Project Group CMS-Trigger Claudia-Elisabeth Wulz HEPHY Scientific Advisory Board Meeting October 1, 2008
The CMS Experiment • • The “Compact Muon Solenoid” CMS is a general purpose experiment exploring the full spectrum of physics offered by the “Large Hadron Collider” LHC at CERN. The CMS detector was closed in August 2008 and saw the first signals of the LHC beams on the 10 th of September 2008. October 1, 2008 Claudia-Elisabeth Wulz 2
Mission Statement of CMS-Trigger Group • Provide the Global Trigger (first level trigger decision for all events and distribution to subsystems) • Provide the Trigger Control System (readiness, partition control, trigger rules) • Provide the Drift Tube Track Finder (barrel regional muon trigger) • Provide the Global Muon Trigger • Provide the Trigger Supervisor • Provide off-line and on-line software October 1, 2008 Claudia-Elisabeth Wulz 3
Muon Trigger Regional Calorimeter Trigger Global Calorimeter Trigger MIP+ RPC Pattern Comparator Trigger CSC DT Local CSC Trigger HF HCAL ECAL Local DT Trigger CSC Track Finder DT Track Finder 4+4 m 4 m 4 m ISO bits Global Muon Trigger e, J, ET, HT, ETm, NJ 4 m (with MIP/ISO bits) Global Trigger max. 100 k. Hz L 1 Accept October 1, 2008 Trigger Supervisor 40 MHz Pipeline, Latency< 3. 2 ms Calorimeter Trigger Claudia-Elisabeth Wulz Responsibility of HEPHY-Vienna HLT 4
Regional Muon Trigger Drift Tube Chambers Track Finder Processor • Pipeline logic running at 40 MHz (LHC bunch crossing frequency) • Implemented in programmable logic devices • Based on extrapolation and pattern matching methods October 1, 2008 Claudia-Elisabeth Wulz 5
Track Finding Track segment (with direction of extrapolation) Phi Track Finder (Sector Processor) Eta Track Finder The trigger is based on correlating compatible track segments pointing to the vertex. At most four detector planes are used in azimuth (transverse to the magnetic field direction) and three in pseudorapidity (along the beam axis). If possible, track candidates found in both projections are then matched. October 1, 2008 Claudia-Elisabeth Wulz 6
Phi Track Finder Wedge Crates Central Crate Cabled Wedge Crates October 1, 2008 Eta Track Finder Claudia-Elisabeth Wulz 7
Global Muon Trigger The GMT combines DT/CSC/RPC muon candidates in a sophisticated way (no simple AND/OR, geometry and track qualities are taken into account). Algorithms are optimized to achieve: • high efficiency • reasonable trigger rates • suppression of fake muons GMT Option e % |h|<2. 1 Rate k. Hz for 14 Ge. V thr. OR DT CSC RPC GMT smart 98. 1 5. 4 SMART 97. 3 2. 9 AND 87. 4 2. 0 Rates for L=2 x 1033 cm-2 s-1 Optimum combination high efficiency, low rate October 1, 2008 Claudia-Elisabeth Wulz 8
Global Trigger, Trigger Control System TCS module The Global Trigger takes the level-1 accept decision: It calculates algorithms for each event, every 25 ns, and decides if it is to be rejected or sent to the High-Level Trigger for further analysis. The L 1 A signal is distributed to the subsystems. Trigger Menu: 128 physics algorithms based on trigger objects (including topological conditions) and 64 technical triggers are possible. The physics trigger menu is fully programmable. Trigger Control System: According to the status of subsystems including the data acquisition or trigger rules triggers may be inhibited. October 1, 2008 Claudia-Elisabeth Wulz 9
