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Japanese Commitment to the LHC experiments
Katsuo Tokushuku (KEK)May 17, 2008
The KEK-CNRS/IN2P3-CEA/DSM/DAPNIA Collaboration Meeting at CRNS
TOTEM
Circumference : 27km1232 superconducting dipoles
with magnetic field B=8.3 T
Two General purpose Detectors: ATLAS
and CMS
pp collider
√s=14TeVDesign L=1034cm-2s-1 (100fb-1/year)
1033 for the early stage
LHC (Large Hadron Collider)
17/May/2008 2
LHCf
ALICE
LHC Physics
17/May/2008 3
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
SUSY
Or, Extra-D,Technicolor, Little Higgs,,,
17/May/2008 4
1984.3
ECFA-CERN Lausanne Workshop on LHC1988(?)
Recommendation by “Rubbia”
Committee for future plan of CERN1989
Construction of SSC started.1990.10
ECFA LHC Workshop at Aachen1992.10
Letter of Intents by ATLAS and CMS1993.10
Termination of SSC Project1994.12
Technical Proposals by ATLAS and CMS1994.12
CERN Council approved LHC in 2 steps.1995.5
Monbusho
announced 1st contribution of
5 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.
History of LHC Project
Large Japanese contribution!
17/May/2008 5
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.
CERN Director General Chris Lewellyn
Smith達磨(片目!)Delegation of Japan at CERN Council
Dhama
dollMinister
Kaoru Yosano
17/May/2008 6
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.
FermilabKEKCollision point
Inner Triplet Quadrupoles Full current achieved on 24/April/2008
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
ATLAS Collaboration(Status October 2007)
37 Countries167 Institutions
2912 Scientific Authors total(<- number based on the first ATLAS paper
in Dec 2007) ATLAS-Japan
15 Institutes92 Scientific authors
17/May/2008 8
ATLAS Detector: construction and commissioning
Length : ~ 46 m Radius : ~ 12 m Weight : ~ 7000 tons~ 108 electronic channels~ 3000 km of cables
•• Tracking (|η|<2.5, B(solenoid)=2T)
:--
Si pixels and strips--
Transition Radiation Detector (e/π
separation)• Calorimetry
(|η|<5)
:--
EM : Pb-LAr--
HAD: Fe/scintillator
(central), Cu/W-LAr
(fwd)• Muon Spectrometer (|η|<2.7) :
air-core toroids
with muon chambers
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%)
17/May/2008
First working ATLAS component Arrived at CERN (2001.9)
ATLAS Central Solenoid : 100% responsibility by KEK
A happy marriage with liquid Argon Calorimeter !(2004.2)
Full current test in situ(2006.8)
7730 A
2.00 T
7980 A
9
17/May/2008 10
TGC: Thin Gap Chambers (TGC) for μ
triggering
3600 TGC chambers320,000 channelsTotal area ~2,000 m2
Joint Constructionby
Israel, JapanChina
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.
Big wheel in the pit
KEK and Kobe
72 sectors assembled at CERN B180
transportation17/May/2008
17/May/2008 12
All Big-wheels were installed in ATLAS pit (2007.9)
Mass production of trigger electronics (KEK).ASICs
and modules were designed by ATLAS-Japan
13
ATLAS Silicon Micro-strip Detector (SCT)
4 sensors/module
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)
Hamamatsu
Japan Mektron
SeikoPrecision
17/May/2008
17/May/2008 14
WLCG Resource Pledged in 2007:
CPU: 1000kSI2k
Disk: 200TB
LCG Tier2 Center for ATLAS is operational since 2005 at International Center for Elementary Particle Physics (ICEPP), the University of Tokyo
Contribution for Computing TOKYO-LCG2
SINET(New York - Tokyo)GEANT(Lyon – New York)CERN
Tier0
IN2P3-CC Tier 1
ICEPP, Univ. Tokyo
Data Flow at ATLAS M6
ATLAS Detector
17/May/2008 15
File Transfer from Lyon to Tokyo at M6
10 minutes average of FTS
130MB/s!
17/May/2008 16
17/May/2008 17
Physics preparationGrowing 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 γγunder the CNRS/IN2P3 programme.
(Now Taka Kondo is at LAPP!)
SLHC: High luminosity Challenge
17/May/2008 18
10331033
10351035
1032 cm-2 s-1 1032 cm-2 s-1
10341034
CMSCMS
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
(1)
Development of the Nb3
Al conductor for higher field quadrupole
magnets for IR (by A. Yamamoto, K.
Tsuchiya in collab. with US, CERN).(2) Collaboration on Crab cavitities
(by K. Oide)
(3)
New Rad-hard silicon microstrip
sensor for ATLAS inner tracker (by Y. Unno ………).
(4)
New muon chamber readout TDC chips (by Y. Arai) and TGC readout (by O. Sasaki).
17/May/2008
17/May/2008 20
R&D for SLHC (SCT)
LHC(2x1014)→SLHC(1x1015)4" FZ →6" FZ (or MCZ)Irradiations have found
very different Vdep evolution
4" FZ
6" FZ
Proton irradiations in Japan at CYRIC, Tohoku U.
SLHC module mock-up: module (centre), cooling plates (2 sides)
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 PHOSALICE-Tier2 center
University of Tokyo, CNSlepton measurements with TRD
University of Tsukubahadron and lepton measurementsin connection with a MEXT special program.
Another Japanese Commitment to LHCAnother Japanese Commitment to LHCThe ALICE Experiment30 countries, 97 institutions, ~1,015 members as of Jan.2007
PHOS
TRD
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
17/May/2008 21
22
Other items with CERN
(1)
Sending KEK experts for LHC accelerator commissioning (K. Oide….). (2) CERN-Japan Fellows: 2 fellows in ATLAS,
1 in Accerelator, 1 in Theory(a new fellow under the selection process)
(3)
Participation of young Japanese students in the CERN Summer School since 2003.5 students in this summer
17/May/2008
17/May/2008 23
SummaryThe 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.