LHC experiments starting with the p-pbar community in 1986

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 1

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 3

Observe the collisions

CMS

24-04-09 4Global collaboration Hans Hoffmann, CERN honorary

LHC Experiments

ATLAS, CMS:- Higgs boson(s)- SUSY particles- more dimensions?

ALICE:Quark Gluon Plasma

LHC-B:- CP violation in B

24-04-09 5Global collaboration Hans Hoffmann, CERN honorary

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 6

Example: Technologies’ watch

From CERN IT

Maximum use of everybody’s knowledge

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 7

LOI letter of intent 1992

TP technical proposal 1994

MOU memorandum of understanding “construction”

M&O MOU operation MOU

2003

RD3

RD34

RD6RD13

RD27RD20

RDxx

RDyy

Conception Phase

Design Phase

Construction Phase

Exploitation Phase

Beam 2009

TDRs technical design reports from 1996

ASCOT

EAGLE

ATLAS only

ATLAS OrganizationJanuary 2009

ATLAS Plenary Meeting

Collaboration Board(Chair: K. Jon-And

Deputy: G. Herten)

Resources ReviewBoard

Spokesperson(F. Gianotti2 Deputies)

Technical Coordinator

(M. Nessi)

Resources Coordinator(M. Nordberg)

Executive Board

CB Chair AdvisoryGroup

Inner Detector(L. Rossi)

Tile Calorimeter(B. Stanek)

Magnet System(H. ten Kate)

ComputingCoordination

(D. Barberis,D. Quarrie)

Data Prep.Coordination

(C. Guyot)

LAr Calorimeter(I. Wingerter-Seez)

Muon Instrumentation

(L. Pontecorvo)

Trigger/DAQ( C. Bee,

L. Mapelli)

ElectronicsCoordination

(P. Farthouat)

PhysicsCoordination

(D. Charlton)

AdditionalMembers

(T. Kobayashi,M. Tuts, A. Zaitsev)

Commissioning/Run Coordinator

(T. Wengler)

TriggerCoordination

(N. Ellis)

24-04-09 8Global collaboration Hans Hoffmann, CERN honorary

Last years’ ATLAS meetings

24-04-09 CERN in everyday life H F Hoffmann CERN honorary 9

Global collaboration Hans Hoffmann, CERN honorary24-04-09

“Virtual” international big science laboratoryFunded, supervised by ~50 funding agencies

10

37 Countries 169 Institutions 2800 Scientific Authors (1850 with a PhD)1200Technical personsThousands of industrial

relations

ATLAS (Spokesperson Fabiola Gianotti)Number of scientists: 2100

Number of institutes: 167

Number of countries: 37

24-04-09 11Global collaboration Hans Hoffmann, CERN honorary

The ATLAS Cavern24-04-09 12Global collaboration Hans Hoffmann, CERN honorary

24-04-09 13Global collaboration Hans Hoffmann, CERN honorary

The ATLAS Cavern24-04-09 14Global collaboration Hans Hoffmann, CERN honorary

Assembly CMS

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 15

24-04-09M.Nessi

ATLAS

Global collaboration Hans Hoffmann, CERN honorary 16

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 17

Trajectographe à silicium

Des capteurs en silicium très finement segmentés (rubans et pixels) permettent de suivre la trajectoire des particuleset de mesurer leur impulsion

Comparable à un appareil photo à 70 millions de pixels prenant 40 millions de clichés par seconde!

But: mesurer les trajectoires & l’ impulsion des particules chargées

Tracker

EM calorimeter 80 000 xtals, lead tungsten oxide, 80% metal: transparent

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 20

Trigger and Dataflow40 MHz

Pattern

Time16 Million channels3 Gigacell buffers Charge

100 kHz

s Level 1

1 kHz

ms Level 2

100 Hz

sec

100 Gigabit/s

Level 3

1000 Gigabit/s

Read Out Buffers200 Gigabytes

1 Petabyte/yPermanent Storage

Software structure/layers

non-HEP specificsoftware packages

Experiment Framework

EventDet

Desc.Calib.

Applications

Core Libraries

SimulationData

Mngmt.Distrib.Analysis

Every experiment has a framework for basic services and various specialized frameworks: event model, detector description, visualization, persistency, interactivity, simulation, calibration, etc.

Many non-HEP libraries widely used

Applications are built on top of frameworks and implementing the required algorithms

Core libraries and services that are widely used and provide basic functionality

Specialized domains that are common among the experiments ( some in grid middleware)

GRID Middleware

OS & Net services

com

mon

for e

xpts

.ex

pt. s

peci

ficgr

ids/

netw

orks

30 June 2008 21Grid 2008; H F Hoffmann, CERN

“Software and Grids”

What to do with the data?

24-04-09 Global collaboration Hans Hoffmann, CERN honorary 2222

individualphysicsanalysis

batchphysicsanalysis

batchphysicsanalysis

detectorEvent Summary

Data (ESD)

rawdata

eventreconstruction

eventreconstruction

eventgeneration,simulation

eventgeneration,simulation

event filter(selection &

reconstruction)

event filter(selection &

reconstruction)

processeddata

Analysis Object Data (AOD)(extracted by physics topic)

Detector calibration alignment

Detector calibration alignment

@

@CERN in the Grid

24-04-09 Global collaboration Hans Hoffmann, CERN honorary

July 2008

“Digital camera”, 150 M pixels, observing: 109 frames/s, recording selected frames: 200/s, ~1 GB/s recorded volume

Concorde(15 Km)

Balloon(30 Km)

CD stack with1 year LHC data!(~ 20 Km)

Mt. Blanc(4.8 Km)

Computing GRID the size of the planet!

24-04-09 25Global collaboration Hans Hoffmann, CERN honorary

International cooperation: Russian workers converting shells to CMS detector parts

Structure

CMS est constitué de plus de 10 000 tonnes d’acier – en comparaison la Tour Eiffel ne pèse “que” 7 000 tonnes!

Ce “socle” a été réalisé au Pakistan et est arrivé au CERN par bateau, train et camion!

Contribution from Pakistan

CMS

24-04-09 27Global collaboration Hans Hoffmann, CERN honorary

ALICE: an ultra-sensitive eye on the Universe:Quark-gluon plasma?

31 countries, 109 institutes, 1000 scientific/technical participants

29

LHCb: an asymmetrical perspective

What is the Grid?

The World Wide Web provides seamless access to information that is stored in many millions of different geographical locations

In contrast, the Grid is an emerging infrastructure that provides seamless access to computing power, software and data; distributed over the globe

enabling CERN users to work from home as if at CERN

24-04-09 31CERN in everyday life H F Hoffmann CERN honorary

Marek Domaracky24-04-09 32CERN in everyday life H F Hoffmann CERN honorary

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“e-Science is about more than networks, Grids, High Performance Computing...; e-science is about global collaboration in key areas of science and the next generation of infrastructure that will enable it.” John Taylor, Director Research Councils, UK, 2000

Provide equal access to the data, software, compute power. . to all participating

scientists

large datarepositories; data services

communication means

facilities, instruments,

services

e-librariesarchive/curation

centres

people & VOs skills &

training computers (HPC; HTC); computer aided services

interoperable open software

networks, services, dark λ

Multidisciplinary Collaborations:

Common objectivesOpen sharing Critical mass

Trust and respect>Best efforts

Quality Assurance Service-oriented

e-science infrastructure ingredients

24-04-09 34CERN in everyday life H F Hoffmann CERN honorary

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Distance to Centre Galaxy28 000 light years

Black hole of 3.5 10 6 solar masses

37

Ism

ail S

erag

eld

in