1. Oct. 1, 2008 (rev.2) Winfried A. Mitaroff Project Group for an Experiment at the International Linear Collider (ILC) HEPHY Scientific Advisory Board Meeting

2. 2Winfried A. MitaroffOct. 1, 2008 (rev.2) Mission statement To coordinate and further the experimental activities aiming at our participation in an experiment at a new e – e+ Linear Collider (e.g. the ILC). Project Group formally inaugurated in January 2006, but software and hardware activities started already in 2003 and 2004, respectively. Work done in close collaboration with the Institute’s Depts. for “Algorithms and Software Development”, “Semiconductor Detectors” and “Electronics 2”. Activities trying to achieve maximal synergy with the Institute’s Project Groups “CMS” and “BELLE”.

3. 3Winfried A. MitaroffOct. 1, 2008 (rev.2) Project Group members Winfried A. Mitaroff (head of the Project Group) Thomas Bergauer (head of Department HLD) Wolfgang Waltenberger (member of ASE) Student members: – Marko Dragičević (doctoral student in HLD) – Stephan Hänsel (doctoral student in HLD) – Fabian Moser (diploma student in ASE) – Manfred Valentan (diploma student in ASE) Associate members: – Rudolf Frühwirth (head of Department ASE) – Manfred Krammer (interimistic Director) – Meinhard Regler (retired, unpaid consultant) Note: ASE = Dept. for “Algorithms and Software Development” HLD = Department for “Semiconductor Detectors” (status of Oct. 1, 2008)

4. 4Winfried A. MitaroffOct. 1, 2008 (rev.2) Physics at the TeV scale

5. 5Winfried A. MitaroffOct. 1, 2008 (rev.2) Cross sections at the TeV scale

6. 6Winfried A. MitaroffOct. 1, 2008 (rev.2) Linear Collider concepts 2004

7. 7Winfried A. MitaroffOct. 1, 2008 (rev.2) International Linear Collider (ILC) Beam crossing structure:

8. 8Winfried A. MitaroffOct. 1, 2008 (rev.2) ILC detector concepts SiD = “Silicon Detector” (USA) LDC = “Large Detector Concept” (Europe) \ ILD = “Int. Large Detector” GLD = “Gaseous Large Detector” (Japan) / (Europe + Japan) 4th = “4 th Detector Concept” (Europe + USA)

9. 9Winfried A. MitaroffOct. 1, 2008 (rev.2) LDC and GLD detector layouts

10. 10Winfried A. MitaroffOct. 1, 2008 (rev.2) LDC vs. GLD tracking detectors

11. 11Winfried A. MitaroffOct. 1, 2008 (rev.2) LDC / ILD software framework The LCIO data model is also used by SiD, and is interfaced to GLD’s framework.

12. 12Winfried A. MitaroffOct. 1, 2008 (rev.2) Overview of activities in Vienna Software development: – Detector-independent vertex reconstruction toolkit, together with a standalone framework (RAVE / VERTIGO); – Fast detector simulation tool (LiC Detector Toy). Hardware R&D: Collaboration for silicon tracking in the ILC detectors (“SiLC Project”): – Si microstrip sensors of minimized material budget; – Design and construction of a Si envelope around a “Large Prototype TPC”, tested in a superconducting magnet at DESY. For details, see report by the Dept. for “Semiconductor Detectors”. Other activities: – Organization of the “3 rd ECFA Workshop on Physics and Detectors for the ILC”, Vienna, Nov. 14 - 17, 2005 [LOC chair: W. Mitaroff]. – Studies on the physics at ILC (e.g. signatures for SUSY search) since 1991 by the “Theory Project Group”; for details, see their report.

13. 13Winfried A. MitaroffOct. 1, 2008 (rev.2) The VERTIGO framework

14. 14Winfried A. MitaroffOct. 1, 2008 (rev.2) The RAVE Kinematics Fitter

15. 15Winfried A. MitaroffOct. 1, 2008 (rev.2) RAVE / VERTIGO: an example Generated Z 0 → μ – μ + decays by VERTIGO’s “kinematic vertex gun”, vertex reconstruction by RAVE without or with kinematic constraint on the Z 0 mass: clear improvement of the Z 0 momentum resolution P Z. More realistic tests done, e.g. with full simulation e – e + → W – W + → 4 jets ( F. Moser: Diploma Thesis, University of Technology, Vienna, Sept. 2008).