High-Level Trigger Run Control Session 1 Luminosity Monitoring System 0. . n 1 1 Configuration, tests, operation and monitoring of trigger components Management of interaction and information exchange with Run Control, the High-Level Trigger and the Luminosity Monitoring System Trigger Supervisor Access point for all trigger subsystems through web browser Interconnection test between subdetectors and trigger are also coordinated by the TS. 1 1 1 CSC ECAL 1 1 DT HCAL 1 1 RPC October 1, 2008 1 GMT 1 CSCTF 1 DTTF Claudia-Elisabeth Wulz 1 1 GT/TCS GCT 1 RCT 10
Trigger Software Level-1 Trigger Offline- und Online Software: Emulator (calculates bit-by-bit response of trigger hardware), Data Base, Trigger Menu Editor, Control Panels, etc. Monitoring-Software: Rates, dead time, history, etc. October 1, 2008 Claudia-Elisabeth Wulz 11
Detector and Trigger Commissioning Crucial participation of Vienna hardware and software components in: Magnet Test and Cosmic Challenge (MTCC) Global Runs (cosmics and tests, partly with magnetic field) First Beam in CMS 3 Tesla 10 Sep. 2008 Synchronization to beam successful! October 1, 2008 Claudia-Elisabeth Wulz 12
Members Physicists (7 FTE): V. Ghete, M. Jeitler, I. Mikulec, H. Rohringer, J. Strauss, A. Taurok, C. -E. Wulz Electronics or Computer Engineers (2 FTE): J. Erö, I. Magrans de Abril Technicians (5. 6 FTE, shared with Electronics I): M. Arnold, H. Bergauer (80%), M. Eichberger, K. Kastner, B. Neuherz (50%), M. Oberegger (80%), Th. Schreiner (50%) Students (1. 75 FTE): G. Kasieczka (25%), F. Teischinger (diploma student), Th. Themel (25%), Ph. Wagner (25%) Austrian doctoral student at CERN (1 FTE): Ch. Hartl TOTAL: ~17 FTE October 1, 2008 Claudia-Elisabeth Wulz 13
Past Positions of Group Members Trigger Coordinator (Szoncso, -> 1995) Tridas Technical Coordinator (Szoncso, 1995 to 1997) Global Trigger Coordinator (Wulz, since 1995) Muon Resources Manager (Wulz, Sep. 1994 -> June 1998) Conference Committee Chair (Wulz, 1998 to 2001) Regional Representative for Other CERN Member States in the CMS Management Board (Wulz, July 2003 - June 2005) Muon Reconstruction Coordinator (Neumeister, 2005 to 2006) Member of Editorial Board for Physics Reconstruction and Selection (Neumeister, 2005 -2006) Member of Publications Committee (Wulz, 2005 to 2006) Members of various conference committees e. g. VCI, PHLHC, Four SEAS, EUROCON (Jeitler, Taurok, Wulz) October 1, 2008 Claudia-Elisabeth Wulz 14
Current Positions of Group Members Deputy Trigger Project Manager (Wulz, since 2007) Muon Trigger Coordinator (Mikulec, 2007 -2008) Subeditor for Trigger Coordination (Wulz, since Nov. 2007) Member of WLCG Collaboration Board (Wulz, since 2007) Level-1 Trigger Online Software Coordinator (Magrans, since 2006) Member of Editorial Board for Tridas (Wulz, since 2003) October 1, 2008 Claudia-Elisabeth Wulz 15
Future Positions of Group Members Trigger Technical Coordinator (Mikulec, 2009 -2010) Trigger Detector Performance Group Leader and Level-1 Trigger Offline Software Convener (Ghete, 2009 -2010) Member of Advisory Board to Collaboration Board (Wulz, 2009 -2010) October 1, 2008 Claudia-Elisabeth Wulz 16
Completed Projects • Delivery of trigger hardware (DTTF: 135 modules of 8 types, GMT: 4 modules of 2 types, GT/TCS: 13 modules of 8 types, plus spares, mezzanine cards and firmware) • SUSY trigger studies • SUSY simulation and analysis preparation • Projects within Austrian Exchange Service (with Hungary and Spain) and Jubilee Fund of the City of Vienna • Z’ studies • RD 5 experiment (Muon trigger and identification in high magnetic fields) - complete DAQ and some data analysis October 1, 2008 Claudia-Elisabeth Wulz 17
