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Understanding the nature of matter - Using GRIDS to compute from the smallest to the largest scales. PARTICLE PHYSICS AND ASTRONOMY RESEARCH COUNCIL. UK Agency for the support of: High Energy Physics - the nature of matter and mass Particle Astrophysics - laws from natural phenomena
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Understanding the nature of matter - Using GRIDS to compute from the smallest to the largest scales
PARTICLE PHYSICS AND ASTRONOMY RESEARCH COUNCIL • UK Agency for the support of: • High Energy Physics - the nature of matter and mass • Particle Astrophysics - laws from natural phenomena • Astronomy - the nature and origin of the Universe • Solar System - the nature of the Sun and its planets Science GRIDs for Science
We are “fairly sure” that there is a lot of stuff in the Universe which we don’t know about- School Talk, 2001 Now things have got much clearer: we are now much more certain that we know absolutely nothing about most of the Universe- School Talk, 2003
Cosmic Pie Heavy Elements: 0.03% Neutrinos: 0.47% Stars: 0.5% Free H & He: 4% Dark Matter: 25% Dark Energy: 70% Source of slide: Kolb
DSS Optical IRAS 25m 2MASS 2m GB 6cm ROSAT ~keV WENSS 92cm NVSS 20cm IRAS 100m Virtual Observatories Observations made across entire electromagnetic spectrum See AstroGrid Talks by Nic Walton (wed)Guy Rixon (thurs) Different views of a local galaxyNeed all of them to understand physics fully Databases are located throughout the world
Particle Physics Astronomy & Astro- Physics
Mechanism of explaining the mass of matter still awaits a crucial verification: discovery of the “HIGGS” particle There are many possible explanations of “dark matter” based upon undiscovered particles
? HIGGS Super Symmetric Particles ? 1. Take matter and anti-matter 2. Accelerate and collide 3. annihilate to produceenergy 4. new particles are made from the energy
CERN Large Hadron Collider • The world’s most powerful particle accelerator • Due to turn on in 2007 • Will collide protons at 7 Tera Electon Volts….
ATLAS • general purpose: origin of mass, supersymmetry, micro-black holes • 2,000 scientists from 34 countries • CMS • general purpose detector • muon tracking, electromagnetic calorimeter, central tracking and hadron calorimeter • LHCb • to study the differences between matter and antimatter • producing over 100 million b and b-bar mesons each year • ALICE • heavy ion collisions, to create quark-gluon plasmas • 50,000 particles in each collision 4 LHC Experiments
proton (or anti-proton) proton ... Proton collisions produce a lot of debris ....
The LHC Data Challenge Each event is complicated: Typical Selectivity: 1 in 1011 Like looking for 1 person in a ten world populations Or for a needle in 200,000 haystacks!
UK Centre USA Centers Italy Center Germany Center France Center …others Tier2 Center Tier2 Center Tier2 Center Tier2 Center Tier2 Center HPSS HPSS HPSS HPSS HPSS HPSS ~PByte/sec ~20 PBytes/year Online System CERN Experiment GEANT Network ~10-100 Gbps National Network ~10 Gbps ~1-10 Gbps Institute Institute Institute Institute
19 UK Universities, CCLRC (RAL & Daresbury) and CERN Funded by the Particle Physics and Astronomy Research Council (PPARC) GridPP1 - 2001-2004 £17m "From Web to Grid" GridPP2 - 2004-2007 £15m "From Prototype to Production" The GridPP Project
LHC Computing Grid Project (LCG) Manpower Management Travel etc UK Tier-1/A Regional Centre Hardware Middleware, Security and Networking Manpower UK Tier-1/A Manpower Grid Application Development LHC and US Experiments + Lattice QCD, Phenomenology and Generic Portal UK Tier-2 Regional Centres Manpower
Middleware Development Network Monitoring Configuration Management Grid Data Management Storage Interfaces Information Services Security
Application Development ARDA BaBar GANGA Lattice QCD SAMGrid CMS
Deployment : UK Tier-1@ RAL • High quality data services • National and International Role • UK focus for International Grid development • 700 Dual CPU • 80 TB Disk • 60 TB Tape (Capacity 1PB) Grid Operations Centre
Deployment: UK Tier-2 Centres ScotGrid Durham, Edinburgh, Glasgow NorthGrid Daresbury, Lancaster, Liverpool, Manchester, Sheffield SouthGrid Birmingham, Bristol, Cambridge, Oxford, RAL PPD, Warwick LondonGrid Brunel, Imperial, QMUL, RHUL, UCL Mostly funded by HEFCE
…please see the demo….. http://www.hep.ph.ic.ac.uk/e-science/projects/demo/index.html
Further Info http://www.gridpp.ac.uk