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Particle Physics Experiment 9 Academics + 1 retired + 1 visiting Professor –Includes Doyle (80% GridPP/Senior Fellow), Parkes (PPARC PD Fellow), Rahman.

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Presentation on theme: "Particle Physics Experiment 9 Academics + 1 retired + 1 visiting Professor –Includes Doyle (80% GridPP/Senior Fellow), Parkes (PPARC PD Fellow), Rahman."— Presentation transcript:

1 Particle Physics Experiment 9 Academics + 1 retired + 1 visiting Professor –Includes Doyle (80% GridPP/Senior Fellow), Parkes (PPARC PD Fellow), Rahman (50% Solid State), Soler (joint appointment with CCLRC) 20 Research Staff –15 PPARC (inc 4 grid) + 5 (Scottish Enterprise, EPSRC, SHEFC/JREI, EU) 17 Ph D students –6 PPARC quota + 4 PPARC Case/E-science + 3 University + 4 other –  PPARC CASE bidding is wonderful opportunity. Keep it! 6 Support: –5 PPARC Technicians, 0.5 University Secretaries, 0.5 PPARC Secretary (GridPP) Long-term programme –Core is the academics plus long-term PPARC RAs Hardware (RA3 + 2 RA2s)Software (3 RA2s)

2 Particle Physics Experiment Experiments producing physics results (run until 2006) –ZEUS,CDF Preparations for the LHC (run from 2007) –ATLAS, LHCb e-science: the Grid –ScotGRID, CDF grid, ATLAS, LHCb Detector development –Radiation hard detectors for PP; spin-out applications Long term future –HARP, MARS, linear collider Finishing: ALEPH, DELPHI, NOMAD

3 PPE: new funding and support (Jan 2000/Dec 2001) University –Facilities (clean room, computer room, 10 new offices, more lab space): value added to PPE research £492K –Operating budget (2 years) £90K PPARC –Rolling grant (4 year spend limit quoted)£2728K –16 other awards£1396K –plus share in value of CDF-JIF Other funders –19 awards£1450K Total (9 P.I.’s) £6156K excluded: RAL line, quota students, University PGs, staff salaries, existing buildings, CERN sub

4 ZEUS: our main science engine FTEs (1.4 acad [4 people], 2 RA, 3 PG). Glasgow physics: –Prompt  in photoproduction. 1st measurements at HERA. led by us –Prompt  + jets in photoproduction  intrinsic k T. All Glasgow –Angular and current-target correlations in DIS –Azimuthal asymmetries –Dijet cross sections using real and virtual  (unique Q 2 region) –High dijet masses in photoproduction   structure Analyses in progress –Single top production –  + jet in DIS –Virtual photon structure via dijet production –Scaling violations in  p interactions –DIS event shapes   s –Jet substructure   s –Charged current events at high E T  W-mass and QCD tests Papers on MLLA phenomenology (2 with Bristol) + review

5 ZEUS results  p   + jet study p T balance: Quark intrinsic k T in proton QCD event shape study:  s and  0 (non-perturb.)

6 ZEUS: upgrade (2002-6) Benefits: –More Lumi, heavy flavours, tracking acceptance, polarisation Glasgow aims: –prompt photon studies. Need higher statistics: to probe QCD effects. to study diffractive events –Prompt photons with charm - using Microvertex detector –Jets and event shape studies: higher Q 2 to compare to MLLA, charm azimuthal asymmetries in boson-gluon fusion using charm tag jet cross sections to higher Q 2 and E T –More sensitivity in top search (FCNC limits, already much better than LEP, TeVatron) Work on background reduction

7 CDF: our new science engine FTEs (1.2 acad [2 people], 1.6 RA, 5 PG) – [PG funding from Fermilab and Argonne] Hardware and analysis tools: –Big involvement in SVX development, testing, calibration –We lead data-bases (calibrations etc), CDF Grid activity –Accelerator development (antiproton collection, backgrounds {PG student}, technicians) –CDF-JIF analysis server in Glasgow Physics has started: –search for B s  J/  –paper on double diffraction dissociation Main thrust: physics of b-quarks.