16. 16Winfried A. MitaroffOct. 1, 2008 (rev.2) LiC Detector Toy: the GUI

17. 17Winfried A. MitaroffOct. 1, 2008 (rev.2) LiC Detector Toy: an example LDC’ detector layout study in the forward region ( ϑ = 4... 10 o ): relative momentum resolution σ(Δp T /p T 2 ) and transversal impact parameter as a function of the transversal momentum p T. Mini-Workshop “Common tracking detector description for fast simulation” was organized March 26 - 28, 2008 at HEPHY, Vienna.

18. 18Winfried A. MitaroffOct. 1, 2008 (rev.2) Innovative “origami” chip design For details, see reports by the Depts. for “Semiconductor Detectors” and “Electronics 2”.

19. 19Winfried A. MitaroffOct. 1, 2008 (rev.2) 3 rd ECFA Workshop, Vienna 2005 Participants by country:

20. 20Winfried A. MitaroffOct. 1, 2008 (rev.2) International connections ECFA Study on Physics and Detectors for a Linear Collider and predecessors “Detector Outline Documents” (DODs) for the concepts – LDC (July 2006): Th. Bergauer, W. Mitaroff, M. Regler, W. Waltenberger; – SiD (May 2006): W. Mitaroff. Proposal to the ILCSC “Detector Review Panel on Tracking” (Jan. 2007): – The SiLC Collaboration: Th. Bergauer, W. Mitaroff *), M. Regler, M. Valentan *) editor of Chapter III-1-2 “Macroscopic FAST and FULL detector simulations”. “ILC Reference Design Report” (RDR) of joint GDE & WWS (Aug. 2007): – Part 2 “Physics at the ILC”: H. Eberl, W. Majerotto, K. Kovarik (too late, only online); – Part 4 “Detectors”: Th. Bergauer, M. Krammer, W. Mitaroff, M. Regler, W. Waltenberger. “Expression of Interest” (EoI) to Research Director Yamada (March 2008): – ILD Concept: HEPHY Vienna. [Note: this does not imply any financial committment] “Letter of Intent” (LoI) to the IDAG due by March 31, 2009: – This is the next big challenge for our collaboration ! – No definite selection, but “validation” of the concepts by IDAG. “Technical Design” (TD) Phase I (due by 2010), Phase II (due by 2012): – In synchronization with the GDE “Technical Design” effort. – Significant “new physics” results available from LHC ? – The big decisions: ILC or CLIC or nothing ? Which site ?

21. 21Winfried A. MitaroffOct. 1, 2008 (rev.2) Publications 2004 - 07 W. Mitaroff, W. Waltenberger: A vertex reconstruction toolkit and interface to generic objects (VERTIGO). Proc. 7 th Int. Conf. on Linear Colliders (LCWS): Paris, F; April 19 - 23, 2004. Editors J.-C. Brient, H. Videau: Ed. de l’Ecole Polytéchnique, Palaiseau, F, 2005; ISBN 2-7302-1281-7, Vol. 1, 413. W. Mitaroff, G. Richter, W. Waltenberger: Detector-independent vertex reconstruction toolkit (VERTIGO). Proc. 14 th Int. Conf. on Computing in High Energy and Nuclear Physics (CHEP): Interlaken, CH; Sept. 27 - Oct. 1, 2004. Editors A. Aimar, J. Harvey, N. Knoors: CERN, Genève, CH, 2005; CERN-2005-02 Vol. 1, 272. W. Waltenberger, F. Moser: RAVE – an open, extensible, detector-independent toolkit for reconstr. of interaction vertices. Proc. IEEE Nuclear Science Symposium (NSS): San Diego, USA; Oct. 30 - Nov. 3, 2006. Editor B. Phlips: IEEE 2007; ISBN 1-4244-0561-0, ISSN 1082-3654 (entry NSS/06-104). W. Waltenberger, W. Mitaroff, F. Moser: RAVE – a detector-independent vertex reconstruction toolkit. Proc. XI th Int. Vienna Conf. on Instrumentation (VCI): Vienna, A; Feb. 19 - 24, 2007. Editors G. Badurek, J. Hrubec, M. Jeitler, M. Krammer, M. Regler: Nucl.Instr.Meth. A 581 (2007) 549. M. Regler, M. Valentan, R. Frühwirth: The LiC Detector Toy program. Proc. XI th Int. Vienna Conf. on Instrumentation (VCI): Vienna, A; Feb. 19 - 24, 2007. Editors G. Badurek, J. Hrubec, M. Jeitler, M. Krammer, M. Regler: Nucl.Instr.Meth. A 581 (2007) 553.