Present Activities • Run trigger components as a service (global runs, magnet commissioning, subsystem commissioning) • Provide up-to-date trigger menus • Continue trigger software development • Finish commissioning • Incorporate BPTX, BSC, CASTOR, ZDC, TOTEM • Continue Trigger Supervisor development with subsystems • Analysis of current trigger data • Take part in preparations for data analysis • New developments for SLHC October 1, 2008 Claudia-Elisabeth Wulz 18
Papers under Group responsibility (since 2003) • Refereed Journals (6) * The CMS Drift Tube Trigger Track Finder (13 group authors, 6 others) J. Erö, Ch. Deldicque, M. Galánthay, H. Bergauer, M. Jeitler, K. Kastner, B. Neuherz, I. Mikulec, M. Padrta, H. Rohringer, H. Sakulin, A. Taurok, C. -E. Wulz 2008 JINST 3 S 08004 * Measurement Technology for the CMS Experiment (1 group author) C. -E. Wulz, Invited article for Special Issue on Metrological Aspects of Accelerator Technology and HEP Experiments Meas. Sci. Technol. 18 (2007) 2424 -2431 * Design and Development of a Graphical Setup Software for the CMS Global Trigger (6 group authors) Ph. Glaser, T. Nöbauer, H. Bergauer, M. Padrta, A. Taurok, C. -E. Wulz IEEE Trans. Nucl. Sci. Vol 53 Nr. 3 (2006) 1282 -1291 * Conceptual Design of the CMS Trigger Supervisor (2 group authors + 1 other) I. Magrans de Abril, C. -E. Wulz (Vienna), J. Varela (Lisboa, CERN) IEEE Trans. Nucl. Sci. Vol 53 Nr. 2 (2006) 474 -483 * The efficiency of the CMS Level-1 Trigger for supersymmetric events (10 group authors, 2 others) L. Boldizsar, J. Erö, M. Fierro, P. Hidas, A. Jeitler, N. Neumeister, P. Porth, H. Rohringer, L. Rurua, H. Sakulin, A. Taurok, C. -E. Wulz Eur. Phys. J. C 40, s 2. 1 -s 2. 13 (2005) * Improved di-muon trigger rate simulation methods for the CMS experiment at LHC (1 group author) H. Sakulin J. Phys. G: Nucl. Part. Phys. 30 (2004) N 45 -N 55 October 1, 2008 Claudia-Elisabeth Wulz 19
Papers with Group collaboration (since 2003) • Refereed Journals (3) * The CMS Experiment at the CERN LHC (21 group authors, many others; editor of Trigger chapter) CMS Collaboration W. Adam et al. 2008 JINST 3 P 08006 * Results of the first integration test of the CMS drift tubes muon trigger (2 group authors, 82 others) M. Aldaya et al. Ch. Deldicque, J, Erö Nucl. Instr. Meth. A 579 (2007) 951 -960 * The CMS High Level Trigger (14 group authors, many others) CMS Trigger and Data Acquisition Group, W. Adam, T. Bergauer, C. Deldicque, J. Erö, R. Frühwirth, M. Jeitler, K. Kastner, S. Kostner, N. Neumeister, M. Padrta, P. Porth, H. Rohringer, H. Sakulin, J. Strauss, A. Taurok, G. Walzel, C. -E. Wulz Eur. Phys. J. C 46 (2006) 605 -667 October 1, 2008 Claudia-Elisabeth Wulz 20
Conference Proceedings (since 2003) * Commissioning of the CMS Trigger, H. Rohringer, for the CMS Trigger Group Proc. of the 34 th International Conference on High Energy Physics, Philadelphia, USA, 29 July - 5 Aug. 2008 * Trigger Systems at LHC Experiments, M. Jeitler Proc. of 10 th Int. Conf. on Instrumentation and Colliding Beam Physics, Novosibirsk, 28 Feb. - 5 Mar. 2008, in print in NIM A * Status and Commissioning of the CMS Experiment at CERN, C. -E. Wulz Proc. of Europhysics Conference on High Energy Physics, Manchester, UK, 19 -24 July 2007, * Enhancing the User Interface of the Level-1 Trigger of the CMS Experiment, M. Magrans de