apfel
- Ebuilds: 2, Testing: 3.1.1 Description:
APFEL is a library able to perform DGLAP evolution up to NNLO in QCD and to NLO in QED, both with pole and MSbar masses. The coupled DGLAP QCD+QED evolution equations are solved in x-space by means of higher order interpolations and Runge-Kutta techniques.
Homepage:
https://apfel.hepforge.org/
https://apfel.mi.infn.it/
https://github.com/scarrazza/apfel
License: GPL-3+
apfelgrid
- Ebuilds: 1, Testing: 1.0.5 Description:
The APFELgrid plugin is a tool designed to accelerate the computation of physical observables at hadron colliders, by means of combining the interpolated weight-grids provided by the APPLgrid project with the evolution of parton densities provided by APFEL. The tool is aimed at PDF fitting groups, as it allows for the extremely rapid recalculation of cross-sections when varying the input PDF.
APFELgrid generates FastKernel (or FK) tables which reduce the computation of NLO pQCD predictions to a particuarly compact form in terms of PDFs at a single initial scale.
Homepage:
https://github.com/nhartland/APFELgrid
https://github.com/zenaiev/APFELgrid
License: MIT
applgrid
- Ebuilds: 1, Testing: 1.6.32 Description:
The APPLgrid project provides a fast and flexible way to reproduce the results of full NLO calculations with any input parton distribution set in only a few milliseconds rather than the weeks normally required to gain adequate statistics.
Homepage:
https://applgrid.hepforge.org/
License: GPL-3
blackhat
- Ebuilds: 1, Testing: 0.9.9 Description:
Library for the evaluation of QCD one-loop matrix elements
Homepage:https://blackhat.hepforge.org/ License: GPL-2
checkmate
- Ebuilds: 2, Testing: 9999 Description:
CheckMATE (Check Models At Terascale Energies) is a program package which accepts simulated event files in many formats for any given model. The program then determines whether the model is excluded or not at 95% C.L. by comparing to many recent experimental analyses. Furthermore the program can calculate confidence limits and provide detailed information about signal regions of interest. It is simple to use and the program structure allows for easy extensions to upcoming LHC results in the future.
Homepage:https://checkmate.hepforge.org/
ckmutil
- Ebuilds: 1, Testing: 0.3.2 Description:
A package containing useful functions to deal with the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix or the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) lepton mixing matrix in high energy physics.
Homepage:https://github.com/DavidMStraub/ckmutil License: MIT
cocoa
- Ebuilds: 1, Testing: 0.1.1 Description: A nearly-hermetic calorimeter simulated with Geant4 and interfaced to the Pythia8 event generator.
Homepage:https://github.com/cocoa-hep/cocoa-hep/ License: GPL-3
coffea
- Ebuilds: 2, Testing: 9999 Description:
coffea is a prototype package for pulling together all the typical needs of a high-energy collider physics (HEP) experiment analysis using the scientific python ecosystem. It makes use of uproot and awkward-array to provide an array-based syntax for manipulating HEP event data in an efficient and numpythonic way. There are sub-packages that implement histogramming, plotting, and look-up table functionalities that are needed to convey scientific insight, apply transformations to data, and correct for discrepancies in Monte Carlo simulations compared to data.
Homepage:
https://github.com/CoffeaTeam/coffea
https://coffeateam.github.io/coffea/
License: BSD
contur
- Ebuilds: 1, Testing: 2.4.0 Description:
Exploring the sensitivity of unfolded collider measurements to BSM models.
Homepage:https://gitlab.com/hepcedar/contur/ License: GPL-3
decaylanguage
- Ebuilds: 4, Testing: 0.17.0 Description:
DecayLanguage implements a language to describe and convert particle decays between digital representations, effectively making it possible to interoperate several fitting programs. Particular interest is given to programs dedicated to amplitude analyses.
