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Japanese Commitment to the LHC experiments

Japanese Commitment to the LHC experiments. Katsuo Tokushuku (KEK) May 17, 2008 The KEK-CNRS/IN2P3-CEA/DSM/DAPNIA Collaboration Meeting at CRNS. LHC (Large Hadron Collider). Circumference : 27km 1232 superconducting dipoles with magnetic field B=8.3 T.

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Japanese Commitment to the LHC experiments

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  1. Japanese Commitment to the LHC experiments Katsuo Tokushuku (KEK) May 17, 2008 The KEK-CNRS/IN2P3-CEA/DSM/DAPNIA Collaboration Meeting at CRNS

  2. LHC (Large Hadron Collider) Circumference : 27km 1232 superconducting dipoles with magnetic field B=8.3 T pp collider √s=14TeV Design L=1034cm-2s-1 (100fb-1/year) 1033 for the early stage TOTEM ALICE LHCf Two General purpose Detectors: ATLAS and CMS

  3. LHC Physics • The aim of LHC experiments: 2 major questions : • Whether the standard model is correct? <- Higgs mechanism • Why the standard model works so well? <- structure of BSM Mass reach: With L=1033 ~1300 GeV in “one week” ~1800 GeV in “one month” Higgs Or, Extra-D, Technicolor, Little Higgs,,, SUSY

  4. History of LHC Project 1984.3 ECFA-CERN Lausanne Workshop on LHC 1988(?) Recommendation by “Rubbia” Committee for future plan of CERN 1989 Construction of SSC started. 1990.10 ECFA LHC Workshop at Aachen 1992.10 Letter of Intents by ATLAS and CMS 1993.10 Termination of SSC Project 1994.12 Technical Proposals by ATLAS and CMS 1994.12 CERN Council approved LHC in 2 steps. 1995.5 Monbusho announced 1st contribution of5 BYen (65 MCHF). 1996 India ($12.5M), Russia (67MCHF incl. detectors), Canada (v$ 30M) 1996.12 Monbusho announced 2nd contribution of 3.85 BYen (44 MCHF). 1996.12 CERN Council approved LHC in 1-step to complete LHC in 2005. ATLAS and CMS proposals were approved. 1997.12 USA announced contribution of $200M (accelerator) + $331M(detectors). 1998.5 Monbusho announced 3rd contribution of 5 BYen (56 MCHF). 2000.11 LEP termination. 2002.6 Budget crisis -> LHC completion changed to year 2007. 2007.10 Council approved LHC startup scenario in summer 2008. Large Japanese contribution!

  5. Dhama doll Minister Kaoru Yosano CERN Director General Chris Lewellyn Smith Delegation of Japan at CERN Council 達磨（片目！） June 23, 1995 : Minister of Monbusho, Kaoru Yosano, announced a contribution of 50 Oku-yen to help finance the construction of the LHC at the CERN Council meeting. Japan was elected a CERN Observer State. The 1st major step of the globalization of the LHC Project.

  6. Full current achieved on 24/April/2008 Inner Triplet Quadrupoles Near the interaction points, triplet quadrupole magnets focus the beam. Two types of superconducting magnets are separately developed and manufactured at KEK and Fermilab. Both magnets were assembled with common cryostat at Fermilab and then shipped to CERN. Fermilab KEK Collision point

