Upgraded version of DYNNLO/DYres with higher-order resummation.

DYNNLO/DYres Monte Carlo codes for DY production at NNLO and resummation at NNLL

ResBos Small

*p*_{T}resummation for W,Z,*γ*,H,*γ**γ*,ZZ + jet processes at NLO.HEJ High Energy Jets: Monte Carlo style resummation for large invariant masses between jets in multijet processes and H+jets, W+jets.

vh@nnlo VH production at NNLO.

vbfnlo Code for vector boson fusion processes at NLO.

##### Top Quark specific codes

- ZTOP Single top production at NLO in the stable top approximation.
- TOPAZ Computes various top-quark processes at NLO in the narrow-width approximation. Various amplitudes and routines are from MCFM

#### Event Generators

- Sherpa General purpose event generator with an interface to Pythia.

##### Parton shower and beyond

##### Other HEP predictions

- NNTopDec Top quark decay at NNLO

#### Libraries

- LHAPDF Framework for PDF sets and their evolution.
- Chaplin Numerical evaluation of Harmonic polylogarithms up to weight four with complex arguments.
- PDF4LHC and MetaPDF combination of different PDF sets
- VVamp Two-loop helicity amplitudes for VV production with decays.

#### Tools for loop calculations

- Reduze (IBP) reduction of loop integrals. Tested.
- Kira (IBP) reduction of loop integrals. Tested, same input file format as Reduze. Faster than Reduze (2.2) and has nicer error handling in my opinion.
- FIRE (IBP) reduction of loop integrals in Mathematica. Tested and convenient to use.
- FIESTA Mathematica sector decomposition code that I extensively used in projects. Being written in Mathematica makes this convenient to use.
- SecDec Sector decomposition code in Python/C++
- HypExp Mathematica package for the expansion of hypergeometric functions.
- SoftSERVE Evaluation of soft functions that can be defined in terms of two light-like Wilson lines in SCET.