1. A. Zylberstejn1Workshop D0 Praha D 0 Saclay activities 99  People  Computers  Activities  hardware  software

2. A. Zylberstejn2Workshop D0 Praha Activities D 0 Saclay 99  People  Physicists :11 tenures –8 with involvement in Atlas (5) CMS(1), Aleph(1), H1 (1) –3 on trigger hardware/software  Computer engineers –1 part time (software installation) –1 full time on level 3  1 student starting now

3. A. Zylberstejn3Workshop D0 Praha Activities on trigger  Same people working on the Atlas trigger  Hardware: FIC  design and construction of 12 units used in the level2 standard crate  Installed and test in June at FNAL  Trigger model ( cf. Atlas ): starting very soon  Level 3  1 computer engineer full time  MC data  « ADC » : in charge of package RawDataBuilder: packing MC chunks to look like raw data chunks

4. A. Zylberstejn4Workshop D0 Praha Computing in Saclay  Saclay has some envolvement in the Lyon computing center  In Saclay:  1 DEC UNIX with KAI problem to get D0 code installed because no « official »releases on 1 PC sous LINUX avec KAI  1 PC under Linux  Code Releases regularly installed  Link with FNAL  link RENATER to ATM 155Mb, 100 mb shared by Saclay and other users  Being negociated: ~1 Mb dedicated between Saclay and FNAL

5. A. Zylberstejn5Workshop D0 Praha Software Activities  Main involvement: testing D0STAR/Simpp  Pre-Simpp era: testing D0gstar output (In Fortran)  some bugs found in GEANT 3.21  Some problems found in geometry definition for some detectors  After Simpp:  code in C++ to build hbook histos for (almost) available information (generated tracks, hits, digi, reco,..)  Code for writting « general » Ntuple with variables above  maintenance and developpements  Tools for studying tracking from MC_exam et Ntuple  Magnetique field

6. A. Zylberstejn6Workshop D0 Praha Physics  Contacts with theorists in Saclay  See talk by Christophe  for Susy with R parity violation,  Diffractive phenomena: analyzis of RunI data using algorithms used to fit H1 data du run I with ’  Interest in physics ‘ with ’ the b quark  Interest in:  tracking  electron ID  muon ID