1. Various information - news News from coll. board meeting 1.2 Budget 2013 ECFA LC workshop at DESY end May ICFA and LCC meetings at Triumf European Strategy implications Input to the US Snowmass process …

2. The CLIC Workshop 2013 (295 people signed up, 250 contributions - Open Session Monday morning) 2 CLIC PROJECT CORE ACTVITIES Tuesday and Wednesday: Parallel working groups for accelerator topics (3) and detector-physics (2) Review of technical studies related to accelerator and detector and physics studies – with focus on ongoing and planned activities 2012-2017 Focus on the collaboration involvement and responsibilities Define goals and milestones for end 2013 across project Tuesday evening: Detector and Physics Institute Board Friday AM: Accelerator plenary Friday PM: CLIC Accelerator Collaboration Board Many common developments between CLIC and ILC, related to accelerators and detector&physics CLIC PROJECT CORE ACTVITIES Tuesday and Wednesday: Parallel working groups for accelerator topics (3) and detector-physics (2) Review of technical studies related to accelerator and detector and physics studies – with focus on ongoing and planned activities 2012-2017 Focus on the collaboration involvement and responsibilities Define goals and milestones for end 2013 across project Tuesday evening: Detector and Physics Institute Board Friday AM: Accelerator plenary Friday PM: CLIC Accelerator Collaboration Board Many common developments between CLIC and ILC, related to accelerators and detector&physics ENERGY FRONTIER PROJECTS AT CERN AFTER LHC – THE CONTEXT OF THE CLIC ACTIVITIES Monday afternoon: Common session with main other alternatives for energy frontier projects at CERN after LHC (LHC energy upgrades), including presentations of what we can expect from LHC and a potential Higgs-factory Status and very first focus on potential common or co-ordinated activities in the coming years (2013- 2017) ENERGY FRONTIER PROJECTS AT CERN AFTER LHC – THE CONTEXT OF THE CLIC ACTIVITIES Monday afternoon: Common session with main other alternatives for energy frontier projects at CERN after LHC (LHC energy upgrades), including presentations of what we can expect from LHC and a potential Higgs-factory Status and very first focus on potential common or co-ordinated activities in the coming years (2013- 2017) HIGH GRADIENT DAY Thursday: Presentation by labs/projects with core technology normal conducting high gradient structures and high efficiency power sources (11 project and 18 industry presentations) Increase exchange of information between these activities, consider more common technical activities, and work towards increasing the industrial technology base for these projects HIGH GRADIENT DAY Thursday: Presentation by labs/projects with core technology normal conducting high gradient structures and high efficiency power sources (11 project and 18 industry presentations) Increase exchange of information between these activities, consider more common technical activities, and work towards increasing the industrial technology base for these projects

4. Current CLIC Collaboration Gazi Universities (Turkey) Helsinki Institute of Physics (Finland) IAP (Russia) IAP NASU (Ukraine) IHEP (China) INFN / LNF (Italy) Instituto de Fisica Corpuscular (Spain) IRFU / Saclay (France) Jefferson Lab (USA) John Adams Institute/Oxford (UK) Joint Institute for Power and Nuclear Research SOSNY /Minsk (Belarus) PSI (Switzerland) RAL (UK) RRCAT / Indore (India) SLAC (USA) Sincrotrone Trieste/ELETTRA (Italy) Thrace University (Greece) Tsinghua University (China) University of Oslo (Norway) University of Vigo (Spain) Uppsala University (Sweden) UCSC SCIPP (USA) ACAS (Australia) Aarhus University (Denmark) Ankara University (Turkey) Argonne National Laboratory (USA) Athens University (Greece) BINP (Russia) CERN CIEMAT (Spain) Cockcroft Institute (UK) ETH Zurich (Switzerland) FNAL (USA) John Adams Institute/RHUL (UK) JINR Karlsruhe University (Germany) KEK (Japan) LAL / Orsay (France) LAPP / ESIA (France) NIKHEF/Amsterdam (Netherland) NCP (Pakistan) North-West. Univ. Illinois (USA) Patras University (Greece) Polytech. Univ. of Catalonia (Spain) CLIC multi-lateral collaboration - 48 Institutes from 25 countries 4 Detector and Physics Studies for CLIC being organized in a similar manner, but with less formal agreements – yet allowing a collaboration like structure to organize the work, elections and making decisions about priorities and policies Over the last months increased to 48 institutes from 25 countries adding Jerusalem, Belgrade, Alba and Tartu to the list – linked to 2012-2016 work-programme On-going discussions with 5 more groups … Over the last months increased to 48 institutes from 25 countries adding Jerusalem, Belgrade, Alba and Tartu to the list – linked to 2012-2016 work-programme On-going discussions with 5 more groups …

5. Budgets and plans CLIC budget at CERN for 2013 in agreement with the MTP 2012 – Comment in text concerning pressure on personnel (referring to LHC incl. upgrades and LS1) MTP 2013 text submitted aligning with European Strategy statements, for example as overall goal: – Design-studies of an e+/e- multi-TeV high-energy frontier linear collider based on a novel two-beam accelerator scheme, with the goal of being able to propose CLIC as an option for a post-LHC accelerator project at CERN at the time of next European Strategy update. The main feasibility issues, cost and project timelines for CLIC have been developed, demonstrated and documented in a comprehensive Conceptual Design Report (CDR) completed in 2012. The work is now fully focused on developing a Project Implementation Plan by 2016-17, when physics results from LHC running at full energy are available to guide the way for the future. The work-programme, technical R&D and design studies, are carried out by a collaboration of 48 institutes providing the overall (M&P) resources for the activities. A central element of the programme is further integrated system tests, among them the measurements carried out in the CLIC test facility (CTF3) at CERN and operated by the collaboration. The CLIC accelerator studies are closely connected with associated physics and detector studies for such a machine, using LHC physics guidance maximally for design optimization of the accelerator and detectors. 5