22. 22Winfried A. MitaroffOct. 1, 2008 (rev.2) Publications 2004 - 07 ( cont’d ) W. Waltenberger, B. Pflugfelder, H.V. Riedel: RAVE – first vertexing and b-tagging results with LCIO data. Proc. 10 th Int. Workshop on Linear Colliders (LCWS): Hamburg, D; May 30 - June 3, 2007. DESY, Hamburg, D, 2008 (in print); preprint HEPHY-PUB-848/07. W. Mitaroff, M. Regler, M. Valentan, R. Höfler: Track resolution studies with the “LiC Detector Toy” Monte Carlo tool. Proc. 10 th Int. Workshop on Linear Colliders (LCWS): Hamburg, D; May 30 - June 3, 2007. DESY, Hamburg, D, 2008 (in print); preprint HEPHY-PUB-849/07. M. Regler, W. Mitaroff, M. Valentan, R. Frühwirth, R. Höfler: The “LiC Detector Toy” program. Proc. 17 th Int. Conf. on Computing in High Energy and Nuclear Physics (CHEP): Victoria, CDN; Sept. 2 - 7, 2007 (in print); preprint HEPHY-PUB-851/07. W. Waltenberger, W. Mitaroff, F. Moser, B. Pflugfelder, H.V. Riedel: The RAVE / VERTIGO vertex reconstruction toolkit and framework. Proc. 17 th Int. Conf. on Computing in High Energy and Nuclear Physics (CHEP): Victoria, CDN; Sept. 2 - 7, 2007 (in print); preprint HEPHY-PUB-852/07. W. Waltenberger, G. Richter, H.V. Riedel: DataHarvester – an abstraction layer for accessing scientific data from various sources. Proc. 17 th Int. Conf. on Computing in High Energy and Nuclear Physics (CHEP): Victoria, CDN; Sept. 2 - 7, 2007 (in print); preprint HEPHY-PUB-853/07. For SiLC publications: see report by the Department for “Semiconductor Detectors”.

23. 23Winfried A. MitaroffOct. 1, 2008 (rev.2) Talks and posters 2003 - 08 International Linear Collider: – 2 contributed talks at conferences. RAVE / VERTIGO: – 2 invited talks at other institutes; – 16 contributed talks at conferences; – 7 contributed posters at conferences. LiC Detector Toy: – 1 invited talk at another institute; – 13 contributed talks at conferences; – 3 contributed posters at conferences. SiLC R&D: – see report by the Department for “Semiconductor Detectors”.

24. 24Winfried A. MitaroffOct. 1, 2008 (rev.2) Outlook to the future Short term – Include bremsstrahlung eloss in LiC_Det_Toy – Optimization of ILD’s Si tracker with LiC_Det_Toy, (in particular w.r.t. the forward/backward region) – Full intergration of RAVE into the Marlin framework – Exploit the experience gained with the test beams – Support the submission of ILD’s LoI by March 2009 Medium term – Contribute to Marlin/Reco’s track reconstruction (present version still based on old DELPHI code) – Continue R&D for the Si microstrip sensors – Continue intergrated detector tests in test beams – Prepare for ILD’s TD Phases I and II (2010/12) Long term – React to IDAG’s “validation” of the ILD concept – React to the long-term strategy (ILC ? CLIC ?) – Keep flexibility for the time beyond 2012

25. 25Winfried A. MitaroffOct. 1, 2008 (rev.2) Backup Slides

26. 26Winfried A. MitaroffOct. 1, 2008 (rev.2) The LDC concept (Jan. 2008)

