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Last modified 5 months ago Last modified on 04/26/17 00:04:31

Releases

26 April 2017: Delphes 3.4.1

  • added RadiusMax and HalfLengthMax to ParticlePropagator to keep decay products of the long-lived particles (#1084)
  • fixed compilation of Validation.cpp
  • improved CMake configuration
  • fixed weights in LHEFReader
  • fixed bug in Charged Hadron Subtraction (CHS)
  • promoted z vertex resolution to TFormula
  • fixed bugs in DelphesDisplay
  • added jet substructure to default CMS and FCC cards
  • updated tracker and calorimeter resolution in the FCC card
  • added preliminary FCC-hh card with pile-up
  • corrected ECAL granularity in the ILD detector configuration

10 November 2016: Delphes 3.4.0

  • corrected granularities for ECAL and HCAL in ATLAS and CMS cards
  • included latest FCC-hh and CEPC detector cards
  • improved particle flow algorithm
  • updated FastJet library to 3.2.1
  • updated Nsubjettiness library to 2.2.4
  • added script that produce validation plots
  • added DelphesROOT reader
  • added TrackSmearing and BeamSpotFilter modules
  • completed TimeSmearing module
  • added preliminary version of vertex clustering algorithm in 3/4D, VertexFinder and VertexFinder4D (special thanks to A. Hart and L. Gray)
  • fixed muon efficiency at high energy
  • replaced gaussian smearing with lognormal in MomentumSmearing module
  • made pyROOT Example1.py compatible with ROOT

24 August 2016: Delphes 3.3.3

  • improved compatibility with ROOT >= 6.04
  • removed test of praticle stability based on ROOT pdgtable (#347, #753, #821, #855)
  • fixed bugs in DelphesCMSFWLite
  • fixed bugs in PUPPI
  • fixed compiler and linker flags for Pythia8
  • added CMS Phase II cards
  • added particle gun to DelphesPythia8
  • added jet merging to DelphesPythia8 based on Pythia8 main32.cc
  • added UseMiniCone option in Isolation module
  • added RecoPuFilter module
  • added back OldCalorimeter for CheckMate bwd compatibilty (#591)
  • updated tracking and calorimeter resolution in CMS cards

16 December 2015: Delphes 3.3.2

  • added pre-validated card for CMS upgrade Phase II studies
  • added TrackCountingTauTagging module (a la CheckMate)
  • updated tau-tagging efficiency according to ATL-PHYS-PUB-2015-045

20 November 2015: Delphes 3.3.1

  • corrected light parton mistag rate in b-tagging formula for CMS and ILD cards
  • added tracks to output in ILD card to enable root2lhco conversion
  • fixed muon collection in ILD card
  • added example for pileup generation with Pythia8
  • moved to loose isolation working points for ATLAS and CMS cards
  • added UseRhoCorrection switch to decide which isolation variable to use for selection (true by default)
  • switch to Rapidity selector (SelectorRapRange) for pile-up density computation in FastJet to ensure backward compatibility
  • addressed N-subjettiness warnings in 2.2.1 version

