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General news…. Monthly meeting, CLIC physics and detector study, 24/9/2012 Lucie Linssen. Outline. Links to our recent documents CLIC energy staging in CDR Volume 3 CLIC strategy and objectives (from CDR Volume 3) Re- baselining of CLIC energy stages
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General news… Monthly meeting, CLIC physics and detector study, 24/9/2012 Lucie Linssen L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Outline • Links to our recent documents • CLIC energy staging in CDR Volume 3 • CLIC strategy and objectives (from CDR Volume 3) • Re-baselining of CLIC energy stages • New activities in CLIC physics and detector study • Status of LCD Notes • Status future LC and CLIC physics/detector organisation L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Links to our recent documents… CLIC CDR (#3), The CLIC Programme: towards a staged e+e- Linear Collider exploring the Terascale, ANL-HEP-TR-12-51, CERN-2012-005, KEK Report 2012-2, MPP-2012-115 http://arxiv.org/abs/1209.2543 (the order for printed copies was placed on 13/9; be patient) CLIC e+e- Linear Collider Studies, CLIC input to the update process of the European Strategy for Particle Physics: arXiv:1208.1402 The Physics Case for an e+e- Linear Collider, LC input to the update process of the European Strategy for Particle Physics, ILC ESD-2012/4, CLIC-Note-949 L. Linssen, CLIC physics and detector, Monthly 24/9/2012
CLIC energy staging • Advice: The motivation and implementation of energy staging (construction/operation) is quite new for CLIC => => read CDR #3, or CLIC input to the European strategy • Making optimal use of the capacities (luminosity) of CLIC, this is best studied with a collider built in a few successive energy stages. • At each energy stage, the centre-of-mass energy can be tuned down • by a factor ~3 with • limited luminosity loss • (e.g. for threshold scans). • The optimal choice of the actual energy stages will depend on the physics scenario, will be driven by 8 TeV + 14 TeV LHC results. • The scenarios in CDR #3 are therefore “just examples”, worked out illustrations. L. Linssen, CLIC physics and detector, Monthly 24/9/2012
CLIC layout at 3 TeV L. Linssen, CLIC physics and detector, Monthly 24/9/2012
CLIC layout at 500 GeV (scenario A) L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Staged approach, scenario A+B 500 GeV A 1.4 TeV 3 TeV 500 GeV B 1.5 TeV 3 TeV L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Parameters, scenario A L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Parameters, scenario B L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Integrated luminosity Based on 200 days/year at 50% efficiency (accelerator + data taking combined) Target figures: >600 fb-1 at first stage, 1.5 ab-1 at second stage, 2 ab-1 at third stage L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Power Various options for improvement have been identified L. Linssen, CLIC physics and detector, Monthly 24/9/2012
CLIC strategy and objectives L. Linssen, CLIC physics and detector, Monthly 24/9/2012
more remarks on energy staging… • For the CDR, the CLIC study always focused on the 3 TeV machine • Design was optimised for 3 TeV • The ultimate 3 TeV machine imposes constraints on the lower energy stages • Once the desired energy stages are known => design can be optimised(with impact on e.g. cost) • Re-baselining CLIC in the next project phase (2012-2016): • First stage likely to be 375 GeV (Higgs/top) • With drive beam • Klystron-based • Later stages => needs more physics input from LHC • Note: a klystron-basedinitial stage ~375 GeV could be more cost-effective. • Technology readiness of klystron option => to be checked • An initial stage at with klystrons at ~375 GeV could bring the CLIC cm energy with 1 drive beam to 1875 GeV. L. Linssen, CLIC physics and detector, Monthly 24/9/2012
“new” activities • While the CDR Vol.3 benchmark studies are coming to an end: • A new round of benchmark studies being initiated through the analysis WG. • First ideas were posted here: • http://indico.cern.ch/conferenceDisplay.py?confId=191164 • “Potential volunteers”: JJ,. Blaising C. GrefeT. Lastovicka J. Marshall, A. Munnich(complement Higgs ττ), Aidan Robson (Glasgow), P. Roloff, Eva Sicking, F. Simon + MPI team, J. Strube, Nigel Watson (Birmingham) • Please contact the conveners: • If your name is on the list, while it shouldn’t be there • If you you want to be added to the list • Cost-effective ECAL study • Simulation + hardware study • … thinking of: • Reducing number of ECAL layers • Understand the need for granularity in 1st / 2nd part of ECAL • Understand scintillator-tile option for 2nd part of ECAL • Interest for this study from: Cambridge, CERN, (DESY), MPI L. Linssen, CLIC physics and detector, Monthly 24/9/2012