27. 27Winfried A. MitaroffOct. 1, 2008 (rev.2) RAVE / VERTIGO – main features Creation of an extensible, detector-independent toolkit (RAVE) for vertex reconstruction, to be embedded into various environments: – RAVE = “Reconstruction (of vertices) in abstract versatile environments”. – The toolkit includes both vertex finding (a pattern recognition task a.k.a. track bundling) and vertex fitting (estimation of the vertex parameters and error matrix); – Synergy used: starting point was the old CMS software (ORCA) which has been refactored and ported to the new CMS framework (CMSSW); – Principle algorithmic assets are robustified reconstruction methods, with estimators based on adaptive filters, thus downweighting the influence of outlier tracks; – Recent improvement: vertex fitting with kinematic constraints; – RAVE is foreseen to stay source-code compatible with CMSSW, but thanks to its generic API may easily be embedded into other software environments. Creation of a simple standalone framework (VERTIGO) for fast implemen- tation, debugging and analyzing of the core algorithms: – VERTIGO = “Vertex reconstruction tools and interfaces to generic objects”. – Framework tools available: Visualization, Histogramming, a “Vertex Gun” for generating test events, an LCIO input event generator, and a “Data Harvester & Seeder” for flexible I/O; – VERTIGO is able to emulate various detector setups by a flexible “skin” concept.

28. 28Winfried A. MitaroffOct. 1, 2008 (rev.2) RAVE / VERTIGO – status Present status: – Code is C++; RAVE depends on CLHEP and Boost, VERTIGO’s visualization also on Coin3d; – Tested with Linux (Debian, SL4), Mac OSX and Windows (VisualStudio), on Intel and PPC; – RAVE may be called directly from C++, and with a wrapper (SWIG) also from Java and Python; – Adaptor classes (“glue code”) exist for embedding RAVE into the reconstruction frameworks Marlin (C++) and org.lcsim (Java); tested with LDC/ILD and SiD full simulation data; – RAVE has been successfully embedded into 4th’s ILCroot (C++) framework by INFN Lecce; – Simple VERTIGO skins exist for the LDC/ILD and SiD; tested with LCIO formatted input data. New features: – Interface with the ZvTop topological vertex search algorithm (developed by RAL, UK); – Inclusion of the beam spot in a primary vertex fit, and re-fitting the tracks by a smoother step; – Implementation of “heavy flavour tagging”, and kinematics fitting (see previous slide). Availability: – The Vienna ILC Project Group is committed to maintenance, documentation and distribution; – A beta release is available, and can be downloaded from the web: http://project/hepforge.org/rave/ (repository for RAVE source code, docus, etc); http://stop.itp.tuwien.ac.at/websvn/ (repository for glue code and VERTIGO); – RAVE’s installation support is for the GNU build system (Autotools); glue code is supported by CMake when required by the environment (e.g. for MarlinRave).http://project/hepforge.org/rave/http://stop.itp.tuwien.ac.at/websvn/

29. 29Winfried A. MitaroffOct. 1, 2008 (rev.2) LiC Detector Toy – main features The “LiC Detector Toy” is a simple, powerful program tool for detector design studies. It aims at investigating track resolutions for optimizing the layout (geometries and material budgets). The Detector model corresponds to a collider experiment with solenoid magnet. The geometry is cylinder symmetric w.r.t. beam axis z, but not necessarily w.r.t. the z = 0 plane. Surfaces are either cylinders (“barrel”), or planes (“forward/backward region”). The track model is a helix. Supports tracking from the barrel into the forward/backward region, and vice versa (re-entry). Simulation takes into account multiple scattering, detector inefficiencies and measurement errors, but no other degredation. Only single tracks are processed, there is no pattern recognition ! Track reconstruction is performed by a Kalman filter, with the reference surface being the inside of the beam tube. Goodness-of-fit tests are standard. Supported detectors are Si pixels, Si strips (single- or double-sided with any stereo angle), and a TPC. Detector description defined by a simple “input sheet”. An interactive GUI is available. The program is written in MatLab (a language and IDE by MathWorks). The latest version 2.0 is also available for GNU Octave, albeit without the GUI. A beta release is available on request. For more information, please, consult the web at http://wwwhephy.oeaw.ac.at/p3w/ilc/lictoy/LDTsource_20.zip (source code), http://wwwhephy.oeaw.ac.at/p3w/ilc/lictoy/UserGuide_20.pdf (User’s Guide). http://wwwhephy.oeaw.ac.at/p3w/ilc/lictoy/LDTsource_20.zip http://wwwhephy.oeaw.ac.at/p3w/ilc/lictoy/UserGuide_20.pdf Next version will include energy loss by bremsstrahlung for electron and positron tracks.

