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Using Jupiter and Satellites

Using Jupiter and Satellites. Akiya Miyamoto KEK Feb 2007. Target of Jupiter/Satellites/Uranus. Jupiter and Satellites are tools for detector optimization based on Geant4 Full detector simulation . Implement an ideal “GLD” geometry in Jupiter ( other geometry is also possible )

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Using Jupiter and Satellites

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  1. UsingJupiter and Satellites Akiya Miyamoto KEK Feb 2007

  2. Target of Jupiter/Satellites/Uranus • Jupiter and Satellites are tools for detector optimization based on Geant4 Full detector simulation. • Implement an ideal “GLD” geometry in Jupiter( other geometry is also possible ) • Study PFA performances by an ultimate condition • Implement “tower” calorimeter • Develop analysis tools • Study physics performance vs. detector choice. • Not for simulation studies for beam test studies • A study by detector simulation is also crucial for the design of the IR design of ILC.

  3. Jupiter/Satellites Concepts For real data Tools for simulation Tools Satellites URANUS JUPITER METIS Input/Output module set IO JLC Unified Particle Interaction and Tracking EmulatoR Unified Reconstructionand ANalysis Utility Set Monte-Calro Exact hits To Intermediate Simulated output LEDA Library Extention forData Analysis Geant4 based Simulator JSF/ROOT based Framework MC truth generator Event Reconstruction JSF: the analysis flow controller based on ROOT The release includes event generators, Quick Simulator, and simple event display

  4. Jupiter Directory Structure Jupiter bin config doc include lib macros scripts sources tmp Linux-g++ Readme Sample G4scripts Jupiter common.gmk main sol lcexp kern cal cdc ct vtx bd tpc it ir Jupiter.cc src include Detector components to use are switched by CPP flags in Jupiter.cc or parameters in JSFJ4 Sub-Detector files

  5. Standalone Jupiter $ Jupiter [options] [g4macro file]   options:     -v N : N is a message level.            > 10 ; Write message every time new geometry is created.            5-10 ; Write message of geometry whose rank is less than N-4.            < 5  ; No message is written at geometry creation.     -f FILE : Read parameters from the file FILE               More than one -f option can be specified.  In this case               a value in the first file is used.     -w      : Write default parameters defined in the program               to the file, jupiter.defaults     -help   : Print help message Useful to display events and debug

  6. G4macro file • Commands to Geant4 and Jupiter are provided as a g4macro file. A list of commands can be found at • When Jupiter is executed as a standalone application interactively, help command can be used to get help information. http://www-jlc.kek.jp/~miyamoto/Jupiter/html/_.html

  7. Jupiter parameter list file • Parameters for detector configuration can be modified by a parameter file given by –f option. • $JUPITERROOT/doc/HowToRun for more details • Standard configuration file as of Jan 2006 is at http://ilcphys.kek.jp/soft/samples_dod/dec05/index.html

  8. Satellites/Uranus

  9. JSFJ4 • Interface to run Jupiter in JSF environment. • Allows to write • Jupiter output by ROOT or LCIO • Use generators in JSF or StdHep format file. • Satellites package reads ROOT file created by JSFJ4

  10. Metis package • Metis is a collection of reconstruction tools for Jupiter data. • Current aim is to prepare a minimum set of Metis modules for studies of Particle Flow Algorithm. • Novice users will be able to do physics analysis using information of PFO classes. • As a first step, a cheated track finder and a cluster maker, etc are in preparation in order to know ultimate performance. • Each module is independent, thus shall be easy to implement different reconstruction algorithm according to interests Development of a real clustering code begins recently

  11. Metis Analysis Flow Jupiter result Physics study make smeared TPC hits from exact hit make tracks from TPC make hybrid tracks ( TPC+IT+VTX) make smeared/merged CAL hits from exact hit make cluster from CAL hits make Particle Flow Objects jet clustering

  12. Satellites Directory Structure Satellites Run Jupiter in JSFto create a ROOT file io jsfj4 kern bin examples include mctruth cal S4xxxExactHit class = J4xxxHit class vtx cdc lib …. src Output LCIO data j42lcio test examples Leda macro metis

  13. Metis Directory Structure metis (JSF’s) Modules for MC data analysis tpc hitmaker make smeared TPC hits from exact hit make tracks from TPC trackmaker hybt hybtmaker make hybrid tracks ( TPC+IT+VTX) cal hitmaker make smeared/merged CAL hits from exact hit clustermaker make cluster from CAL hits pfo pfomaker make Particle Flow Objects jet jetmaker make jet Objects

  14. Uranus Directory Structure Uranus Packages for real data analysis data kern include lib VTX detconfig src hitmaker IT trackmaker TPC hybt

  15. Relation among TrackHits U4VTrackHit double fResidual double fT0 U4VHit *fHitPointer TObjArray U4XXXTrackHit U4XXXTrack U4XXXHit U4VTrack double fChi2 U4VTrackMaker* fU4V JSFHelicalTrack* fHT S4XXXHit S4XXXTrackHit S4XXXTrack double fError S4XXXExactHit *Hit

  16. Relation among CAL Hits TObject TAttLockable S4VHit S4VExactHit +GetExactHitsPtr() +GetAddress() +GetHitPosition() GetAddressPtr() GetSmearedHitPtr() S4CALHit S4CALExactHit + GetCALType() +GetClusterType() + GetPreHitPtr()

  17. Typical results

  18. Momentum resolution Exact hit points created by single m were fitted by Kalman filter package spt/pt2 (GeV -1) By A.Yamaguchi(Tsukuba)

  19. EM Cal Performance By A.L.C.Sanchez (Niigata U.) Linearity is good, but to get energy resolution similar to beam test results, Randge cut of O(1) mm is required. It is very small and we don’t know why we need O(1) mm.

  20. Cheated Particle Flow Analysis A sample detector signal • Key point of PFA is use Cal. signals only for neutral particles • Remove CAL signal if connected to a track • Use Simulation information to connect track and cal. signals  Cheated PFA • What affects jet energy resolution • Signal sampling fluctuation in Cal. • Tracker resolution • Treatment of V0, decays,and interactions before Cal. • … more  Understand factors which affect resolution

  21. Cheated PFO analysis ZH event at Ecm=500 GeV • - Exact hit points of TPC and CAL • are displayed. • Hits belong to the same PFO are shown with the same color • A framework of event display • in JSF is used. By K.Fujii(KEK), S.Yamamoto(GUAS), A.Yamaguchi(Tsukuba)

  22. X3D ROOT’sX3d view of the same event

  23. X3D-Jet Same event, after a forced 4-jet clustering on PFObjects

  24. e+e- Z  q qbar at sqrt(E)=91.1GeV Jet energy resolution By Sumie Yamamoto

  25. DE for Perfect CAL./Tracker By Sumie Yamamoto Jet energy resolution when resolution of CAL and tracker are perfect. Contribution of each detector Total 2.7 GeV HD Cal 2.0 EM Cal 1.2 Tracker 0.4 Others 1.4 (under investigation) GeV/c2

  26. Satellites examples • Exam01 • Exam02 • Exam03 • Exam04 • Exam05 • Exam06 • Exam07 • Exam08 • Exam09 • Analysis code examples

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