1. Nick Hadley Maryland DØ Effort Maryland DOE Review August 30, 2005

2. Nick Hadley People Faculty –Drew Baden, Sarah Eno, Nick Hadley Research Faculty –Shuichi Kunori Postdocs –Terry Toole, Michael Sanders, Marco Verzocchi, Jeremy Mans Grad Students –Chad Jarvis, Lei Wang, Matt Wetstein, Ming Yan, Junjie Zhu –Elizabeth Lockner Undergrads –Mark Burr

3. Nick Hadley Maryland DØ Past Joined experiment in 1985 –Long History, first physics paper Maryland student thesis Leadership –Physics Convenors (NP2, WZ, top), Physics Coordinator, TriggerMeister2, Monte Carlo head, Upgrade Trigger head, Computing and Software head, Institutional Board Chair, and many other positions Hardware and Software –Electronics, trigger, testbeam, muon scintillator counters, Jet algorithms, muon reconstruction, Monte Carlo (fast, C++ conversion), Trigger Analysis, Thumbnails, electron certification Physics –LQ, Squark/gluino, top, WZ, Model Independent Searches

4. Nick Hadley Maryland DØ Present Drew Baden –L2 Magic Bus Transceiver cards (MBT) - complete –L2 Alpha Board replacement Project - complete –WZ Physics Sarah Eno –Monte Carlo group co-leader – term complete –Fast Monte Carlo head –WZ Physics Nick Hadley –IB Chair – term complete –Speakers Bureau chair –WZ Physics

5. Nick Hadley Maryland DØ Present Shuichi Kunori –Monte Carlo guru, DAQ Shifter (also CMS) Terry Toole –Trigger Meister, L2 MBT and Beta projects –WZ Physics Michael Sanders –Event monitoring, W mass muon channel Marco Verzocchi – Wilson Fellow as of Aug. 1 –WZ physics group co-leader, PMCS Monte Carlo, Thumbnail tools, calorimeter calibration Jeremy Mans – Assis. Prof. Minn as of Aug. 1 –Z Rapidity Analysis

6. Nick Hadley Students L2 hardware, PMCS Monte Carlo, Electron Certification, Jet resolutions, shifts, MC Farm, Calorimeter experts WZ Physics

7. Nick Hadley DØ Status 890 pb -1 on tape as of Aug. 22, 2005 –Nearly nine times the Run 1 sample –360 pb -1 first six month of this year Efficiency now close to 90% L (best) = 11.8e31 –Less than factor of 2 to go to 20e31 –Goal for run 2 = 4.4 fb -1 (8.5 fb -1 ) by 2009 –470 pb -1 delivered Oct-August, year goal 470 pb -1, we’re ahead as one month to go

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10. 2005 Physics Results 42 Physics results approved for conferences –better than existing results –Bs, Bd lifetimes, top xs, WZ xs, searches, inclusive jet cross sections 14 Papers published (4 B, 4 WZ, 2 Higgs, 3 NP, 1 QCD) 12 more papers submitted for publication

11. Nick Hadley

12. Bs Delta Gamma Measurement

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14. Bs Mixing Projection

15. Nick Hadley Top Mass vs Luminosity

16. Nick Hadley Future Maryland effort gradually decreasing Still good physics to do: publish Z rapidity, W mass, student theses… Luminosity goals for 2006: 2.2 fb-1 (1.6 fb-1) for 2007: 4.0 fb-1 (2.3 fb-1) Layer 0, trigger upgrades main physics performance

17. Nick Hadley Conclusions Maryland DØ group is very productive. Looking forward to exciting Run 2 physics. –Many grad students! Layer 0 and trigger upgrades this fall