30. 30Winfried A. MitaroffOct. 1, 2008 (rev.2) Selected Reports D. Kiesielewska,... Th. Bergauer, W. Mitaroff, M. Regler, W. Waltenberger,... (LDC Working Group): Detector Outline Document for the Large Detector Concept. Rev. 24.08.2006. http://www.ilcldc.org/documents/dod/outline.pdfhttp://www.ilcldc.org/documents/dod/outline.pdf T. Abe,... W. Mitaroff,... (SiD Working Group): SiD Detector Outline Document. Rev. 19.05.2006. http://hep.uchicago.edu/~oreglia/siddod.pdfhttp://hep.uchicago.edu/~oreglia/siddod.pdf A. Savoy-Navarro (editor),... Th. Bergauer, M. Krammer, W. Mitaroff, M. Regler, M. Valentan (The SiLC Collaboration): Proposal to the ILCSC “R&D Panel on Tracking for the ILC”. Submitted 29.01.2007. http://lpnhe-lc.in2p3.fr/DOCS/beijing.pdfhttp://lpnhe-lc.in2p3.fr/DOCS/beijing.pdf A. Djouadi, J. Lykken, K. Mönig, Y. Okada, M. Oreglia, S. Yamashita (editors),... W. Majerotto, H. Eberl, K. Kovarik,...: International Linear Collider “Reference Design Report” (RDR), Vol. 2 “Physics at the ILC”. ILC-report-2007-001, FNAL/KEK/DESY Aug. 2007. ISBN 978-92-9083-299-7, ISSN 0007-8328. T. Behnke, Ch. Damerell, J. Jaros, A. Miyamoto (editors),... Th. Bergauer, M. Krammer, W. Mitaroff, M. Regler, W. Waltenberger,...: International Linear Collider “Reference Design Report” (RDR), Vol. 4 “Detectors”. ILC-report-2007-001, FNAL/KEK/DESY Aug. 2007. ISBN 978-92-9083-301-7, ISSN 0007-8328. M. Regler, M. Valentan, R. Frühwirth: LiC Detector Toy – Version 2.0 User’s Guide. Report HEPHY-PUB-863/08 (02.05.2008). For SiLC reports: see report by the Department for “Semiconductor Detectors”.

31. 31Winfried A. MitaroffOct. 1, 2008 (rev.2) Invited Talks W. Mitaroff: VERTIGO – Vertex Reconstruction Toolkit. Rutherford-Appleton Laboratory (RAL): Chilton, Didcot, UK; Sept. 6, 2004. W. Waltenberger: RAVE – an open, extensible, detector-independent toolkit for reconstruction of interaction vertices. Stanford Linear Accelerator Centre (SLAC), Menlo Park, USA; Oct. 26, 2006. M. Valentan: The LiC Detector Toy. Instituto de Fisica Corpuscular (IFIC), València, E: Nov. 27, 2006. For SiLC invited talks: see report by the Dept. for “Semiconductor Detectors”.