8 CDF: b-physics Production mechanisms poorly understood –need to establish QCD mechanisms –pre-requisite for Higgs search –needed for accurate CKM measurements (sin 2  +..) Build on J/  study and b-jet tagging (ex-ALEPH): –B s lifetime using B s  J/  –B d mixing –  b lifetime –B s lifetime using semileptonic decays Bid for new RA –use b-tagging to study top physics

9 CDF Hardware and analysis Vertex detector Run 1: B +  J/  K + Run 2: J/  decay length

10 ATLAS: our main future FTEs: 2.3 academics [6 people], 4 RA, 1 PG –Smith is chairman of ATLAS collaboration board Forward Semiconductor Tracker (SCT) –Commission test system for modules –Systems test lab at CERN –Prototype thermal shield –Disk mock up. Services –Module irradiations and subsequent tests –‘3D’ technology - continues as R&D project Preparations for physics –WH signal/background studies –Interface to EU data-grid management

11 ATLAS- Forward semiconductor tracker tests Laser-scanning tests in Glasgow (above) Forward SCT module (2 layers) showing services (left) System test at CERN

12 ATLAS: low-mass Higgs via WH, H  b,bbar Kinematic cuts to suppress WZ & continuum background with high efficiency for WH.

13 ATLAS plans Forward SCT modules –300 modules to be bonded, tested QA’d in Glasgow –Services layout work –Irradiation and tests –System test facility at CERN –Assembly, testing, commissioning, integration (part of UK team) Physics preparations –Interface to grid –Data challenges. Use of ScotGRID facility

14 LHCb: our new future FTEs building up: – 2 new academics (Soler, Parkes), 1 RA, 1 PG rising to 2 LHCb RICH project (Ring Imaging CHerenkov) –Photon detector technology  pixel HPD as baseline –ASIC design for ALICE/LHCb (with CERN) –RICH2 Mechanical design and assembly project (CCLRC based) –Development lab in Glasgow LHCb VELO project (VErtex LOcator) –n-in-n technology  EU funded development –Irradiated detector tests to very high fluences

15 LHCb - RICH and VELO Single photoelectron spectra visible R and  layers Flux > 3.10 14 n cm -2

16 LHCb: plans RICH –Full scale test facility in Glasgow (250 HPDs = 250k pixels) –Laser alignment –Gas monitoring –Simulation –Mechanics VELO (following Parkes’s transfer from Liverpool) –Software coordination, algorithms –Sensor R&D –Test beam analysis, irradiations ScotGRID –Monte Carlo Facility and studies (experience on MAPs) Bid for RA: Parkes’s transfer brings responsibilities

17 Developments for future detectors and facilities Detector development + involvement in future linear collider (ECFA study, MAPS) & HARP 4 academics, 6 RA, 5 PG. Lots of external funding Radiation-hard detectors: –Lazarus effect –3D-technology - €2.2M project –Charge carrier transport studies (builds on IMPACT project) –GaAs/AlGaAs detectors needing no bias –SiC as detector material –Pixel detector testing (with RAL, LAD1 and Dash-E projects) –MEDIPIX2 collaboration - bump bonding –Test our prototype ion-beam profiler –Electrode arrays for retinal imaging

18 3D radiation-hard detectors for PPE Photoelectro- chemical etching Dry Etching Laser Drilling Contacts: Schottky-Schottky n-Schottky p-n junction Collection: distance /10, time /10, volts /100 Si & GaAs  & X-rays

19 New detector materials for high radiation environments  particle pulse height spectra from pad diodes as bias voltage is varied GaNSiC

20 Detector R&D plans CERN R&D collaborations –RD39,48, INTAS (Glasgow coordinates): ongoing development EU-projects –3D RID (Glasgow coordinates) Closely-spaced matrix of electrodes through the material –CANDID Pixel detector for angiography Technology transfer –MEDIPIX2  Philips (Director for strategy is Honorary Professor here) New materials –SiC, GaN (wide gap) Retinal imaging microarrays (with SCPP Santa Cruz + others) Ion beam profiler (Scottish Enterprise)

21 Future accelerators e + e - linear collider: –MAPS (Monolithic Active Pixel Sensors) (PPARC grant) approved R&D project at DESY. Intelligent alternative to CCDs partners in PRIMA bid (Basic Technology - resurrect??) –Fermilab accelerator know-how (MARS)  machine/detector interface Neutrino Factory –HARP (study muon neutrino source) NOMAD know-how alignment and tracking (like LHCb methods) Compare to MARS simulations

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