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Baseline planning

Baseline planning. LS 1. LS 2. LS 3. - from now to 2020 ~60 months of p-p running - 4 weeks of Heavy Ion Collisions every year (8 runs) Annual year-end shutdown for ~10 weeks 15 mo shutdown in 2012/2013 -> LHC to nominal energy 15 mo shutdown in 2016 -> Phase 1 upgrade

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Baseline planning

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  1. Baseline planning LS 1 LS 2 LS 3 • - from now to 2020 ~60 months of p-p running • - 4 weeks of Heavy Ion Collisions every year (8 runs) • Annual year-end shutdown for ~10 weeks • 15 mo shutdown in 2012/2013 -> LHC to nominal energy • 15 mo shutdown in 2016 -> Phase 1 upgrade • 19+ mo shutdown in 2020(+x) -> HL-LHC upgrade

  2. AB guess at most probable outcome LS 1 Extendedmaintenance 2024 LS 2 LS 3 Extendedmaintenance

  3. Insertable B-Layer (IBL) Current IST support IBL Staves Beam Pipe 45mm ID IBL Inner Support Tube (IST) 3

  4. New Pixel detector overview 4 J. Nash CMS Upgrades TP 21 February 2011

  5. New beam pipe for pixel upgrade CMS Technical Coordination requested in Nov 2010 a CAD design study for a beam pipe diameter that still would be compatible in installation and required clearances with 12 face innermost barrel layer. • BPIX design study finished in Jan. 2011 • Considered: • cabling clearances • inner shield imperfections • beam displacements < 2 mm • minimal overlaps of sensor areas • Conclusion: • mean 1st layer Si- radius = 29.8 mm • need 2 mm clearance to beam pipe • need adjustable closing mechanism • Beam pipe diameter (outer) = 45 mm !

  6. Improved B tagging 6 J. Nash CMS Upgrades TP 21 February 2011

  7. Baseline: Long Shutdown 1 Timeframe Est Integ Tasks lumi /fb-1 Items carried over from year-end stop 2011-12 (if no opening) 2012-14 1-10 Yoke Endcap disk 4 construction at +z and –z ends in situ. 4’th muon endcap stations +z and –z (CSC & RPC) (-z only if 2012) 1’st endcap muon station readout granularity restoration +z and -zBeampipe region shielding + forward region opening under vacuum -forward systems CASTOR, ZDC, reinstallable for p-p HO, HF & CASTOR calorimeters phototransducer change Beampipe : bakeout if required based on NEG tests ( ~2 mo more) --> possible installation of 45mm central beampipe --> option to remove all pipe at start of shutdown (time vs logistic simplification) Beam Scintillation Counter upgrade/replacement. Barrel – endcap seal revision for colder Tracker operations + very many infra & common systems consolidations. After which CMS should be ready for 13-14 TeV, 100fb-1 and 1-2 x 1034cm-2s-1

  8. What about the 2’nd Long Shutdown? Programme likely to be strongly affected by the decision to postpone 1’st Long Shutdown Recall 2016 was a good compromise between different interests requesting 2015 & 2017. LS 2 start date and duration to be re-considered based on: - Physics: achieved pre LS 1, and targeted between LS1 and LS2 - Actual start/duration of LS 1: eg Nov 2012-Feb 2014 or Dec 2012-June 2014? (Presumably not sensible to have < 2 full running years between LS1 and LS 2) - Status/capabilities of LHC & Experiments on completion of LS1& pre LS2 - Credibleready-date of various upgrades wrt shutdown timing. - Performance consolidation/improvement/risk reduction expected from LS 2. Change brings stress but also provokes the imagination! Considering ways to avoid delays to (already delayed) work on: - HCAL consolidation (HPD replacement & depth segmentation), ready 2015. - Installing low-mass 4-layer pixel tracker, (also ready 2015) on 45mm beampipe. --> possible installation and bakeout of new 45mm beampipe in 2013-14 --> pixel in year-end technical stop 2015-16 or 2016-17 (3mo min)

  9. CMS Technical Organisation: Overviewfor Operation, Maintenance & Upgrade Projects CMS management, CERN management Technical Coordination A.H.Ball (TC), W.Zeuner (DTC) Run Coordination A. Ryd M.L. Chamizo Upgrade Coordinator J. Nash TC office D. Hudson LHC s/d coord TIOC Safety in CMS facilities C.Schaefer(GLIMOS) S.Bally (RSO) SC, BFSP PH-Dept Hd. Engineering and Electronic Integration, Gaddi/Hansen CMX Group leader P. Siegrist [M. Arnaud (SafCo)] CMS Subdetector Coordinators P5 expt area management M.Gastal D. Hay Engineering & Electronics Teams H.Gerwig, M.Hansen Magnet, Infrastructure & Common Systems Teams B. Cure A. Gaddi, CERN-CMS Detector Technical Teams D. Abbaneo PH-liaison P.Petagna Field Coord Tech Coord TK N. Bacchetta DT A. Benvenuti ECAL A.Singowski W.Funk CSC A. Lanaro BE, EN,GS,PH,TE technical groups CMS Infra Task Groups PH-DT support teams & facilities RPC S. Buontempo HCAL P. de Barbaro Alignment T. Rodrigo Machine Interface Beam/Lumi monitors N. Bacchetta R. Hall-Wilton Contractors FSUs LHC technical operation

  10. Upgrade Project Tech Coord Forward muon Project coord Pix/BP/PLT Project coord HCAL photodt/ront end Project Coord h> 3 region Project Coord TC TC YE4 CSC RPC 904 Infra Bpix Fpix PLT Infra BP HO HB/HE HF CAST Infra CAL TRAK BRM BP TAS/ SHIELD VFWD Infra

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