Projekt-Jahresbericht 2012

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1 I N S T I T U T F Ü R H O C H E N E R G I E P H Y S I K DER ÖSTERREICHISCHEN AKADEMIE DER WISSENSCHAFTEN ILD-Experiment am zukünftigen Linear-Collider (ILC oder CLIC) ILD-Note / Februar 2013 Winfried MITAROFF, Christoph SCHWANDA Projekt-Jahresbericht 2012 Siehe auch die Homepage (Kurz-URL)

2 ILD Experiment at a future Linear Collider (ILC or CLIC) (Annual Project Report 2012) Main research project of the Institute Start: established , effective Scheduled completion: unknown. Introduction: The International Large Detector (ILD) is one of two validated experiments at the International Linear Collider (ILC), a worldwide project for a future linear e e + collider with center-of-mass energy up to 1 TeV. A modified version (ILD_clic) is under study for the Compact Linear Collider (CLIC), a less advanced project for e e + collisions up to 3 TeV. HEPHY is founding member of the ILD Collaboration. Our contributions are in detector optimization, software development (ilcsoft), and silicon tracker R&D (SiLC). These activities are partly supported since February 2011 by the EU s FP-7 project Advanced European Infrastructures for Detectors at Accelerators (AIDA). Group Members: Schwanda, Christoph Project leader since *) admin, 10 % Bergauer, Thomas (Dept. leader HLD) since SiLC, 10 % Dragičević, Marko (Research staff) since SiLC, 10 % Frühwirth, Rudolf (Dept. leader ASE) since ilcsoft, 20 % Glattauer, Robin (Doctoral student) since ilcsoft, 90 % Krammer, Manfred (Deputy director) since SiLC, 20 % Mitaroff, Winfried (Consultant, retired) since ilcsoft, 30 % Treberspurg, Wolfgang (Doctoral student) since SiLC, 10 % Valentan, Manfred (Doctoral student) since SiLC, 10 % *) since dates refer to the actual starting dates of work for this project; yellow bands for a working fraction > 50 %. International Positions: Manfred Krammer is chairman of the European Linear Collider Steering Committee (ELCSC). Highlights 2012: Development of a new software package for track reconstruction in the forward region of ILD (ForwardTracking), based on state-of-the-art algorithms (Cellular Automaton, Kalman Filter, Hopfield Neural Network), and its successful integration into ILD s software framework Marlin (diploma thesis of Robin Glattauer, July Oct. 2012). This was extensively used for the benchmark processings for the Detailed Baseline Design (DBD), vol. 3 of the ILC Technical Design Report (draft Dec. 2012). The package is coded in a clean object-oriented way and separated into 3 parts: core algorithms, interfaces to the framework, and detector-specific processors. This will facilitate its inclusion in AIDA s detector-independent Reconstruction Toolkits for HEP. Further activities: SiLC: Generic R&D for low-material high-precision silicon micro-strip modules, including sensor tests at a probe station in Vienna and at accelerator beams. This work is in synergy with Belle II and CMS. It is also part of AIDA s Work Package (WP) 9.4 Silicon Tracking Devices (convenor: T. Bergauer); a Milestone Report has been submitted.

3 Outlook to 2013: ilcsoft: Maintainance and improvements of our software RAVE (vertex reconstruction), LDT (fast detector simulation), and ForwardTracking (specific for ILD). SiLC: Continuation of generic R&D, synergetic with Belle II and CMS. AIDA: ILD s reconstruction software, including our ForwardTracking, may be regarded as a pilot implementation for the deliverable of WP 2.3 Reconstruction Toolkits for HEP, due by April The deliverable of WP 9.4 is due by Jan Future Strategies: The discovery at LHC of a new particle with mass of GeV, compatible with the Higgs boson, has urged the case for a linear e e + collider, operating in a first stage at s 250 GeV as a Higgs Factory, in order to perform precision measurements (e.g. spin, coupling strengths) complementary to those at LHC. Discussions have started in 2012, both in the frame of CERN Council s European Strategy for Particle Physics, and worldwide. In October 2012, the Japan Association of High Energy Physicists (JAHEP) issued a Proposal for a Phased Execution of the International Linear Collider to be constructed in Japan: starting as a Higgs Factory and to be upgraded in stages up to s = 500 GeV, with 50% of the construction costs to be covered by Japan; an extendibility up to the 1 TeV region to be secured. If adopted, Japan would take a lead on the high-energy frontier. In such a scenario, CERN might participate as umbrella organization representing its member states. The ILC Technical Design Report (TDR) will be finalized (including the costs) by June 2013, thus ending the mandate of the Global Design Effort (GDE) which started in A new organization, the Linear Collider Collaboration, was established by ICFA and will take over in Februray It will encompass 3 pillars: ILC, CLIC, and Physics & Detectors; appointed as director is Lyn Evans, as chairman of the Board Sachio Komamiya.