Homepage:https://github.com/scikit-hep/decaylanguage License: BSD
delphes
- Ebuilds: 2, Testing: 9999 Description:
Delphes is a C++ framework, performing a fast multipurpose detector response simulation. The simulation includes a tracking system, embedded into a magnetic field, calorimeters and a muon system. The framework is interfaced to standard file formats (e.g. Les Houches Event File or HepMC) and outputs observables such as isolated leptons, missing transverse energy and collection of jets which can be used for dedicated analyses. The simulation of the detector response takes into account the effect of magnetic field, the granularity of the calorimeters and sub-detector resolutions. Visualisation of the final state particles is also built-in using the corresponding ROOT library.
Homepage:
https://github.com/delphes/delphes
http://cp3.irmp.ucl.ac.be/projects/delphes
dpmjet-III
- Ebuilds: 1, Testing: 19.3.6 Description:
DPMJET-III is a Monte Carlo event generator for hadron, photon and nuclear collisions with a several decade-long history. DPMJET is an integral part of FLUKA, a fully integrated particle physics MonteCarlo simulation package, acting as event generator for nucleus-nucleus collisions above 5 GeV/nucleon and for hadronic collisions at high energies. DPMJET-III embeds the PHOJET event generator, which is used for simulations of hadron-hadron, photon-hadron and photon-photon collisions. This and future versions of PHOJET will be distributed as part of this DPMJET package. Both codes are interfaced to Pythia 6 for hadronization.
Homepage:
https://dpmjetiii.hepforge.org/
https://github.com/DPMJET/DPMJET
License: BSD
dyturbo
- Ebuilds: 1, Testing: 1.3.2 Description:
DYTurbo is a program for the calculation of the QCD transverse-momentum resummation of Drell–Yan cross sections up to approximate netx-to-next-to-next-to-next-to-leading (N4LLa) logarithmic accuracy, including the full kinematical dependence of the decaying lepton pair with the corresponding spin correlations and the finite-width effects.
Homepage:https://dyturbo.hepforge.org/ License: GPL-2
evade
- Ebuilds: 1, Testing: 0.2.0 Description:
A c++-11 library to efficiently obtain constraints from vacuum stability in BSM models with many scalar fields. The documentation for the library is available at jonaswittbrodt.gitlab.io/EVADE.
EVADE was developed by Jonas Wittbrodt in collaboration with Georg Weiglein and Wolfgang G. Hollik. If you use EVADE for a publication please always cite 1812.04644 and 1905.10234 and give reference to this website. 1812.04644 contains a detailed explanation of the method used by EVADE to judge the stability of the EW vacuum.
Homepage:
https://jonaswittbrodt.gitlab.io/EVADE/
https://gitlab.com/jonaswittbrodt/EVADE/-/tree/master?ref_type=heads
License: MIT
fastnlo
- Ebuilds: 1, Testing: 2.5 Description:
This allows fast theory predictions of these observables for arbitrary parton distribution functions (of regular shape), renormalization or factorization scale choices, and/or values of alpha_s(Mz) as e.g. needed in PDF fits or in systematic studies. Very time consuming complete recalculations are thus avoided.
Homepage:https://fastnlpo.hepforge.org/ License: GPL-2
feynrules
- Ebuilds: 1, Testing: 2.1 Description: A Mathematica package to calculate Feynman rules.
Homepage:https://feynrules.irmp.ucl.ac.be License: all-rights-reserved
ff
- Ebuilds: 1, Testing: 2.0 Description:
FF is a library to evaluate one-loop integrals needed for radiative corrections to scattering processes in particle physics. The idea of such a library is based on FormF by M. Veltman. Unfortunately this only runs in CDC and 68000 assembler, and uses very high precision (more than 100 digits) to overcome the numerical instabilities that plague these integrals. FF uses alternative algorithms which run in double precision Fortran 77. It is available by anonymous ftp.
