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

LHC: ExperimentsLHC: Experiments

The ATLAS DetectorThe ATLAS DetectorLength ~45 mRadius ~12 m

Mass ~7000 tonnes

10 Sept 08, 110 Sept 08, 1stst Beam, 1 Beam, 1stst Event Event

10 Sept 08, 110 Sept 08, 1stst Beam, 2nd Event Beam, 2nd Event

LAr Calo Pulses with BeamLAr Calo Pulses with Beam

22ndnd Beam, 1 Beam, 1stst Event Event

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

Today: 10 September 2008Today: 10 September 2008

First acceleration of beams around the complete LHC

Momentous scientific event On the threshold of great scientific discovery