9 October 2015: Delphes 3.3.0

  • improved energy-flow algorithm for high momentum
  • updated b-tagging parameterisations to recent ATLAS and CMS publications
  • updated FastJet library to 3.1.3
  • updated Nsubjettiness library to 2.2.1
  • added a detector card for the ILD detector (for ILC) based on http://arxiv.org/abs/1306.6329
  • adapted examples, EventDisplay, DelphesFormula and DelphesTF2 to ROOT 6.04
  • fixed tau-tagging for events without tau (thanks to Sho Iwamoto)
  • fixed UniqueObjectFinder (#728)
  • added JetFakeParticle module
  • added PhotonConversions module
  • added TaggingParticlesSkimmer module
  • added phi and energy dependence to AngularSmearing, BTagging, Efficiency, EnergyScale, EnergySmearing, IdentificationMap, ImpactParameterSmearing and MomentumSmearing
  • added IsRecoPU flag and PTMin parameter to TrackPileUpSubtractor
  • added Invert and Status options to PdgCodeFilter (thanks to Chase Shimmin)
  • added new isolation variables to Candidate, Electron, Muon and Photon classes (thanks to Raffaele Gerosa)
  • added code from CMS to PileUpMerger and PileUpMergerPythia8
  • added timing information to Calorimeter
  • added new PileUpJetID version (thanks to Seth Senz)
  • added Area 4-vector to jet class
  • added PUPPI algorithm and RunPUPPI module
  • added RecursiveTools package from fastjet contribs
  • replaced N-subjettiness with an array in Jet class (same as in Candidate class)
  • added Trimming, Pruning and SoftDrop to FastJetFinder
  • added possibility to use DelphesPythia8 with LHE files
  • added Pythia8 examples
  • added JetFlavorAssociation module with Physics and Algorithmic definitions of the jet flavor
  • added new jet flavor definitions to the BTagging module (available only when running DelphesPythia8 with LHE files)

22 December 2014: Delphes 3.2.0

  • moved code repository to GitHub
  • moved configuration files from examples to cards directory
  • new event display, with automatic discovery of the object collections, navigation controls, and 3D geometry sketch (for more details, see WorkBook/EventDisplay)
  • updated FastJet library to 3.1.0
  • added zero suppression to Calorimeter and SimpleCalorimeter modules
  • added SmearTowerCenter configuration parameter to Calorimeter and SimpleCalorimeter modules (#363)
  • added FastJetGridMedianEstimator module (provides much faster pile-up subtraction based on a fixed grid eta-dependent average pile-up density computation)
  • added AngularSmearing module (to smear track eta,phi)
  • added PdgCodeFilter (to veto particle with given PID from collections)
  • added IdentificationMap (allows to apply (mis)-identification)
  • added Example4.C (provides an example on how to compute the jet energy scale)
  • added examples (examples/ExternalFastJet) on how to run Delphes as a library with external FastJet installation
  • updated card for FCC studies (cards/delphes_card_FCC_basic.tcl)
  • added card for LHCb studies (cards/delphes_card_LHCb.tcl)
  • made interface with Pythia 8 turned off by default
  • adapted Isolation module to new energy-flow photons and neutral hadrons (#362)
  • fixed jet mass calculation for anti-kt with winner-take-all (#355)
  • fixed crashing of root2lhco when ROOT file doesn't contain all required branches (#340)
  • added possibility to build Delphes with CMake (#313)

6 May 2014: Delphes 3.1.2

  • fixed smearing of (z,t) vertex distribution in the PileUpMerger module
  • adapted DelphesSTDHEP to the latest version of the STDHEP format introduced in MadGraph5_aMC@NLO 2.1.2
  • added Hector module (fast simulator for the transport of particles in beam lines, see JINST 2:P09005 (2007))
  • added N-subjettiness and N-jettiness (identify boosted hadronically-decaying objects like electroweak bosons and top quarks, see JHEP 1103:015 (2011), 1202:093 (2012) and 1404:017 (2014))
  • added SimpleCalorimeter module (to study effects of different granularity in ECAL and HCAL)
  • added ImpactParameterSmearing module (to smear transverse and longitudinal track impact parameter needed for track counting b-tagging)
  • added TrackCountingBTagging module (for simple b-tagging algorithm based on counting tracks with large impact parameter)
  • added example card for FCC studies (examples/delphes_card_FCC_basic.tcl)

25 April 2014: Delphes 3.1.1

  • adapted DelphesSTDHEP to the latest version of the STDHEP format introduced in MadGraph5_aMC@NLO 2.1.2