Homepage:https://www.nikhef.nl//~t68/ff/ License: GPL-2
flavio
- Ebuilds: 2, Testing: 2.5.0 Description:
flavio is a Python package to compute observables in flavour physics, electroweak precision tests, Higgs physics, and other precision tests of the Standard Model, both in the Standard Model and in the presence of new physics encoded in Wilson coefficients of dimension-6 operators.
Homepage:https://github.com/flav-io/flavio License: MIT
golem95
- Ebuilds: 2, Testing: 1.3.3-r1 Description:
The program golem95 is a package for the numerical evaluation of integrals and tensor form factors entering the calculation of one-loop amplitudes with up to six external legs, written in Fortran 95.
A package for evaluation of scalar and tensor one-loop integrals
Homepage:https://golem.hepforge.org/ License: GPL-3
gosam
- Ebuilds: 3, Testing: 9999 Description:
GoSam is a general one-loop evaluator for matrix elements.
The program produces Fortran 90 code from a given process
description by evaluating Feynman diagrams and translating
the associated one-loop diagrams into code suitable for the
evaluation with Ninja, Golem95 and/or Samurai.
Homepage:
https://github.com/gudrunhe/gosam
https://gosam.hepforge.org/
hathor
- Ebuilds: 1, Testing: 2.0 Description:
Hathor calculates the total cross section for top-quark pair production in hadronic collisions.
The program takes into account recent theoretical developments such as approximate
next-to-next-to-leading order perturbative QCD corrections and it allows for studies of
the theoretical uncertainty by separate variations of the factorization and renormalization
scales. In addition it offers the possibility to obtain the cross section as a function of the
running top-quark mass. A GUI to simplify the usage is included as well.
Homepage:https://www.physik.hu-berlin.de/de/pep/tools/hathor.html License: GPL-2
hell
- Ebuilds: 2, Testing: 3.1 Description:
HELL is a code which resums the dominant small-x logarithms in DGLAP splitting functions (at LL and NLL) and in coefficient functions (at relative LL only, which is absolute NLL in DIS).
Homepage:https://www.roma1.infn.it/~bonvini/hell/ License: GPL-2
hellx
- Ebuilds: 1, Testing: 3.0 Description:
HELL is a code which resums the dominant small-x logarithms in DGLAP splitting functions (at LL and NLL) and in coefficient functions (at relative LL only, which is absolute NLL in DIS).
Homepage:https://www.roma1.infn.it/~bonvini/hell/ License: GPL-2
hjets
- Ebuilds: 1, Testing: 1.3 Description:
HJets is a tool for calculating electroweak cross sections for Higgs boson plus two and three jet production at NLO in QCD.
It is the code behind Phys.Rev.Lett. 111 (2013) 211802, and is available here .
Homepage:https://hjets.hepforge.org/ License: GPL-2
jetscape
- Ebuilds: 1, Testing: 3.6 Description:
JETSCAPE, a modular, task-based framework for simulating all aspects of heavy-ion collisions.
The JETSCAPE simulation framework is an overarching computational envelope for developing complete event generators for heavy-ion collisions. It allows for modular incorporation of a wide variety of existing and future software that simulates different aspects of a heavy-ion collision. For a full introduction to JETSCAPE, please see The JETSCAPE framework.
Homepage:
https://jetscape.org/
https://github.com/JETSCAPE/JETSCAPE/
https://arxiv.org/abs/1903.07706
License: GPL-3
lcio
- Ebuilds: 3, Testing: 02.22.06 Description:
LCIO ( Linear Collider I/O ) is a persistency framework and event data model for linear collider detector studies.
Homepage:https://github.com/iLCSoft/LCIO License: BSD
madanalysis5
- Ebuilds: 1, Testing: 1.10.4 Description:
MadAnalysis 5 is a framework for phenomenological investigations at particle colliders. Based on a C++ kernel, this program allows to efficiently perform, in a straightforward and user-friendly fashion, sophisticated physics analyses of event files such as those generated by a large class of Monte Carlo event generators.
