W. Smith, August 2004 U. Wisconsin Task T - 1

Advances in Particle PhysicsAdvances in Particle PhysicsAdvances in Particle PhysicsAdvances in Particle Physics

2004 Nobel Prize!

W. Smith, August 2004 U. Wisconsin Task T - 2

The Physics FrontierThe Physics FrontierThe Physics FrontierThe Physics Frontier

Fundamental discoveries in particle physics remain in the forefront of science

Where is the next new place where these may be found?

The Large Hadron Collider at CERN at 14 TeV center of mass energy…the new frontier

W. Smith, August 2004 U. Wisconsin Task T - 3

Physics at LHCPhysics at LHCPhysics at LHCPhysics at LHC

• Extra dimensions• Composite quarks & leptons• …….?

W. Smith, August 2004 U. Wisconsin Task T - 4

LHC CollisionsLHC CollisionsLHC CollisionsLHC Collisions

W. Smith, August 2004 U. Wisconsin Task T - 5

CMS DetectorCMS DetectorCMS DetectorCMS Detector

W. Smith, August 2004 U. Wisconsin Task T - 6

Wisconsin on CMS at LHCWisconsin on CMS at LHCWisconsin on CMS at LHCWisconsin on CMS at LHC

Personnel:• Professors D. Carlsmith, S. Dasu, D. Reeder, W. Smith

• Senior Scientist R. Loveless

• Senior Electronics Engineer T. Gorski

• Assistant Scientists P. Chumney, M. Grothe, A. Lanaro

• Postdoc Y. Baek

• Engineer M. Jaworski, Technician R. Fobes

• Grad Students V. Puttabuddhi (Engineering), C. Hogg (Physics)

• PSL Engineers F. Feyzi, J. Hoffman, P. Robl, D. Wahl, D. Wenman

• PSL Draft/Tech: G. Gregerson, D. Grim, J. Pippin, R. Smith

Activities:• Calorimeter Trigger (W. Smith, CMS Trigger Project Manager)

• Endcap Muon System (R. Loveless, CMS Endcap Muon Manager)

• Computing/Physics (S. Dasu, US CMS Computing Adv. Bd, Chair)

W. Smith, August 2004 U. Wisconsin Task T - 7

Trigger & DAQ at the LHCTrigger & DAQ at the LHCTrigger & DAQ at the LHCTrigger & DAQ at the LHC

W. Smith, August 2004 U. Wisconsin Task T - 8

Detector Frontend

Computing Services

ReadoutSystems

FilterSystems

Event Manager Builder Networks

Level-1Trigger

RunControl

CMS Trigger & DAQ SystemsCMS Trigger & DAQ SystemsCMS Trigger & DAQ SystemsCMS Trigger & DAQ Systems

Level-1 Trigger Requirements:• Input: 109 events/sec at 40 MHz at full L = 1034

• Output: 100 kHz (50 kHz for initial running)• Latency: 3 sec for collection, decision, propagation• Output direct to computer filter farm (no physical level-2)

W. Smith, August 2004 U. Wisconsin Task T - 9

CMS Level-1 TriggerCMS Level-1 TriggerW. Smith, Project ManagerW. Smith, Project Manager

CMS Level-1 TriggerCMS Level-1 TriggerW. Smith, Project ManagerW. Smith, Project Manager

Wisconsinfullyresponsible

US CMS Trigger

US CMSfully responsible

US CMS partially responsible

UNIQUE:All system present trigger objects w/location, ET, quality -- topological triggers possible

Calorimeters Muon Detectors

W. Smith, August 2004 U. Wisconsin Task T - 10

Calorimeter Trigger CrateCalorimeter Trigger CrateCalorimeter Trigger CrateCalorimeter Trigger CrateOne of 18 160 MHz systems processing 0.4 Tbits/s.