  7. ATLAS Collaboration (Status October 2007) 37 Countries 167 Institutions 2912 Scientific Authors total (<- number based on the first ATLAS paper in Dec 2007) ATLAS-Japan 15 Institutes 92 Scientific authors Albany, Alberta, NIKHEF Amsterdam, Ankara, LAPP Annecy, Argonne NL, Arizona, UT Arlington, Athens, NTU Athens, Baku, IFAE Barcelona, Belgrade, Bergen, Berkeley LBL and UC, HU Berlin, Bern, Birmingham, Bogota, Bologna, Bonn, Boston, Brandeis, Bratislava/SAS Kosice, Brookhaven NL, Buenos Aires, Bucharest, Cambridge, Carleton, Casablanca/Rabat, CERN, Chinese Cluster, Chicago, Chile, Clermont-Ferrand, Columbia, NBI Copenhagen, Cosenza, AGH UST Cracow, IFJ PAN Cracow, DESY, Dortmund, TU Dresden, JINR Dubna, Duke, Frascati, Freiburg, Geneva, Genoa, Giessen, Glasgow, Göttingen,LPSC Grenoble, Technion Haifa, Hampton, Harvard, Heidelberg, Hiroshima, Hiroshima IT, Indiana, Innsbruck, Iowa SU, Irvine UC, Istanbul Bogazici, KEK, Kobe, Kyoto, Kyoto UE, Lancaster, UN La Plata, Lecce, Lisbon LIP, Liverpool, Ljubljana, QMW London, RHBNC London, UC London, Lund, UA Madrid, Mainz, Manchester, Mannheim, CPPM Marseille, Massachusetts, MIT, Melbourne, Michigan, Michigan SU, Milano, Minsk NAS, Minsk NCPHEP, Montreal, McGill Montreal, FIAN Moscow, ITEP Moscow, MEPhI Moscow, MSU Moscow, Munich LMU, MPI Munich, Nagasaki IAS, Nagoya, Naples, New Mexico, New York, Nijmegen, BINP Novosibirsk, Ohio SU, Okayama, Oklahoma, Oklahoma SU, Oregon, LAL Orsay, Osaka, Oslo, Oxford, Paris VI and VII, Pavia, Pennsylvania, Pisa, Pittsburgh, CAS Prague, CU Prague, TU Prague, IHEP Protvino, Regina, Ritsumeikan, UFRJ Rio de Janeiro, Rome I, Rome II, Rome III, Rutherford Appleton Laboratory, DAPNIA Saclay, Santa Cruz UC, Sheffield, Shinshu, Siegen, Simon Fraser Burnaby, SLAC, Southern Methodist Dallas, NPI Petersburg, Stockholm, KTH Stockholm, Stony Brook, Sydney, AS Taipei, Tbilisi, Tel Aviv, Thessaloniki, Tokyo ICEPP, Tokyo MU, Toronto, TRIUMF, Tsukuba, Tufts, Udine/ICTP, Uppsala, Urbana UI, Valencia, UBC Vancouver, Victoria, Washington, Weizmann Rehovot, FH Wiener Neustadt, Wisconsin, Wuppertal, Yale, Yerevan

  8. ATLAS Detector: construction and commissioning • Superconducting Central Solenoid (Japanese contribution:100%) • Time-to-digital conversion chips for muon drift tubes (100%) • End-cap muon triggering system (TGC) (~50%) • Silicon microstrip tracking system (SCT) (~20%) • Tracking (||<2.5, B(solenoid)=2T): • -- Si pixels and strips • -- Transition Radiation Detector (e/ separation) • Calorimetry (||<5): • -- EM : Pb-LAr • -- HAD: Fe/scintillator (central), Cu/W-LAr (fwd) • Muon Spectrometer (||<2.7) : • air-core toroids with muon chambers Length : ~ 46 m Radius : ~ 12 m Weight : ~ 7000 tons ~ 108 electronic channels ~ 3000 km of cables

  9. ATLAS Central Solenoid : 100% responsibility by KEK First working ATLAS component Arrived at CERN （2001.9） A happy marriage with liquid Argon Calorimeter !（2004.2） 7980 A 7730 A2.00 T Full current test in situ（2006.8）

  10. TGC: Thin Gap Chambers (TGC) for m triggering 3600 TGC chambers 320,000 channels Total area ~2,000 m2 Joint Construction by Israel, Japan China High energy muons penetrate calorimeters and be bent by magnetic field of toroid. TGC system measures the bend angle for Level-1 triggering. Japanese group is also working on the LVL2 muon trigger, now. Muon offline : French group

  11. Thin Gap Chambers (TGC) for muon endcap triggering Japan made 1200 TGC chambers out of 3600. Almost all electronics are design and constructed by Japan. KEK and Kobe 72 sectors assembled at CERN B180 Big wheel in the pit transportation

  12. Mass production of trigger electronics (KEK). ASICs and modules were designed by ATLAS-Japan All Big-wheels were installed in ATLAS pit (2007.9)