Homepage:
https://github.com/MadAnalysis/madanalysis5
License: GPL-3
madgraph5
- Ebuilds: 3, Testing: 3.5.4 Description:
MadGraph5_aMC@NLO is a framework that aims at providing all the elements necessary for SM and BSM phenomenology, such as the computations of cross sections, the generation of hard events and their matching with event generators, and the use of a variety of tools relevant to event manipulation and analysis. Processes can be simulated to LO accuracy for any user-defined Lagrangian, an the NLO accuracy in the case of models that support this kind of calculations -- prominent among these are QCD and EW corrections to SM processes. Matrix elements at the tree- and one-loop-level can also be obtained.
Homepage:https://launchpad.net/mg5amcnlo License: UoI-NCSA
mcfm
- Ebuilds: 6, Testing: 9999 Description:
The program calculates cross-sections for various femtobarn-level processes at hadron-hadron colliders. A number of processes can be calculated at NLO order in QCD, while most other processes are included at NNLO order in QCD. The calculation of some processes can also account for next-to-leading order weak effects.
Homepage:
https://mcfm.fnal.gov
https://gitlab.com/APN-Pucky/mcfm
License: GPL-3+
ninja
- Ebuilds: 2, Testing: 1.2.0 Description:
Ninja is a public C++ library which implements the Integrand Reduction via Laurent Expansion method for the computation of one-loop integrals.
Homepage:
https://github.com/peraro/ninja
https://ninja.hepforge.org/
License: GPL-3+
njet
- Ebuilds: 3, Testing: 3.1.2 Description:
NJet is a library for multi-parton matrix elements up to two loops in massless QCD. NJet is based on the generalized unitarity program NGluon and uses QCDLoop/FF for scalar integrals and libqd for extended precision arithmetic. The two-loop finite remainders use PentagonFunctions++ for the integrals and Eigen for algebra.
Homepage:https://bitbucket.org/njet/njet License: GPL-2
nll-fast
- Ebuilds: 1, Testing: 3.1 Description:
NLL-fast is a computer program which computes the squark and gluino hadroproduction cross sections including next-to-leading order (NLO) supersymmetric QCD corrections and the resummation of soft gluon emission at next-to-leading-logarithmic (NLL) accuracy. NLL-fast also provides an estimate of the theoretical uncertainty due to scale variation and the parton distribution functions. The program reads in grid files with NLO and NLO+NLL results, the scale uncertainty and the pdf and alphas error and uses a fast interpolation routine to provide predictions for any value of squark and gluino masses in the mass ranges specified below. The results for the LHC collision energy of 13 TeV can be obtained with the latest 3.1 version, whereas earlier 2.1 (1.2) versions deliver cross sections for 8 (7) TeV. Results are obtained with the MSTW2008NLO (MSTW2008LO for the LO results), the CTEQ6.6M (CTEQ6L1) pdfs, and for version 3.1 also with the NNPDF3.0NLO (NNPDF3.0LO) set. Results for selected processes of squark and gluino production for 14, 33, and 100 TeV collision energy are also available in NLL-fast, see below.
Homepage:https://www.uni-muenster.de/Physik.TP/~akule_01/nnllfast/doku.php?id=nllfast License: GPL-2
nnll-fast
- Ebuilds: 2, Testing: 2.0 Description:
NNLL-fast is a computer program which computes the squark and gluino hadroproduction cross sections including approximate next-to-next-to-leading order (NNLOApprox) supersymmetric QCD corrections and the resummation of soft gluon emission at next-to-next-to-leading-logarithmic (NNLL) accuracy, including the resummation of Coulomb gluons with a NLO Coulomb potential and bound-state contributions below the production threshold. NNLL-fast also provides an estimate of the theoretical uncertainty due to scale variation, the parton distribution functions, and the value of the strong coupling αs. The program reads in grid files with NLO and NNLOApprox+NNLL results, the scale uncertainty and the PDF and αs error and uses a fast interpolation routine to provide predictions for any value of squark and gluino masses in the mass ranges specified below. The results are provided for the latest LHC collision energy of 13.6 TeV for Run 3, and will be updated for future runs of the LHC. The predictions are created with the recent PDF4LHC21_40_pdfas PDF sets.
