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4 th Concept Software Status Report

4 th Concept Software Status Report. ILCroot: a summary of features. CERN architecture (based on Alice’s Aliroot) Full support provided by Brun, Carminati, Ferrari, et al. Uses ROOT as infrastructure All ROOT tools are available (I/O, graphics, PROOF, data structure, etc)

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4 th Concept Software Status Report

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  1. 4th Concept Software Status Report C. Gatto

  2. ILCroot: a summary of features • CERN architecture (based on Alice’s Aliroot) • Full support provided by Brun, Carminati, Ferrari, et al. • Uses ROOT as infrastructure • All ROOT tools are available (I/O, graphics, PROOF, data structure, etc) • Extremely large community of users/developers • Four MDC have proven robustness, and reliability and portability C. Gatto

  3. C. Gatto + Event Generators

  4. The Virtual Montecarlo Concept • Virtual MC provides a virtual interface to Monte Carlo • It decouples the dependence of a user code on a concrete MC • It allows to run the same user application with all supported Monte Carlo programs • The concrete Monte Carlo (Geant3, Geant4, Fluka) is selected and loaded at run time C. Gatto

  5. VMC Advantages • It allows the comparison between Geant3 Geant4 and Fluka using the same geometry and data structure (QA) • You can generate and simulate different events with different MC’s and merge the digits • Example: • Geant4 for signal event • Fluka for beam background digitization C. Gatto

  6. TGenerator Concept • TGenerator is an abstract base class • It interfaces ROOT and the various event generators (thanks to inheritance) • Possible to study • Full events (event by event) • Single processes • Mixture of both (“Cocktail events”) • Generation of Cocktail of different processes • Rate and weighting control • Allow easy mixing of signal and background • More than a dozen Generators built-in C. Gatto

  7. ILCroot Strategy: Modularity • ILCroot Building Block: The Detector Class • Detector-centric approach (vs Processor-centric) • Main policy: each detector is responsible for its code & data • Cross-modules calls are not allowed • Easy to work for groups across many countries • Allow for several versions of the same detector or several detector of the same kind (ex. TPC & DCH) C. Gatto

  8. The Detector Class • Both sensitive modules (detectors) and non-sensitive ones are described by this base class. • This class must support: • Geometry description • Event display • Simulation by the MC • Digitization • Pattern recognition • Local reconstruction • Local PiD • Calibration • QA • Data from the above tasks • Several versions of the same detector are possible(choose at run time) C. Gatto

  9. Coordinating the Detectors • Detector stand alone (Detector Objects) • Each detector executes a list of detector actions/tasks • On demand actions are possible but not the default • Detector level trigger, simulation and reconstruction are implemented as clients of the detector classes • Detectors collaborate (Global Objects) • One or more Global objects execute a list of actions involving objects from several detectors • Data are exchanged using a whiteboard techinque • The Run Manager • executes the detector objects in the order of the list • Global trigger, simulation and reconstruction are special services controlled by the Run Manager class • The Offline configuration is built at run time by executing a ROOT macro C. Gatto

  10. Software Status • Bangalore version of ILCroot frozen (and dismissed) • Most of the algorithms are OK • Too much hard-coding in the reconstruction • Only DREAM and EMCAL geometry are 4th Concept’s realistic • Calorimeter response has some troubles • Stable version: OK for training C. Gatto

  11. Status of ILCroot: Framework • Framework upgraded to last CERN version (4.04.rev.06, Aug. 2006) • Fluka, Geant3 and Geant4 interface work smoothly (special derogation obtained for Fluka from CERN) (V. Di Benedetto) • GDML interface added (thanks to R. Brun) C. Gatto

  12. Status of ILCroot: TPC (F. Ignatov) • New TPC for DCR implemented • All passive materials from Alice (walls, support, electronics, cable, cage, etc.) • Gas: Ar-CF4 97%-3% (from M. Ronan, V. Lepeltier) • Readout: • 5 layers of Micromegas (from. P. Colas) • 2 chip/layer -> 512 pixels • 55 mm pitch • 150 layer of pads • Pad Inner:  Width 0.23 cm   Length 0.42 cm • Pad Outer1: Width 0.34 cm   Length 0.56 cm • Pad Outer2: Width 0.34 cm   Length 0.85 cm • All the gas-related Physics is simulated (diffusion, finite pad size, noise, etc.). Electronics is not. C. Gatto

  13. Status of ILCroot: DREAM (V. Di Benedetto) • Geometry completed. (including Endcaps). Two versions available: 1 m and 1.5 m • Easily switch from Cu to W (however, need to change calibration values of hS and hC) • 2 months spent with CERN people trying to fix G3/G4/Fluka issues. • Fluka seems working fine. We will be using it for Valencia and DCR. • First studies will be out next week (after calibration processes are completed) C. Gatto

  14. Status of ILCroot: Muon Spectrometer (E. Cavallo, G. Terracciano) • DoD geometry is completed • ESA’s CAD2GDML converter not ready -> positioning tubes using TGeo (root) • Hits + Event Display will be ready for Valencia • Full tracking (with hits smearing) hopefully ready for final DCR studies (Jan. 2007?) C. Gatto

  15. Status of ILCroot: Tracking (F. Ignatov) • New code with maximum parametrization • However, still depends on layout (planar vs circular layer) • VXD being incorporated (need to adjust for the materials in the new SiDmay06 version) • Barrel only for Valencia. Endcap will be included for the DCR studies C. Gatto

  16. More Issues • VXD • See Anna’s talk • PID • Only in the DREAM module • Magnetic Field • New B-field maps for extended DREAM (E. Cavallo) • Will add SiD map for our cooperative studies (M. Demarteau) • Generators and Physics Studies • See Anna’s talk • Background Studies • Bob Kutschke & Daniele Barbareschi C. Gatto

  17. Conclusions • Work is proceeding quickly • Many thanks to Marcel for his large support • Good collaboration with FNAL being established • We are planning to strenghten that next year C. Gatto

  18. Backup slides C. Gatto

  19. VTX VTX Signal event Underlying event Hits Hits Detector stand alone tasks SDigits SDigits Merging Digits TPC RecPoints RecPoints DREAM Tracks Tracks Tracks Detectors collaborate RecParticle Processing Flow C. Gatto

  20. LCIO vs MONARC MC Generation  Energy Deposits in Detector MC Generation  Energy Deposits in Detector SDigitization  Detector response from single particle Digitization  Tracker Hits Digitization Detector response combined Pattern Recognition Recpoints Track Finding  Tracks Track Finding  Tracks Track Fitting  Track Parameters Track Fitting  Track Parameters C. Gatto

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