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Particle Physics in CCLRC

Explore the important role of smaller national laboratories in European particle physics research, including their contributions to detector construction, engineering expertise, computing, project management, and test beams. These laboratories must flourish as centers of scientific thought and attractive places for physicists to work, serving as sources of leadership and collaboration when appropriate.

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Particle Physics in CCLRC

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  1. Particle Physics in CCLRC John Womersley Director of Particle Physics, CCLRC Zeuthen May 2006

  2. The “constellation” of smaller national laboratories forms an important pillar of European particle physics • amplifiers for the national programmes • allow researchers to do more: detector construction, engineering expertise, computing, project management, test beams… • many labs have a broader mission: opportunity for synergies and connections with non-PP applications • To do this the laboratories must flourish as centres of scientific thought • places that the best physicists will want to work at • centres of gravity for the national programmes and sources of leadership, when and where appropriate • Particle Physics at RAL • roughly 100 people in PP department, plus engineering, instrumentation, accelerator, computing in other parts of the lab • total budget ~ £29M, almost all through PPARC, peer reviewed as part of the UK grants process • Good connections with rest of laboratory and UK university groups

  3. ATLAS Semiconductor Tracker All three levels of the Trigger system Major components of the tracker designed and built at RAL Project leadership for first level calorimeter trigger Barrel at RAL Trigger cabling in progress Final Barrel assembly at CERNSeptember 2005 ATLAS mid 2005

  4. FED Module CMS Electromagnetic Calorimeter Endcaps Tracker Readout Electronics • Leadership of project • Design/construction • Photodetectors & HV • System design • ASIC & board design • Firmware & control S/W Testing photodetectors in a magnetic field PbWO4 crystals ~ 450 ‘FED’ VME Modules Each reading out 25,000 Si strips (~ 100 FED delivered) VPT ~ 14,500 assemblies (~12,000 VPT delivered)

  5. BaBar at SLAC Physics analysis Simulation: 109 events/year Run control(also to be used in ATLAS, LHCb) Trigger electronics upgradefor drift chamber Front end cap calorimeter

  6. LHCb CCLRC role Construction of Ring Imaging Čerenkov(RICH) detectors: Engineering Hybrid Photon Detector (HPD) testing Detector Control Systems Simulation and reconstruction software Computing infrastructure Physics analysis HPDs in test beam at CERN Čerenkov rings in test beam RICH2 ready for transport LHCb cavern

  7. LHC Computing and Grid • Building and operating the UK Particle Physics Grid in collaboration with GridPP and as part of the LHC Computing Grid and EGEE. • About 30 people altogether • UK Tier-1/A Facility • operated by E-science centre & PPD staff • ~1000 CPU, 220 TB disk • 1.2 PB tape (0.2 used) • Network to CERN (10Gb/s in 2006) • SouthGrid • Tier-2 node in PPD • Middleware engineering • Security • Grid Operations (joint with ESC) • for UK/Ireland • 1 of 6 global operations sites • Experiment integration & support RAL planning a new computer building Number of concurrent jobs, Summer 2005

  8. The International Linear Collider • CCLRC is strongly involved • Significant accelerator work • Final focus, beam delivery system • ASTeC • New UK Accelerator Institutes • Detector work • LCFI • Ramping up effort in CALICE • LCFI: R&D for linear collider vertex detector • Identify heavy quark jets • e.g. Higgs bb,cc • RAL group has a central role • Mechanical studies • Sensor development • Physics studies

  9. goal Neutron Electric Dipole Moment • A permanent neutron EDM requires Parity and Time Reversal Violation • T Violation implies CP Violation • In the Standard Model • dn< 10-31 e cm Supersymmetry at the EW scale • dn< 10-25 e cm Complementary to accelerator supersymmetry searches • Cryogenic apparatus at ILL in Grenoble • Sussex, RAL, Oxford, Kure, ILL • Builds on previous successful experiment • world’s best limit 3 10-26 e cm • Installation underway; start running next summer • Goal is sensitivity of few  10-28 e cm (by 2009)

  10. Dark Matter ZEPLIN II liquid xenon detector in shield and associated gas system Interactions in the xenon • Dark Matter  low rate, small energy deposits • Very sensitive detectors • Well shielded • Underground to avoid cosmic rays CCLRC • Started UKDM programme • Developed and built Boulby facility • Designed and constructed series of detectors • Currently running ZEPLIN II • Liquid Xenon scintillation/ionisation detector • Underground infrastructure • Project management and finance control Lord Sainsbury opens the Boulby Underground facility, 2003

  11. MINOS Operationsand analysis MICE Demonstrate muon cooling T2K • Secure a strong role in detector and accelerator development and in physics analysis • Build up UK neutrino community Neutrino Factory • Build community, international scoping study  design study • RAL is one credible site Explore CP violation Learn more about neutrino mixing angles (govern CP violation) The Neutrino Programme Technology demonstration

  12. 4T solenoid & tracker Acceleratingcavities 4T solenoid & tracker Liquid hydrogen MICE • To explore CP violation in the neutrino sector… • Muon storage ring as a neutrino factory: • requires storing muons within 2μs • Ionisation cooling of the muon beam • never been tried • MICE is the technology demonstrator • RAL is home to an international collaboration of ~150 physicists • Installation starts later this year • Aim for results by the end of the decade µ Tracker prototype at KEK RF cavity test at Fermilab MICE Hall

  13. Changes coming in UK? http://www.ost.gov.uk/policy/nextsteps.pdf

  14. Room to dream! • ISIS • ISIS 1MW upgrade • ESS-class 5MW spallation source • Neutrino factory • Future multi-TeV muon collider Harwell Science and Innovation Campus

  15. Summary • Current projects address fascinating and fundamental science questions • CCLRC is helping the UK to play key roles in the world programme • Our priorities • scientific exploitation of LHC • R&D to prepare both for linear collider and for future neutrino facilities, with a decision time around the end of the decade • breadth of programme through smaller experiments where we can have a key impact • CCLRC and PPARC have issued a joint statement indicating support for accelerator R&D. There will be a call for proposals (~ June) for the continuation of UK Linear Collider accelerator work, MICE phase II and for neutrino factory design study work.

  16. Any future model for a "strategy for European particle physics" should acknowledge the important role played by the smaller national labs • There needs to be a careful balance between • the need to have everyone pulling in a coherent direction • maximise effort • the need to maintain the freedom for labs to operate independently and come up with new ideas and projects of their own • maximise creativity

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