7. WGs WG1 Injector Systems: –sources and DR combined into one WG. Suggested conveners Wei Gai, Yannis Papaphilippou, Masao Kuriki or Junji Urakawa WG2 BDS/MDI: –suggested conveners: Rogelio Tomas, Glen White, Toshiaki Tauchi, Lau Gatignon WG3 Luminosity performance: –basically LET beam dynamics. suggested conveners: Andrea Latina, Kiyoshi Kubo, Nikolay Solyak WG4 SCRF linac technology: –suggested conveners: Hitoshi Hayano, Rongli Geng, WDM WG5 Accelerator Design & Integration (AD&I) –Marc Ross, Akira Yamamoto, Olivier Napoly –programme for next 2 to 3 years (high level management) –CFS site-specific work (Japan): prepare for the decision. Possible layout modifications. CF issues. (integrated) Power consumption. Ventilation (possibly with CLIC) EDMS issues / tech. documentation / forward planning …

8. Machine Plenaries Monday plenary: general CLIC, technical CLIC accelerator, technical CLIC d&p Monday 14:30-16:00 – machine plenary –CTF3 presentation (status, goals) Corsini? –ILC integrated systems tests Walker? –ATF/ATF2 Terunuma? –Accelerator goals for the workshop Ross? ATF collaboration meeting Wednesday –all day. Satellite meetings –Yes –Discuss and finalise next week (LCC / ILC-TB) Guidelines: Focus on future programme, for CLIC/ILC/common No specific CTF3 session No specific X-band session (Trieste workshop the week after) Many instrumentation issues not covered

9. International Organizing Commettee Gerardo D’Auria (Sincrotrone Trieste) Toshiyasu Higo (KEK) Sami Tantawi (SLAC) Walter Wuensch (CERN) Local Organizing Committee: Michela Bassanese Letizia Pierandrei Stefano Deiuri Claudio Serpico HG2013 International Workshop on Breakdown Science and High Gradient Technology ICTP, Adriatico Guesthouse, Kastler Lecture Hall, Trieste, Italy 3-6 June 2013 Information and Registration: https://indico.cern.ch/

10. LCB-ICFA Triumf February 10 Combined WG report: https://indico.cern.ch/materialDisplay.py?contribId=2&materialId=0&confId =239376 https://indico.cern.ch/materialDisplay.py?contribId=2&materialId=0&confId =239376 CLIC report: https://indico.cern.ch/materialDisplay.py?contribId=2&materialId=1&confId =239376 https://indico.cern.ch/materialDisplay.py?contribId=2&materialId=1&confId =239376

11. The LCC Organisation and CLIC 11 Issues for CLIC: Improve common work with ILC (optimize resources) – see below Keep strong CLIC physics and detector activities as identifiable part of overall P&D box (we have common CLIC steering group and very direct weekly contacts) Understand machine committee organization Issues for CLIC: Improve common work with ILC (optimize resources) – see below Keep strong CLIC physics and detector activities as identifiable part of overall P&D box (we have common CLIC steering group and very direct weekly contacts) Understand machine committee organization In addition common working groups on: Cost and Schedule, Civil Engineering and Conventional Facilities, Technical systems – and a General Issues Working Group

12. The CLIC concept have been developed over many years. During the last 4-5 years there has been a concerted effort to prepare a Conceptual Design Report, to be ready when LHC data-taking was expected to be well underway (part of the European Strategy as formulated in 2006) Focus has been on addressing all key critical issues for the concept, as well developing a coherent implementation model, and associated detector and physics studies to illustrate the physics performance The CLIC concept have been developed over many years. During the last 4-5 years there has been a concerted effort to prepare a Conceptual Design Report, to be ready when LHC data-taking was expected to be well underway (part of the European Strategy as formulated in 2006) Focus has been on addressing all key critical issues for the concept, as well developing a coherent implementation model, and associated detector and physics studies to illustrate the physics performance CLIC project time-line (input to European Strategy)

13. 13 ENERGY FRONTIER PROJECTS AT CERN AFTER LHC – THE CONTEXT OF THE CLIC ACTIVITIES Open Session during the CLIC workshop end January: Common session with main other alternatives for energy frontier projects at CERN after LHC (LHC energy upgrades), including presentations of what we can expect from LHC and a potential Higgs-factory Status and very first focus on potential common or co-ordinated activities in the coming years (2013- 2017) ENERGY FRONTIER PROJECTS AT CERN AFTER LHC – THE CONTEXT OF THE CLIC ACTIVITIES Open Session during the CLIC workshop end January: Common session with main other alternatives for energy frontier projects at CERN after LHC (LHC energy upgrades), including presentations of what we can expect from LHC and a potential Higgs-factory Status and very first focus on potential common or co-ordinated activities in the coming years (2013- 2017)

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15. 15 2-4 pages by end March: Philippe, Daniel and Steinar (note independent but coordinated paper by Det&Phys colleagues. Will refer/link extensively to CDR results and reports. Daniel will present CLIC at the MIT workshop in April

16. CLIC ski-day - Friday 15.3