4 ILD-Experiment am Linear-Collider (ILC oder CLIC) (Projekt-Jahresbericht 2012) Liste der Publikationen 2012 in referierten Fachjournalen W. Treberspurg, T. Bergauer, M. Dragicevic, J. Hrubec, M. Krammer, M. Valentan: Measuring doping profiles of silicon detectors with a custom-designed probe station J. Inst. 7 (2012) P M. Valentan, T. Bergauer, M. Dragicevic, M. Friedl, E. Huemer, C. Irmler, W. Treberspurg: Comparison of n-side strip isolation methods for silicon sensors J. Inst. 7 (2012) P Publizierte Konferenzbeiträge M. Valentan, T. Bergauer, M. Dragicevic, M. Friedl, E. Huemer, C. Irmler, W. Treberspurg: Optimization of Strip Isolation for Silicon Sensors In Proc. Int. Conf. on Technology and Instrumentation in Particle Physics (TIPP 11), Chicago, 2011, Physics Procedia 00 (2012) 1-8. R. Glattauer, R. Frühwirth, J. Lettenbichler, W. Mitaroff: Forward Tracking in the ILD Detector In Proc. 13 th Int. Linear Collider Workshop (LCWS 11), Granada, Spanien, 2011, econf arxiv: [] Kollaborationsreports A. Ioannisian, T. Bergauer, M. Dragicevic, S. Frank, M. Krammer, W. Mitaroff, C. Schwanda, M. Valentan et al.: CLIC Conceptual Design Report (CDR), Vol. 2: Physics and Detectors at CLIC (Editors: L. Linssen et al.), CERN , Geneva 2012, ISBN N. N., T. Bergauer, M. Dragicevic, H. Eberl, S. Frank, M. Friedl, R. Frühwirth, R. Glattauer, M. Krammer, W. Mitaroff, C. Schwanda, W. Treberspurg et al.: International Linear Collider (ILC) Technical Design Report (TDR), Vol. 3: Physics and Detectors Detailed Baseline Design (DBD) (Editors: T. Behnke et al.), draft handed over to the ILCSC in Tokyo, 15 December T. Bergauer, M. Dragicevic, W. Treberspurg et al. (AIDA WP 9.4 Task Group): Layout of Silicon Micro-Strip Ladders AIDA Milestone 39 Report, Geneva, 21 May Abgeschlossene Diplomarbeit Robin Glattauer: Track Reconstruction in the Forward Region of the Detector ILD at the Electron- Positron Linear Collider ILC Diplomarbeit, TU Wien, Oktober 2012.

5 ILD-Experiment am Linear-Collider (ILC oder CLIC) (Projekt-Jahresbericht 2012) Konferenzteilnahmen und Beiträge 3 nd Linear Collider Forum ( Physics at the Terascale ) DESY, Hamburg, 7-9 Feb AIDA 1 st Annual Meeting DESY, Hamburg, March 2012 Teilnahme: T. Bergauer, M. Dragičević T. Bergauer (Vortrag): Status of Work Package 9.4 M. Dragičević (Vortrag): Status at HEPHY Vienna Joint ACFA Physics & Detector Workshop and GDE Meeting on the International Linear Collider (KILC 12) EXCO, Daegu, Korea, April 2012 Teilnahme: M. Krammer Symposium 100 Years of Cosmic Particles in honour of Victor F. Hess Univ. Innsbruck and EchoPhysics, Pöllau, Stmk., 1-5 May 2012 Teilnahme: W. Mitaroff (Kosten privat bez.) et al. Linear Collider Town Hall Meeting and informal SiLC Meeting Chimie ParisTech and Univ. Paris VII, Paris, 16 and 18 May 2012 Teilnahme: W. Mitaroff 6 th ILD Concept Workshop and Software Pre-Meeting Kyushu University, Fukuoka, Japan, May 2012 R. Glattauer (Vortrag): KiTrack and ForwardTracking R. Glattauer (Vortrag): Forward Tracking in the ILD Open Symposium on European Strategy for Particle Physics, etc. AGH-UST and IFJ-PAN, Kraków, 9-13 Sept Teilnahme: M. Krammer, Ch. Schwanda 62. Jahrestagung der Österr. Physikalischen Gesellschaft (ÖPG), Arbeitstagung des ÖPG-Fachausschusses Kern- und Teilchenphysik, 7. Energietag des ÖPG-Arbeitskreises Energie

6 Universität Graz, Sept Teilnahme: W. Mitaroff et al. W. Mitaroff (Vortrag): Forward Tracking in a Linear Collider Detector Symposium über Neuro-Onkologie und nichtklinische Forschung bei MedAustron MedAustron, Wiener Neustadt, Nov Teilnahme: W. Mitaroff (Kosten privat bez.) 9 th Vienna Central European Seminar ( Dark Matter, Dark Energy, Black Holes and Quantum Aspects of the Universe ) University Vienna, 30 Nov. - 2 Dec Teilnahme: W. Mitaroff et al. 6 th AFI Symposium ( Gravitational Puzzles ) Univ. Innsbruck, 7 Dec Teilnahme: W. Mitaroff (Kosten privat bez.) et al. Wiss. In- und Auslandsaufenthalte 3. Arbeitstreffen über Forward tracking at ILD DESY, Hamburg, 24. Jan Feb Wissenschaftsschulen und Outreach 6. Lange Nacht der Forschung 2012 ÖAW Haus der Wissenschaft, Wien, 27. April 2012 Betreuung: W. Mitaroff et al. 44. Herbstschule für Hochenergiephysik Maria Laach, BRD, Sept R. Glattauer (Vortrag): Spurrekonstruktion in der Vorwärtsrichtung des ILD Organisation wiss. Veranstaltungen XIII th Vienna Conference on Instrumentation (VCI 13) TU Vienna, Feb Local Organizing Committee: M. Krammer (chair), W. Mitaroff et al.