Abril, I. Magrans de Abril Proc. of Real Time Conference, Fermilab, Batavia, USA, 29 Apr. - 4 May 2007 * The level-1 global trigger for the CMS experiment, M. Jeitler et al. , Proc. of the 12 th Workshop on Electronics for LHC Experiments, Valencia, Spain, 23 -27 Sep. 2006, JINST 2 P 01006 (2007) * Kaon Physics: Present and Future, I. Mikulec Proc. of 4 th International Workshop on Frontier Science, Milan, Biococca, Italy, 12 - 17 Sep. 2005, Milan 2005, New frontiers in subnuclear physics* 127 -138 * The CMS Experiment at CERN, C. -E. Wulz Proc. of SPIE International Congress on Optics and Optoelectronics, 29 Aug. - 2 Sep. 2005, 594821 (2005) * Implementation and Test of the First-Level Global Muon Trigger of the CMS Experiment, H. Sakulin, A. Taurok Proc. of 11 th Workshop on Electronics for LHC and Future Experiments, Heidelberg, Germany, 12 -16 Sep. 2005 * The CMS Trigger Supervisor Project, I. Magrans de Arbril Proc. of IEEE Nuclear Science Symposium, Puerto Rico, USA, 24 -27 Oct. 2005 (2005) 162 -166 * Muon Reconstruction Software in CMS, N. Neumeister Proc. of 7 th Int. Conference on Computing in HEP, Interlaken, Switzerland, 27 Sep. - 1 Oct. 2004, ICHEP 04 -227 * The CMS Experiment: Status and Physics, N. Neumeister Proc. of 8 th Conference on Intersections of Particle and Nuclear Physics, New York, USA, 19 -24 May 2003, AIP Conference Proceedings 698 (2004) 741 -744 * The First-Level and High-Level Muon Triggers of the Compact Muon Solenoid Experiment at CERN, H. Sakulin Proc. of IEEE Nuclear Science Symposium, Portland, OR, USA, 19 – 25 Oct. 2003, CMS CR 2003/045 * The Level-1 Global Muon Trigger for the CMS Experiment, H. Sakulin, A. Taurok Proc. of 9 th Workshop on Electronics for LHC and Future Experiments, Amsterdam, Netherlands, 29 Sep. - 3 Oct. 2003 Total number of conference proceedings: 13 October 1, 2008 Claudia-Elisabeth Wulz 21
Invited Talks (since 2003) * CMS Commissioning I. Mikulec, 4 th Conference on Physics at LHC, Split, Croatia, 29 Sep. - 4 Oct. 2008 * LHC und Österreichs Beteiligung am Compact Muon Solenoid C. -E. Wulz, Fachausschuss für Lehrkräfte an Höheren Schulen, ÖPG, Leoben, Austria, 5 Sep. 2008 * Trigger Systems at LHC Experiments M. Jeitler, 10 th Int. Conference on Instrumentation and Colliding Beam Physics, Novosibirsk, Russia, 28 Feb. - 5 Mar. 2008 * Status and Commissioning of the CMS Experiment at CERN C. -E. Wulz, Europhysics Conference on High Energy Physics, Manchester, UK, 21 July 2007 * Overview of the CMS Experiment C. -E. Wulz, Four Seas Conference, Iasi, Romania, 30 May 2007 * The CMS Experiment at CERN C. -E. Wulz, SPIE International Congress on Optics and Optoelectronics, Warsaw, Poland, 31 Aug. 2005 * Fundamentale Fragen der Teilchenphysik C. -E. Wulz, Atominstitut der Österreichischen Universitäten, Vienna, 3 May 2005 * CP-Verletzung im Kaonsystem: experimentelle Aspekte M. Jeitler, Institut für Theoretische Kernphysik, TU Wien, 24 Oct. 2005 * Kaon Physics: Present and Future I. Mikulec, 4 th International Workshop on Frontier Science, Milan, Bicocca, Italy, 12 - 17 Sep. 2005 * Muon Reconstruction Software in CMS N. Neumeister, 7 th International Conference on Computing in High Energy Physics, Interlaken, 27 Sep. - 1 Oct. 2004 * Fast Event Selection at CERN’s Large Hadron Collider C. -E. Wulz, Four Seas Conference, Istanbul, 10 Sep 2004 * Muon Reconstruction in CMS N. Neumeister, Workshop on Muons at Hadron Colliders, USA, 14 -15 Apr. 2004 * The CMS Experiment: Status and Physics N. Neumeister, 8 th Conference on Intersections of Particle and Nuclear Physics, New York, USA, 19 -24 May 2003 * Physics Selection at the LHC Total number of invited talks: 14 N. Neumeister, Purdue University, USA, 5 March 2003 October 1, 2008 Claudia-Elisabeth Wulz 22
