The D0 experiment through some numbers:
- Run 1 (1992 – 1996) protons anti-protons collisions at 1.8 TeV , integrated luminosity 125 pb-1
– Detector outer dimensions: 20 x 12 x 12 (in meters for length x height x width ), weight: 5500 tons
– 120 000 channels
– central detector composed of :
drift chamber (vertex detector),
transition radiation detector (TRD under CEA-Saclay responsability)
central drift chamber et two end-caps bouchons for charged particles tracking
– Liquid Argon calorimeter (U/LAr em part, U-Niobium/Lar Had part, Cu/LAr coarse Had central and Steel/LAr coarse Had endcaps)
55000 channels
in three cryostats of 5.2 m diameter (central: 3 m long, two endcaps: 2.6 m long each)
20000 gallons (with storage dewar) of liquid argon
within a 1.8 T toroïd
– muons central chambers: 6624 drift cells (in 94 chambers)
– collaboration of more 500 scientists from 60 institutes from 15 countries
– more than 110 theses
- Tevatron Run 2 (2001- 2011) : proton anti-protons collision at 1.96 TeV, crossing time 396 ns, 36×36 bunches
– D0 upgrades between 1996-2001:
– new central and inner detectors
silicon microstrips vertex detector with 793 000 channels (SMT)
scintillating fibers tracking detector (200 km of fibers) (CFT)
2 T solenoïd (1 X_0) , 2.7 m long, 1.4 m diameter (in front of the calorimeter)
– preshower detectors: central (CPS) and forward (FPS)
– new calorimeter electronics
– scintillation counters for the central muon detector
– forward muon detectors
– very forward proton detector (removed in 2007)
– trigger rates L1 = 1 kHz, L3 = 50 Hz
– typical data acquisition efficiency 85%
– typical events size: 220 kb/events (more than 1.5 billions events for Run2a from 2002 to march 2006)
– integrated luminosity at Run 2a 1.5 fb-1
– Run 2b from 2006 to 2011. Integrated luminosity of 10.5 fb-1
– collaboration of more than 600 scientists (50% non-US), from 88 institutes (38 US and 50 non-US) from 19 countries
– more than 300 defended phD
– more than 350 publications