17 April 2014: Delphes 3.1.0

  • added Hector module (fast simulator for the transport of particles in beam lines, see JINST 2:P09005 (2007))
  • added N-subjettiness and N-jettiness (identify boosted hadronically-decaying objects like electroweak bosons and top quarks, see JHEP 1103:015 (2011), 1202:093 (2012) and 1404:017 (2014))
  • added SimpleCalorimeter module (to study effects of different granularity in ECAL and HCAL)
  • added ImpactParameterSmearing module (to smear transverse and longitudinal track impact parameter needed for track counting b-tagging)
  • added TrackCountingBTagging module (for simple b-tagging algorithm based on counting tracks with large impact parameter)
  • added example card for FCC studies (examples/delphes_card_FCC_basic.tcl)

20 January 2014: Delphes 3.0.12

  • updated FastJet library to 3.0.6
  • added smearing of (z,t) vertex distribution in the PileUpMerger module
  • propagation time computed for every output collection
  • added TimeSmearing module (for propagation time measurement)
  • added PileUpJetId module (thanks to Seth Senz)

14 November 2013: Delphes 3.0.11

  • new energy-flow algorithm, optimized for better compatibility with pile-up subtraction
  • added possibility of computing pile-up density in different eta regions via the RhoEtaRange parameter in FastJetFinder module
  • implemented correct efficiency/resolution for high pt muons in CMS cards
  • removed pile-up subtraction on missing energy
  • added possibility to read re-weighting information from LHEF input files
  • added UsePTSum and PTSumMax parameters to isolation module
  • added possibility of specifying the shape of pile-up distribution (via the PileUpDistribution parameter in the PileUpMerger module)
  • added pile-up Vertex collection to the output tree

19 August 2013: Delphes 3.0.10

  • new readers (DelphesProMC.cpp, DelphesProMC.py (#220), DelphesPythia8)
  • new modules (EnergyScale, PileUpMergerPythia8, Weighter)
  • new module parameters (absolute/relative isolation (#187), flat/poisson pile-up distribution)
  • new global parameters (max number of events, skip events (#183), random seed (#202) )
  • new branches (pile-up event density rho, MC event weight)
  • updated CMS and ALTAS detector cards (and added ATLAS pile-up detector card)
  • calorimeter smearing is now performed according to a logNormal distribution
  • improved particle-flow algorithm (#204)
  • added calculation of particle propagation time in the tracker
  • fixed tau-jet matching by only considering visible hadronic tau (#208)
  • read masses from MC event file (#195, #201)
  • bug fixes in DelphesCMSFWLite (#196)
  • compilable analysis macro examples (#182)
  • ability to read MC re-weighting information from LHE files

23 May 2013: Delphes 3.0.9

  • fixed reading of weighted STDHEP events (#181)
  • fixed script building Delphes with CMSFWLite (#180)
  • added more particles to StatusPidFilter (#179)

17 May 2013: Delphes 3.0.8

  • fixed treatment of units in HepMC format (#175)
  • added Weight to HepMCEvent branch to store the event weight (#173)
  • added Rho branch to store the rho energy density (#176)
  • added random rotation of pile-up events around the z-axis

26 April 2013: Delphes 3.0.7

  • added separate make rule for the event display to fix the compilation problem for systems without OpenGL libraries (#168, #127)
  • added Cloner module
  • modified BTagging module (several BTagging bits can be stored for the same jet collection, see [here](/workbook/modules))

15 April 2013: Delphes 3.0.6

  • fixed filtering of the partons used for b- and tau-tagging (#163)
  • fixed artefacts in jet eta distribution (#169)
  • fixed direction of MissingET (#170)
  • modified DelphesFormula to filter out the end-of-line characters
  • added TrackPileUpSubtractor to fix the problem with the charged pile-up particles outside of the tracker coverage
  • added ConstituentFilter module
  • added StatusPidFilter module
  • added hepmc2pileup and stdhep2pileup converters

8 March 2013: Delphes 3.0.5

  • fixed compilation of the PileUpMerger on MacOSX
  • added support for large HepMC and STDHEP files on 32-bit systems (ticket #163)