Homepage:https://www.uni-muenster.de/Physik.TP/~akule_01/nnllfast/doku.php?id=start License: GPL-2
parton
- Ebuilds: 1, Testing: 0.2.1 Description:
parton is a Python package providing parton distribution functions and parton luminosities. It uses the PDF data files provided by the LHAPDF project. Its API is partially compatible to LHAPDF's Python API, even though only a subset of its features are implemented.
Homepage:https://github.com/DavidMStraub/parton License: MIT
pineappl-capi
- Ebuilds: 1, Testing: 0.6.1 Description:
This repository contains tools, libraries and interfaces to read and write PineAPPL interpolation grids, which store theoretical predictions for high-energy collisions independently from their PDFs.
Homepage:https://nnpdf.github.io/pineappl/ License: GPL-3+
pjfry
- Ebuilds: 1, Testing: 1.0.0 Description:
PJFry 1.0.0 - one loop tensor integral form-factors library
The algorithms are based on the results of http://arxiv.org/abs/1009.4436
Please cite arXiv:1009.4436 [hep-ph] if you use PJFry in scientific publications.
Homepage:https://github.com/Vayu/PJFry/ License: GPL-2
powheg-box-v2-W
- Ebuilds: 3, Testing: 4086 Description:
Single vector-boson production with decay, S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 0807 (2008) 060, arXiv:0805.4802
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
powheg-box-v2-Z
- Ebuilds: 3, Testing: 4086 Description:
Single vector-boson production with decay, S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 0807 (2008) 060, arXiv:0805.4802
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
powheg-box-v2-Zj
- Ebuilds: 3, Testing: 4086 Description:
NLO corrections merged with parton showers for Z+2 jets production using the POWHEG method, E. Re, arXiv:1204.5433
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
powheg-box-v2-dijet
- Ebuilds: 3, Testing: 4086 Description:
Jet pair production , S. Alioli, K. Hamilton, P. Nason, C. Oleari and E. Re, JHEP 1104 (2011) 081, arXiv:1012.3380
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
powheg-box-v2-directphoton
- Ebuilds: 4, Testing: 4110 Description:
Prompt photon production and photon-hadron jet correlations with POWHEG, T. Ježo, M. Klasen, C. Klein-Bösing, F. König, H. Poppenborg, arXiv:1610.02275, arXiv:1709.04154
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
powheg-box-v2-hvq
- Ebuilds: 3, Testing: 4086 Description:
Heavy-quark pair production, S. Frixione, P. Nason and G. Ridolfi, JHEP 0709 (2007) 126, arXiv:0707.3088
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
powheg-box-v2-trijet
- Ebuilds: 3, Testing: 4086 Description:
Three-jet production in POWHEG, Adam Kardos, Paolo Nason and Carlo Oleari, arXiv:1402.4001
The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.
Homepage:http://powhegbox.mib.infn.it/ License: GPL-3+
professor
- Ebuilds: 1, Testing: 2.3.3 Description:
Fundamentally, the idea of Professor is to reduce the exponentially expensive process of brute-force tuning to a scaling closer to a power law in the number of parameters, while allowing for massive parallelisation and systematically improving the scan results by use of a deterministic parameterisation of the generator's response to changes in the steering parameters.
Homepage:
https://professor.hepforge.org/
https://gitlab.com/hepcedar/professor
License: all-rights-reserved
pyfeyn2
- Ebuilds: 2, Testing: 9999 Description:
PyFeyn is a package which makes drawing Feynman diagrams simple and programmatic. Feynman diagrams are important constructs in perturbative field theory, so being able to draw them in a programmatic fashion is important if attempting to enumerate a large number of diagram configurations is important. The output quality of PyFeyn diagrams (into PDF or EPS formats) is very high, and special effects can be obtained by using constructs from PyX, which PyFeyn is based around
Homepage:
https://github.com/APN-Pucky/pyfeyn2
https://pypi.org/project/pyfeyn2/
License: GPL-3
pylha
- Ebuilds: 1, Testing: 0.4 Description:
A Python package to convert data files in SLHA and similar formats to Python objects, JSON, or YAML.