Contributed Talks and Posters (since 2003) * Der CMS Level-1 Trigger am LHC, F. Teischinger Fachausschuss für Kern- und Teilchenphysik, ÖPG, Aflenz, 22 Sep. 2008 * Commissioning of the CMS Trigger, H. Rohringer 34 th International Conference on High Energy Physics, Philadelphia, USA, 29 July - 5 Aug. 2008 * Level-1 Global Trigger for SLHC, A. Taurok Workshop on SLHC, Paris, 11 Apr. 2008 * The Control and Hardware Monitoring System of the CMS Level-1 Trigger, I. Magrans de Abril IEEE Nuclear Science Symposium, Honolulu, USA, 31 Oct. 2007 * Die Nadel im Heuhaufen: Der Trigger des Experiments CMS am CERN-Beschleuniger, M. Jeitler Fachausschuss für Kern- und Teilchenphysik, ÖPG, Langenlois, 24 Sep. 2007 * The level-1 global trigger for the CMS experiment, M. Jeitler 12 th Workshop on Electronics for LHC Experiments, Valencia, Spain, 23 Sep. 2006 * The CMS Trigger Supervisor Project, I. Magrans de Arbril IEEE Nuclear Science Symposium, Puerto Rico, USA, 24 -27 Oct. 2005 * Fundamentale offene Fragen der Hochenergiephysik, C. -E. Wulz Fachausschuss Kern- und Teilchenphysik, ÖPG, Wien, 28 Sep. 2005 * Implementation and Test of the First-Level Global Muon Trigger of the CMS Experiment, H. Sakulin 11 th Workshop on Electronics for LHC and Future Experiments, Heidelberg, Germany, 13 Sep. 2005 * Supersymmetrie am Large Hadron Collider, C. -E. Wulz Fachausschuss für Kern- und Teilchenphysik, ÖPG, Weyer, 26 Sep. 2004 * CMS Detector Trigger Drift-Tube Track Finder, J. Erö IEEE Nuclear Science Symposium, Rome, Italy, 16 – 22 Oct. 2004 * The First-Level and High-Level Muon Triggers of the Compact Muon Solenoid Experiment at CERN, H. Sakulin IEEE Nuclear Science Symposium, Portland, OR, USA, 19 – 25 Oct. 2003 * The Level-1 Global Muon Trigger for the CMS Experiment, H. Sakulin 9 th Workshop on Electronics for LHC and Future Experiments, Amsterdam, The Netherlands, 29 Sep. - 3 Oct. 2003 Total number of contributed talks: 13 October 1, 2008 Claudia-Elisabeth Wulz 23
Invited Public Lectures (since 2003) * Systemintegration beim CMS-Teilchendetektor T. Nöbauer Metalab, Wien, 11 Apr. 2008 * Jagd auf Higgs und Co. C. -E. Wulz German Society for Aviation and Space Flight, Immenstaad, Germany, 29 March 2007 * Von den kleinsten Teilchen bis zum Kosmos C. -E. Wulz University Meets Public, VHS Meidling, Wien, 13 Dec. 2006 University Meets Public, VHS Brigittenau, Wien, 5 April 2006 University Meets Public, VHS Favoriten, Wien, 4 April 2006 * Der Pfeil der Zeit M. Jeitler University Meets Public, VHS Meidling, Wien, 4 March 2006 * Einführung in die Hochenergiephysik H. Rohringer Kitzbühel, 9 Sep. 2005 Total number of invited public lectures: 7 October 1, 2008 Claudia-Elisabeth Wulz 24
Future Plans - SLHC • Proposal under sole responsibility of Vienna (with Electronics I and Electronics II departments): Redesign of the Global Trigger and Global Muon Trigger for SLHC • Proposal under main responsibility of Vienna (with Madrid and Electronics I department) Redesign of the Phi and Eta Trigger Track Finders for SLHC • Upgrade of CMS Barrel Muon Detector (with other groups) October 1, 2008 Claudia-Elisabeth Wulz 25
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