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Large Hadron ColliderLarge Hadron Colliderand ATLAS in Canada and ATLAS in Canada
First beam circulationFirst beam circulation10 September 200810 September 2008
Rob McPhersonRob McPhersonCanadian Institute of Particle PhysicsCanadian Institute of Particle Physics
and the University of Victoriaand the University of VictoriaSpokesperson & NSERC PI of ATLAS-CanadaSpokesperson & NSERC PI of ATLAS-Canada
http://www.atlas-canada.ca/
The Big Picture The Big Picture
Time- universe cooling- energy density decreasing
t = now
t = 0
Accelerators- probe higher energy earlier time, small distances- Last decades: elect. + weak unification
-what’s next? LHC, proton collisions at 14 TeVBreakthrough in understanding …
What lies there?What lies there? Maybe the Higgs Boson, the missing
link that gives mass to particles? But what is the Higgs (mechanism)?
What lies there?What lies there? Maybe the Higgs Boson, the missing
link that gives mass to particles? But what is the Higgs (mechanism)?
What lies there?What lies there? Maybe the Higgs Boson, the missing
link that gives mass to particles? But what is the Higgs (mechanism)?
Maybe the Higgs Boson, the missing link that gives mass to particles?
But what is the Higgs (mechanism)?
What lies there?What lies there?
What lies there?What lies there? Maybe the Higgs Boson, the missing
link that gives mass to particles? But what is the Higgs (mechanism)?
Beyond the Higgs? SUSY, Extra Dim. …Beyond the Higgs? SUSY, Extra Dim. …
H
{ }
BW1 W2 W3
e e( )
( )( )u d( )
c s
t b
( )( )
{ W Z }
EWSB L
L
MO
RE
? t b
Z
Fine
Tuning
CO
MP
OS
ITE
?
q*
l**
LQ
h H A H
2HD
M
Higgs triplets, little Higgs
e e( )
( )( )u d( )
c s
t b
( )( )
W Z
h H H
~
~
~~
~ ~
~
~
~~
~~
~
~~
~
~
~
SUSY
TechniColour
Extra Dimensions
Low Scale Gravity
Non Commutative Geometry
SUSY mSUGRAGMSBAMSB(RPV ?)
LHC compared to Cosmic RaysLHC compared to Cosmic Rays Proton collisions at 14 TeV cosmic ray of
100 PeV hitting atmosphere LHC will be first
facility to precisely probe scales of high-energy cosmic rays Nature does this
experiment for us every day, but we do not have precise accelerator and detector in place to observe the interactions with high statistics
The ATLAS DetectorThe ATLAS DetectorLength ~45 mRadius ~12 m
Mass ~7000 tonnes
Canada and LHC/ATLASCanada and LHC/ATLAS Essential contributions to the construction of the
accelerators in the LHC chain TRIUMF
Responsibility for critical parts of the ATLAS experiment design and construction Core ATLAS detector construction group was Alberta, Carleton,
Toronto, TRIUMF, Victoria
High-level trigger system Alberta, McGill, Montreal, Victoria
Tier 1 computing facility SFU, TRIUMF
Tier 2 analysis facilities Alberta, McGill, SFU, Toronto, Victoria
And soon: physics
Canadian Accelerator ContributionsCanadian Accelerator Contributions TRIUMF made key contributions to LHC accelerator
About $40M in total Small part of the accelerator, but critical for the LHC successSmall part of the accelerator, but critical for the LHC success
Led by then Director, Alan Astbury (UVic), and Engineering Division Chief, Ewart Led by then Director, Alan Astbury (UVic), and Engineering Division Chief, Ewart BlackmoreBlackmore
Upgrades to injection system Power supplies for injection “kickers” (Mike Barnes) Collimation and beam cleaning in high radiation environment
ATLAS-Canada: ~ 4 % of ATLASATLAS-Canada: ~ 4 % of ATLAS
AlbertaAlbertaCarletonCarletonMcGillMcGillMontréalMontréalReginaReginaSFUSFUTorontoTorontoTRIUMFTRIUMFUBCUBCVictoriaVictoriaYorkYork
Founded 1992: Michel Lefebvre, UVicFounded 1992: Michel Lefebvre, UVicSpokesperson (94-07): Bob Orr, UofTSpokesperson (94-07): Bob Orr, UofTSpokesperson (2007-): Rob McPherson, UVic/IPPSpokesperson (2007-): Rob McPherson, UVic/IPPDeputy: Doug Gingrich, Alta/TRIUMFDeputy: Doug Gingrich, Alta/TRIUMFPhysics coord: Isabel Trigger, TRIUMFPhysics coord: Isabel Trigger, TRIUMFComputing coord: Mike Vetterli, SFU/TRIUMFComputing coord: Mike Vetterli, SFU/TRIUMF
42 University/Lab. Faculty (35 FTE), ~ 150 people, including 42 University/Lab. Faculty (35 FTE), ~ 150 people, including Engineers, Technicians, StudentsEngineers, Technicians, Students
Includes 5 IPP Research ScientistsIncludes 5 IPP Research Scientists
Educational RoleEducational Role~ several UG Summer Students each year~ several UG Summer Students each year60+ Graduate Students (growing quickly)60+ Graduate Students (growing quickly)
23 Post Docs23 Post DocsManagement roles: Chris Oram, TRIUMF, ATLAS board chairManagement roles: Chris Oram, TRIUMF, ATLAS board chair
4 NSERC Funded Construction Projects4 NSERC Funded Construction Projects
Construction completed in 2004Construction completed in 2004End cap Hadronic CalorimeterEnd cap Hadronic CalorimeterForward Hadronic CalorimeterForward Hadronic CalorimeterFront-End-Board ElectronicsFront-End-Board ElectronicsEndcap Signal Cryogenics FeedthroughsEndcap Signal Cryogenics Feedthroughs
Commissioning On-GoingCommissioning On-Going
Ongoing/Future ActivitiesOngoing/Future Activities Calorimeter CalibrationCalorimeter Calibration
High Level Trigger FarmsHigh Level Trigger Farms TRT Electronics TRT Electronics Beam Condition MonitorsBeam Condition Monitors Computing / Tier 1 & 2Computing / Tier 1 & 2 Physics !!Physics !!
The LHC Computing GridThe LHC Computing Grid One massive computing
centre with 100’s of physicists analyzing Petabytes of data per year not possible
Farm out data around the world using GRID
10 Tier 1 for raw processing
1 in Canada: TRIUMF/SFU
PI: Mike Vetterli Manager: Reda Tafirout
40-50 Tier 2 for analysis 5 sites in Canada: West:
UVic,SFU,Alta East: Toronto,McGill
CanadaCanada
UVicUVic
SFUSFU
UAltaUAlta
UofTUofT
McGillMcGill
Current W-LCG Chair: M.Vetterli, SFU
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