Homepage:https://github.com/DavidMStraub/pylha License: MIT
qcdnum
- Ebuilds: 1, Testing: 18.00.00 Description:
The qcdnum program numerically solves the evolution equations for parton den-
sities and fragmentation functions in perturbative QCD. Un-polarised parton den-
sities can be evolved up to next-to-next-to-leading order in powers of the strong
coupling constant, while polarised densities or fragmentation functions can be
evolved up to next-to-leading order. In addition to these evolution routines, a
large set of tools is provided to solve n-fold coupled QCD evolution equations and
to compute convolution integrals in the zero-mass or generalised mass schemes.
Based on this toolbox and included in the software distribution are two add-on
packages to calculate zero-mass structure functions in un-polarised deep inelas-
tic scattering, and heavy flavour contributions to these structure functions in the
fixed flavour number scheme.
Homepage:https://www.nikhef.nl/~h24/qcdnum/QcdnumDownload.html License: GPL-2
rapgap
- Ebuilds: 1, Testing: 3.308 Description:
The Monte Carlo program RAPGAP generates a full hadron event record according to the HEP common standards. In ep it can describe all inclusive and diffractive processes, in pp it is available for single-diffractive and a few inclusive processes for heavy quark and jet production.
Homepage:
https://rapgap.hepforge.org/
https://gitlab.cern.ch/jung/rapgap
License: GPL-2
resummino
- Ebuilds: 1, Testing: 3.1.2 Description:
Resummino computes predictions for selected Beyond the Standard Model (BSM) processes at hadron colliders. In the framework of the Minimal Supersymmetric Standard Model (MSSM) predictions at approximate NNLO+NNLL are available for slepton-pair and electroweakino-pair production (these processes are also available with a collinear improved version of threshold resummation for NLO+NLL); predictions at LO are available for gaugino-squark production.
In general BSM models with extended gauge sectors, predictions for Z' and W' production are available at approximate NNLO+NNLL accuracy. The code is able to compute total cross sections as well as invariant-mass and transverse-momentum distributions (only for Drell-Yan-like processes).
Note that this version includes LoopTools-2.13 (instead of QCD-loops) for the evaluation of the loop integrals which has to be installed and linked to resummino.
This is open-source software under the terms of the European Union Public Licence, version 1.1 or later, and is actively developed by Juri Fiaschi in the Particle Physics Group at the University of Liverpool and Alexander Neuwirth in the Research Group of Prof. Dr. Michael Klasen at the Institut für Theoretische Physik, Universität Münster, Germany.
Homepage:https://resummino.hepforge.org/ License: EPL-2.0
rundec
- Ebuilds: 1, Testing: 0.5 Description:
CRunDec is "a C++ program for the running and decoupling of the strong coupling constant and quark masses", developed by Florian Herren and Matthias Steinhauser. Relevant references:
Homepage:https://github.com/DavidMStraub/rundec-python License: MIT
samurai
- Ebuilds: 1, Testing: 2.1.1 Description:
Samurai is a tool for the automated numerical evaluation of one-loop virtual corrections to any scattering amplitudes within the dimensional regularization scheme. It is based on the decomposition of the integrand according to the OPP-approach, extended to accommodate an implementation of the generalised D-dimensional unitarity-cuts technique, and uses a polynomial interpolation exploiting the Discrete Fourier Transform. Samurai can process integrands with any number of external legs, written either as numerator of Feynman diagrams or as product of tree level amplitudes and it can be compiled in double or quadruple precision.
