== References ==

Delphes 2 is not supported any more. If you use Delphes as part of a publication, you should include a citation to:

[[http://dx.doi.org/10.1007/JHEP02(2014)057 | JHEP 02 (2014) 057 ]] [[http://arxiv.org/abs/1307.6346 | [ arXiv:1307.6346 [hep-ex] ] ]]**


Also, please note that Delphes relies on a few external packages. If they are used they should be cited as well.
For instance, the jet clustering procedure in Delphes is performed via the !FastJet package. If your analysis
involves jets, you should explicitly include both a reference for the !FastJet package and for the relevant clustering algorithm you are using.

For more information on how to properly cite !FastJet, please visit [http://fastjet.fr/about.html this page].


== A framework for fast simulation of a generic collider experiment ==

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 subdetector resolutions. Visualisation of the final state particles is also built-in using the corresponding ROOT library.

[TheTeam The Delphes team]

=== **NEW** Delphes 3 **stable release** (February 26) ===

Following the guidelines and suggestions of the 2012 [http://indico.cern.ch/materialDisplay.py?materialId=minutes&confId=187127 LPCC workshop on public fast simulators for the LHC], Delphes has been completely redesigned to meet the needs of all users.

Improvements include:
  - Modular structure allowing users to introduce new features easily and modify existing ones
  - Library mode to use Delphes inside other programs
  - Simulation speed has been improved
  - Input libraries have been rewritten from scratch to handle standard formats, files stored on castor or on the web
  - Many existing features have been updated
  - Important number of bug fixes

The modular system allows you to:
  - define your own output collections, store multiple object collections (different jet algorithms, etc.)
  - define the isolation criteria for each type of object
  - define efficiency and resolution formulas for all objects
  - change the b-tagging and tau-tagging efficiency and misidentification rate
  - and much more! Be sure to read the [WorkBook online documentation]

Production version 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)  

Download here: [http://cp3.irmp.ucl.ac.be/downloads/Delphes-3.1.2.tar.gz Delphes 3.1.2]

Documentation: [WorkBook Delphes 3 user guide]

=== Community and support ===

Delphes is now moving to community-based development. The '''branches''' of the subversion repository are open to users who would like to participate. If you are interested, [https://cp3.irmp.ucl.ac.be/projects/delphes/register register] first and then contact the support team via cp3-delphes@uclouvain.be to be granted write access to the subversion repository.

=== SVN access ===

You can get the latest version of the code using:

{{{
svn checkout https://cp3.irmp.ucl.ac.be/sources/delphes/trunk
}}}

Registered developers can checkout and commit in branches using their credentials:

{{{
svn checkout --username=my_user_name https://cp3.irmp.ucl.ac.be/sources/delphes/branches/my_branch
}}}

== Latest tickets ==
[[TicketQuery(max=10,order=time,desc=1,format=table,col=resolution|summary|owner|reporter|status|priority|time,type!=spam)]]
[report:9 More tickets]
{{{#!comment
== Active tickets ==
[[TicketQuery(order=priority,format=table,col=resolution|summary|owner|reporter|status|priority|time,status!=closed,type!=archive)]]
[report:1 Active tickets]
}}}

=== Development Area (authenticated users only) ===
   * [DevelopmentArea Development]