Rear: Receiver Cards Front: Electron, Jet, Clock Cards

W. Smith, August 2004 U. Wisconsin Task T - 11

Calorimeter Trigger Receiver Mezzanine Calorimeter Trigger Receiver Mezzanine Card (RMC) and Receiver Card (RC)Card (RMC) and Receiver Card (RC)

Calorimeter Trigger Receiver Mezzanine Calorimeter Trigger Receiver Mezzanine Card (RMC) and Receiver Card (RC)Card (RMC) and Receiver Card (RC)

Front

DC-DC

Adder

mezzlink

cards

BSCANASICs

PHASEASICs

MLUs

Back

Receives 64 Calorimeter energy sums every 25 ns using 8 Vitesse 1.2 Gbaud links on Receiver Mezzanine link Cards, sends to Jet/Summary Card

Bar Code

Tech’n. R. Fobes (l.) & Eng’r. T. Gorski (r.) test links:

W. Smith, August 2004 U. Wisconsin Task T - 12

Work on Calorimeter TriggerWork on Calorimeter TriggerWork on Calorimeter TriggerWork on Calorimeter TriggerWisconsin scientists along with students are involved in:Testing electronics cardsWriting real-time control and diagnostic software

Writing detailed hardware emulation

Physicssimulationof triggersignals

Left:Jet SummaryCard backand frontsidesshowingcustomhigh-speedWisconsinASICs

Asst. ScientistsP. Chumney (l.) and M. Grothe (r.) test JSC:

ReceiverMezz. Card

BSCANASICs

SortASICs

BSCANASICs

PhaseASIC

W. Smith, August 2004 U. Wisconsin Task T - 13

UW built the endcap disksUW built the endcap disksUW built the endcap disksUW built the endcap disks

W. Smith, August 2004 U. Wisconsin Task T - 14

UW installs the chambersUW installs the chambersUW installs the chambersUW installs the chambers

L to R: F. Feyzi, D. Wenman, A. LanaroJ. Johnson, M. Giardoni, “Regis”, Y. Baek

W. Smith, August 2004 U. Wisconsin Task T - 15

UW CMS Physics ActivitiesUW CMS Physics ActivitiesUW CMS Physics ActivitiesUW CMS Physics Activities

Wide-ranging physics interest and expertise in the group• Analysis efforts coming to forefront as detector work finishes

• Ensure trigger systems operate at full performance at turn-on

• We studied simulated Higgs, SUSY, SM EW and QCD datasets

• Designed trigger systems that capture all the important physics efficiently while satisfying DAQ bandwidth requirements

• Design triggers for physics channels that are new to CMS

• Diffractive Higgs (Hbb), Vector boson fusion Higgs (Hbb)

• Full simulation and analysis for low mass Higgs

• Above channels and other VBF, Htt, HWW*

LHC Physics Center (LPC at FNAL)• Dasu is on advisory board and is co-head of trigger group

• Updating trigger emulation and developing trigger validation tools

Accumulate large physics samples our computing effort

W. Smith, August 2004 U. Wisconsin Task T - 16

UW CMS Computing & the GRIDUW CMS Computing & the GRIDUW CMS Computing & the GRIDUW CMS Computing & the GRIDAll U.S. CMS S&C Institutions are involved in DOE and NSF Grid Projects

• Integrating Grid softwareinto CMS systems

• Bringing CMS Productionon the Grid

• Understanding the operational issues

CMS benefits from Grid Funding

Deliverables of Grid Projects become useful for LHC in the “real world”

From Lothar Bauerdick, US CMS S&C L1 Manager, FNAL

W. Smith, August 2004 U. Wisconsin Task T - 17

CERN17%

UK 26%

Others21%

INFN 1222%USMOP 4

13%

Wisconsin21%

CPU Resources for Summer 2003 Production

UW Computing on CMSUW Computing on CMSUW Computing on CMSUW Computing on CMS

UW is leading single CMS institution in each of past 3 years• Access to ~500 CPUs on average

• Physics (~100), GLOW - 6 sites (~360 - soon 750), CS (~700)

• Dedicated storage and high-throughput network

• 10 TB storage @ physics

• Soon: ~100 TB on GLOW

• 1 Gbps campus backbone622 Mbps to WAN

First use of core grid technology• Condor = guts of grid

• UW Computer Science Collaboration:

• Prof. M. Livny, UW ComputingScience Dept., group leader

W. Smith, August 2004 U. Wisconsin Task T - 18

Good jobs

…fun and a rewarding education

Welcome to the adventure!

Lots of opportunityGood Physics &

Good Travel &Communication skills &

Good friends &

Particle Physics SummaryParticle Physics SummaryParticle Physics SummaryParticle Physics Summary