Homepage:https://samurai.hepforge.org/ License: GPL-3+
slhalib
- Ebuilds: 1, Testing: 2.2 Description:
The SUSY Les Houches Accord (SLHA) has standardized and significantly simplified the exchange of input and output parameters of SUSY models between such disparate applications as spectrum calculators and event generators.
Homepage:http://www.feynarts.de/slha License: LGPL-3
smelli
- Ebuilds: 2, Testing: 2.4.0 Description:
CRunDec is "a C++ program for the running and decoupling of the strong coupling constant and quark masses", developed by Florian Herren and Matthias Steinhauser. Relevant references:
Homepage:https://github.com/wilson-eft/wilsonHDembinski/jacobi License: MIT
smodels
- Ebuilds: 2, Testing: 2.3.0 Description:
SModelS is an automatic, public tool for interpreting simplified-model results from the LHC. It is based on a general procedure to decompose Beyond the Standard Model (BSM) collider signatures presenting a Z2 symmetry into Simplified Model Spectrum (SMS) topologies. Our method provides a way to cast BSM predictions for the LHC in a model independent framework, which can be directly confronted with the relevant experimental constraints.
Homepage:https://github.com/SModelS/smodels License: MIT
softsusy
- Ebuilds: 1, Testing: 4.1.13 Description:
This program provides a SUSY spectrum in the NMSSM, or the MSSM including flavour violation and with or without R-parity consistent with input Standard Model fermion mass/mixings and electroweak/strong coupling data. The R-parity violating mode can calculate neutrino masses and mixings to 1 loop. SOFTSUSY can be used in conjunction with other programs for many different particle physics calculations. SOFTSUSY now has a mode with 3 loop RGEs and some 2-loop threshold correction and 2-loop SUSY QCD corrections to gluino and squark pole masses. SOFTSUSY now computes decay branching ratios for the MSSM and NMSSM. It also ships with (and links to) Himalaya-1.0 for three-loop corrections to mh0.
Homepage:
https://ballanach.github.io/softsusy/
https://softsusy.hepforge.org/
https://github.com/BAllanach/softsusy
License: GPL-3+
starlight
- Ebuilds: 1, Testing: 313 Description:
STARlight is a Monte Carlo that simulates two-photon and photon-Pomeron interactions between relativistic nuclei and protons. It produces a variety of final states. For two-photons, it simulates lepton pairs and a variety of mesons. A list of available channels may be found here. For photonuclear interactions, it models coherent and incoherent vector mesons production. A list of available channels may be found here.
Homepage:
https://starlight.hepforge.org/
License: GPL-3
thep8i
- Ebuilds: 1, Testing: 2.0.3 Description: Lund hadronisation for Herwig. Part of earlier ThePEG codes.
Homepage:https://gitlab.cern.ch/TheP8I/TheP8I License: GPL-3
thepeg
- Ebuilds: 3, Testing: 2.3.0 Description:
Toolkit for High Energy Physics Event Generation.
ThePEG has been broken out from the PYTHIA7 program
to better factorize the parts which were PYTHIA-specific
from those which are general model-independent components
of the toolkit and which can be used by any event generator model.
Homepage:http://home.thep.lu.se/ThePEG/ License: GPL-2
topdrawer
- Ebuilds: 2, Testing: 1.0.0 Description:
TOPDRAWER is a keyword-driven interface to the SLAC
Unified Graphics system, designed specifically to
generate physics graphs with minimal specifica-
tions. Reasonable defaults are assumed for axis
scales, tic locations, label locations and size,
etc.
Topdrawer originated at the Stanford Linear Ac-
celerator Center. The manual for this modified
version is online in
TOPDRAWERROOT:[DOC]TOPDRAWER.DOC, and via HELP,
both at the VMS level and within the Topdrawer pro-
gram. The original SLAC document number is CTGM
178.
Many devices are supported, including Xwindows and
Tektronix displays, and Postscript, QMS1200 and
EXCL printers.