2012 LCD notes, released L. Linssen, CLIC physics and detector, Monthly 24/9/2012
2012 LCD notes, pending Help with reviewing is always welcome ! L. Linssen, CLIC physics and detector, Monthly 24/9/2012
2011 LCD notes, pending in PhD thesis L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Future LC organisation From the minutes of the ILCSC meeting in Melbourne: “… The Associate Director for Physics and Detectors would look after the detector collaborations, and proposals for this position could come from the community, although the final choice would be by management. ILCSC felt that Evans should work with the detector community to achieve a consensus on the Associate Director candidate and on his/her exact role… “ Feedback we received from Lyn Evans: Lyn will consult with the community to nominate a consensus candidate to the RD position (by the time of LCWS12?). The appointed RD with then initiate the process to define a suitable organisational structure. L. Linssen, CLIC physics and detector, Monthly 24/9/2012
As the CDR studies are now finished… It’s a good time to give seminars about CLIC For this, we need YOU ! L. Linssen, CLIC physics and detector, Monthly 24/9/2012
SPARE SLIDES L. Linssen, CLIC physics and detector, Monthly 24/9/2012
physics/detector objectives: 2012-2016 • Implementation study and technical demonstration phase • Physics studies, following up on 8 TeV and 14 TeV LHC results • Exploration of SM physics (incl. Higgs, top) and reach for new physics • Adaptation of strategy for CLIC energy staging and luminosity levels • Detector optimisation • General detector optimisation+ simulation studies in close relation with detector R&D • R&D:Implementation examples demonstrating the required functionality • Vertex detector • Demonstration module, meeting requirements of high precision, 10 ns time stamp and ultra-low mass • Main tracker • Demonstration modules, including manageable occupancies in the event reconstruction • Calorimeters • Demonstration modules, technological prototypes + addressing control of cost • Electronics • Demonstrators, in particular in view of power pulsing • Magnet systems • Demonstrators of conductor technology, safety systems and moveable service lines • Engineering and detector integration • Engineering design and detector integration harmonized with hardware R&D demonstrators Lots of work in common with ILC ! Challenging detector technologies, considered feasible in a 5-year R&D program L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Motivation for energy staging (2) Higgs physics Available luminosity increases with √s ! L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Motivation for energy staging (3) Stage 1: ~500 (350) GeV => Higgs and top physics Stage 2: ~1.5 TeV => ttH, ννHH + New Physics (lower mass scale) Stage 3: ~3 TeV => New Physics (higher mass scale) SUSY models (I, II, III) used to illustrate physics (precision) capabilities L. Linssen, CLIC physics and detector, Monthly 24/9/2012
CLIC accelerator cost 500 GeV, unit CHF, excl. labour Labour derived from LHC example (~1.9 FTE.year/MCHF) => 14100 FTE.years (scen. B) Incremental cost (scenario B, 500 GeV => 1.5 TeV): 4 MCHF/GeV Room for improvement (~10%) with current design, + additional possibilities from optimisation of energy staging L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Results of Higgs benchmark studies Details will be presented at LCWS12 ! ‘12 ‘12 ‘12 ‘12 <= study still ongoing ‘12 L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Results of top benchmark studies left right plot ‘12 L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Results of SUSY benchmarks, 1.4 TeV all results with L => 1.5 ab-1 CLIC CDR Vol. 3 ‘12 ‘12 ‘12 L. Linssen, CLIC physics and detector, Monthly 24/9/2012
Results of SUSY benchmarks, 3 TeV all results with L => 2 ab-1 CLIC CDR Vol. 2 L. Linssen, CLIC physics and detector, Monthly 24/9/2012