  13. ATLAS Silicon Micro-strip Detector (SCT) Hamamatsu Seiko Precision 4 sensors/module Japan Mektron KEK assembled 980 modules (40%) Module mounting at Oxford U. using robots made by KEK Excellent noise distribution obtained during SR1 cosmic-ray test Cosmic-ray tracks at SR1 (May 2006)

  14. Contribution for ComputingTOKYO-LCG2 LCG Tier2 Center for ATLAS is operational since 2005 at International Center for Elementary Particle Physics (ICEPP), the University of Tokyo WLCG Resource Pledged in 2007: CPU: 1000kSI2k Disk: 200TB

  15. Data Flow at ATLAS M6 ATLAS Detector ICEPP, Univ. Tokyo SINET(New York - Tokyo) GEANT(Lyon – New York) CERNTier0 IN2P3-CC Tier 1

  16. File Transfer from Lyon to Tokyo at M6 130MB/s! 10 minutes average of FTS

  17. Physics preparation • Growing contributions in ATLAS physics groups Shoji Asai (Tokyo) : SUSY convenor (2005-2006) Osamu Jinnouchi (KEK) : Monte Carlo Coordinator (2007-) Soshi Tsuno (KEK) : Higgs VBF group coordinator • Higher weights on Higgs and SUSY physics. But start contributing to the other physics, such as B-physics and proton structure. • Dr. Junji Tojo (KEK) is collaborating with LAPP group (led by Isabelle Wingerter-Seez) on ATLAS e/gamma performance and H  γγ under the CNRS/IN2P3 programme. (Now Taka Kondo is at LAPP!)

  18. 1032 cm-2 s-1 1033 1034 1035 CMS SLHC: High luminosity Challenge Peak luminosity: 10-15 1034 cm-2 s-1 : 400 inelastic collisions in a bunch (in 50ns bunch spacing mode) : we need new tracking system. (100~200MCHF project)

  19. R&Ds for LHC Upgrade • Development of the Nb3Sn conductor for higher field quadrupole magnets for IR (by A. Yamamoto, K. Tsuchiya in collab. with US, CERN). • Collaboration on Crab cavitities (by K. Oide) • New Rad-hard silicon microstrip sensor for ATLAS inner tracker (by Y. Unno ………). • New muon chamber readout TDC chips (by Y. Arai) and TGC readout (by O. Sasaki).

  20. 4" FZ 6" FZ R&D for SLHC (SCT) Proton irradiations in Japan at CYRIC, Tohoku U. LHC(2x1014)→SLHC(1x1015) 4" FZ →6" FZ (or MCZ) Irradiations have found very different Vdep evolution SLHC module mock-up: module (centre), cooling plates (2 sides)

  21. Another Japanese Commitment to LHC • Strong participation in heavy-ion physics at RHIC since its LOI. • 5-year Grant-in-Aid of ~3MCHF approved by MEXT for ALICE in 2006; PI=T. Sugitate (Hiroshima) • Present ALICE-Japan activities: • Hiroshima University • PHOS construction and • photon measurements with PHOS • ALICE-Tier2 center • University of Tokyo, CNS • lepton measurements with TRD • University of Tsukuba • hadron and lepton measurements • in connection with a MEXT special program. The ALICE Experiment 30 countries, 97 institutions, ~1,015 members as of Jan.2007 TRD PHOS ALICE Tier-2 at Hiroshima; possible link to French GRID • “JP-HIROSHIMA-WLCG” with EGEE /gLite3.0 /ALICE-VOBOX in preparation • Network B/W: MPLS 1Gbps on SINET3 in Japan • Regional support given: ASGC in Taiwan • Responsible person: Prof. Toru Sugitate, Hiroshima sugitate@hiroshima-u.ac.jp

  22. Other items with CERN • Sending KEK experts for LHC accelerator commissioning (K. Oide….). • CERN-Japan Fellows: 2 fellows in ATLAS, 1 in Accerelator, 1 in Theory (a new fellow under the selection process) • Participation of young Japanese students in the CERN Summer School since 2003. 5 students in this summer

  23. Summary • The Japanese group has been taking major roles in the ATLAS detector construction, for the components complementary to the French particiation (Solenoid, TGC, SCT, MDT front-end) • Physics contributions are growing. • R&D studies for LHC upgrade have already started. It is time to make a detailed plan.

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