Homepage:https://gitlab.com/APN-Pucky/topdrawer3 License: all-rights-reserved
vbfnlo
- Ebuilds: 3, Testing: 3.0.0 Description:
VBFNLO is a fully flexible parton level Monte Carlo program for the simulation of vector boson fusion, double and triple vector boson production in hadronic collisions at next to leading order in the strong coupling constant. VBFNLO includes Higgs and vector boson decays with full spin correlations and all off-shell effects. In addition, VBFNLO implements CP-even and CP-odd Higgs boson via gluon fusion, associated with two jets, at the leading order one loop level with the full top-quark and bottom-quark mass dependence in a generic two Higgs doublet model.
Homepage:
https://ific.uv.es/vbfnlo/index.html
https://www.itp.kit.edu/vbfnlo/wiki/doku.php
https://github.com/vbfnlo/vbfnlo
https://arxiv.org/abs/2405.06990
License: GPL-2
whizard
- Ebuilds: 2, Testing: 3.1.6 Description:
WHIZARD is a program system designed for the efficient calculation of multi-particle scattering cross sections and simulated event samples.
WHIZARD can evaluate NLO QCD corrections in the SM for arbitary lepton and hadron colliders. Tree-level matrix elements are generated automatically for arbitrary partonic processes by using the Optimized Matrix Element Generator O'Mega. Matrix elements obtained by alternative methods (e.g., including loop corrections) may be interfaced as well. The program is able to calculate numerically stable signal and background cross sections and generate unweighted event samples with reasonable efficiency for processes with up to eight final-state particles; more particles are possible. For more particles, there is the option to generate processes as decay cascades including complete spin correlations. Different options for QCD parton showers are available.
Polarization is treated exactly for both the initial and final states. Final-state quark or lepton flavors can be summed over automatically where needed. For hadron collider physics, an interface to the standard LHAPDF is provided. For Linear Collider physics, beamstrahlung (CIRCE) and ISR spectra are included for electrons and photons. The events can be written to file in standard formats, including ASCII, StdHEP, the Les Houches event format (LHEF), HepMC, or LCIO. These event files can then be hadronized.
WHIZARD supports the Standard Model and a huge number of BSM models. Model extensions or completely different models can be added. WHIZARD fully supports external models from UFO files. There are also legacy interfaces to FeynRules and SARAH.
Homepage:
https://whizard.hepforge.org/
https://gitlab.tp.nt.uni-siegen.de/whizard/public
License: GPL-2
wilson
- Ebuilds: 1, Testing: 2.3.2 Description:
wilson is a Python package for the running and matching of Wilson coefficients of higher-dimensional operators beyond the Standard Model of particle physics. It implements the one-loop running of all dimension-6 operators in the Standard Model Effective Theory (SMEFT), complete tree-level matching onto the weak effective theory (WET) at the electroweak scale, and complete one-loop running of all dimension-6 WET operators in QCD and QED. It uses the Wilson coefficient exchange format (WCxf) for representing Wilson coefficient values and can be easily interfaced with all codes supporting this standard.
Homepage:https://github.com/wilson-eft/wilson License: MIT
xfitter
- Ebuilds: 1, Testing: 2.2.0 Description:
Proton parton distribution functions (PDFs) are essential for precision physics at the LHC and other hadron colliders. The determination of the PDFs is a complex endeavor involving several physics process. The main process is the lepton proton deep-inelastic scattering (DIS), with data collected by the HERA ep collider covering a large kinematic phase space needed to extract PDFs. Further processes (fixed target DIS, ppbar collisions etc.) provide additional constraining powers for flavour separation. In particular, the precise measurements obtained or to come from LHC will continue to improve the knowledge of the PDF.
The xFitter project is an open source QCD fit framework ready to extract PDFs and assess the impact of new data. The framework includes modules allowing for a various theoretical and methodological options, capable to fit a large number of relevant data sets from HERA, Tevatron and LHC. This framework is already used in many analyses at the LHC.
Homepage:https://www.xfitter.org/xFitter/xFitter License: GPL-3+