32. 32Winfried A. MitaroffOct. 1, 2008 (rev.2) Contributed Talks and Posters RAVE / VERTIGO – 1 st ECFA Workshop on Physics and Det. for a Lin. Collider: Montpellier, F; Nov. 13 - 16, 2003. – CMS Workshop on Vertex Reconstruction: Zurich, CH; Nov. 18 - 19, 2003. – 7 th Int. Workshop on Linear Colliders (LCWS): Paris, F; April 19 - 23, 2004. – 2 nd ECFA Workshop on Physics and Detectors for the ILC: Durham, UK; Sept. 1 - 4, 2004. – Austrian Physical Society (FAKT & OePG): Weyer and Linz, A; Sept. 26 - 30, 2004 [poster]. – 14 th Int. Conf. on Computing in H.E.P. (CHEP): Interlaken, CH; Sept. 27 - Oct. 1, 2004 [poster]. – 4 th ILC Simulation Workshop: SLAC, Menlo Park, USA; March 17, 2005. – 3 rd ECFA Workshop on Physics and Detectors for the ILC: Vienna, A; Nov. 14 - 17, 2005. – ILC Software and Tools Workshop (ILCSW): Cambridge, UK; April 4 - 6, 2006. – 3 rd SiLC Collaboration Meeting: Liverpool, UK; June 13 - 14, 2006. – IEEE Nuclear Science Symposium (NSS): San Diego, USA; Oct. 30 - Nov. 3, 2006. – 4 th ECFA Workshop on Physics and Detectors for the ILC: València, E; Nov. 6 - 11, 2006. – XI th Int. Vienna Conf. on Instrumentation (VCI): Vienna, A; Feb. 19 - 24, 2007 [poster]. – ILC Software and Tools Workshop (ILCSW): LAL, Orsay, F; May 2 - 4, 2007. – 10 th Int. Workshop on Linear Colliders (LCWS): Hamburg, D; May 30 - June 3, 2007. – 17 th Int. Conf. on Computing in H.E.P. (CHEP): Victoria, CDN; Sept. 2 - 7, 2007 [2 posters]. – Austrian Phys. Soc. (FAKT & OePG): Langenlois and Krems, A; Sept. 24 - 28, 2007 [2 posters]. – American Linear Collider Physics Group (ALCPG): FNAL, Batavia, USA; Oct. 22 - 26, 2007. – 1 st ILD Collaboration Workshop: Zeuthen, DE; Jan. 14 - 16, 2008. – 5 th ECFA Workshop on Physics and Detectors for the ILC: Warsaw, PL; June 9 - 12, 2008. – Austrian Physical Soc. / Nuclear & Particle Physics (FAKT): Aflenz, A; Sept. 21 - 23, 2008.

33. 33Winfried A. MitaroffOct. 1, 2008 (rev.2) Contrib. Talks and Posters ( cont’d ) LiC Detector Toy – 3 rd SiLC Collaboration Meeting: Liverpool, UK; June 13 - 14, 2006. – 4 th ECFA Workshop on Physics and Detectors for the ILC: València, E; Nov. 6 - 11, 2006. – 4 th SiLC Collaboration Meeting: Barcelona, E; Dec. 18 - 20, 2006. – XI th Int. Vienna Conf. on Instrumentation (VCI): Vienna, A; Feb. 19 - 24, 2007 [poster]. – ILC Software and Tools Workshop (ILCSW): LAL, Orsay, F; May 2 - 4, 2007. – 10 th Int. Workshop on Linear Colliders (LCWS): Hamburg, D; May 30 - June 3, 2007. – 17 th Int. Conf. on Computing in H.E.P. (CHEP): Victoria, CDN; Sept. 2 - 7, 2007 [poster]. – SiLC Collaboration Special Meeting: CERN, Genève, CH; Sept. 10 and 12, 2007 [2 talks]. – Austrian Phys. Soc. (FAKT & OePG): Langenlois and Krems, A; Sept. 24 - 28, 2007 [poster]. – American Linear Collider Physics Group (ALCPG): FNAL, Batavia, USA; Oct. 22 - 26, 2007. – 6 th SiLC Collaboration Meeting: Torino, IT; Dec. 17 - 19, 2007. – 1 st ILD Collaboration Workshop: Zeuthen, DE; Jan. 14 - 16, 2008. – ACFA Workshop on Physics and Detectors for the ILC: Sendai, JP; March 3 - 6, 2008. – 5 th ECFA Workshop on Physics and Detectors for the ILC: Warsaw, PL; June 9 - 12, 2008. – 2 nd EUDET Meeting on Physics and Detectors for CLIC: CERN, Genève, CH; July 25, 2008. SiLC – see report by the Department for “Semiconductor Detectors”. International Linear Collider – Austrian Physical Society / Nuclear & Particle Physics (FAKT): Vienna, A; Sept. 27 - 29, 2005. – Austrian Physical Soc. / Nuclear & Particle Physics (FAKT): Langenlois, A; Sept. 24 - 25, 2007.