The Manchester group on D

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The Manchester group on DØ at the Fermilab
Tevatron proton-antiproton collider
Manchester Christmas Meeting 2003
Terry Wyatt

• Tevatron/DØ status
• Manchester group activities
• Terrys activities 2003
• Terrys activities 2004

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The Fermilab Tevatron Collider

• 1.96 TeV in centre of mass
• Current good quality dataset for physics analysis
  
• gt 200 pb-1
• Hope for 2 fb-1 by end 2006
• 106 leptonic W decays
• 105 leptonic Z decays
• 2000 semi-leptonic t decays
• Hope for 4-8 fb-1 by end 2009

CDF
DØ
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Tevatron performance history
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(No Transcript)
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The DØ Detector
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Most Important Remaining Problems

• Tevatron
• Luminosity delivered so far much lower than hoped
  for
• DØ
• Achievable L1 trigger rate below design
• tracking detector readout deadtime
• Calorimeter noise
• Online/offline monitoring needs more development

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Design
Currently

By June 2004
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The Manchester DØ Group

• 6 PhD students
• Simon, Emily, Tamsin, James, Paul, Yu-Hsiang
• 2 Postocs
• Matthew , Michiel
• 3 Academics
• Brian, Stefan, Terry
• Plus small fractions of Sabah, Scott and Dave
• Plus ties to
• Manchester HEP theory group
• Mike Seymour and Jeff Forshaw jointly supervise
  Emily and James
• Physics studies overlap with Manchester Atlas
  group
• PPARC Postdoc fellowship starting later
  this month
• Ex-members of Manchester group staying in DØ
• Gavin Hesketh (PhD 2003, now Northeastern
  University, Boston, US)
• Liang Han (starting new DØ group at USTC,
  P.R.China)
• There are DØ groups of a similar size at Imperial
  College and Lancaster

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Manchester Activities on DØ
tracking muon id. triggering
monitoring
physics analysis W/Z ? searches
diffractive processes plus
contribution of Manchester farm to DØ data
processing
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Terrys Activities 2003

• Employed by Fermilab as Guest Scientist (until
  March 2003)
• Convener of the L3 trigger group
• General work on developing triggers/commissioning
  trigger system
• PPARC Senior Research Fellowship (April
  2003-March 2006)
• Convener of DØ WZ physics working group
• Physics/technical work via collaboration with
• Emily and Paul (WZ physics)
• Simon and Liang (tau tagging)
• Liang and Yu-Hsiang (track trigger)
• CDFDØ combined electroweak working group
• Electroweak review speaker at Lepton-Photon
  conference
• Blah, blah
• Chair of DØ Institutional Board (elected)
• Member of DØ Advisory Council (ex officio)
• Member of DØ Computing Policy Board
• Contact person/budget holder for UK-DØ group
• Manchester DØ group admin.
• Non-DØ work
• Referee for Phys.Rev.D and Phys.Rev.Lett.

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Terrys Activities 2004

• My main aim is to analyse data myself !!
• (as well as continuing to work with members of
  the Manchester group
• and fulfill my various organizational
  responsibilities to DØ)
• W/Z ? leptons
• physics analysis
• e.g., sBr (W?l?) / sBr (Z?ll)
• e.g., Br (W?e?) / Br (W???)
• statistical uncertainty 1 per mille
• a vehicle to
• understand detector performance
• develop triggers and measure their performance
• understand QCD phenomenology of proton-antiproton
  collisions
• essential (for DØ as a whole) to get
  non-Fermilab-based analysis up and running
• genuine collaboration on analysis within European
  groups would be a very positive development in
  this regard