1. Pavel Nevski STAR analysis meeting October 22, 2002 Status of STAR Detector Simulations Pavel Nevski BNL Standard setup Standard setup New detectors Next steps

2. Pavel Nevski STAR analysis meeting October 22, 2002 St a n d ar d S et u p

3. Pavel Nevski STAR analysis meeting October 22, 2002 Standard Setup n Silicon tracker – 3 layers 4 th layer geometry also available 4 th layer geometry also available n Central TPC (+MWC) –A few corrections during last year »gas density (overall effect - 0.5 Mev for a 2 m track) »membrane material n Forward TPC n Central Barrel Trigger

4. Pavel Nevski STAR analysis meeting October 22, 2002 Standard Setup n Barrel Calorimeter + Shower Max n End Cap calorimeter –New realistic design implemented by O.Rogachevski (Dubna) and recently verified by J.Balewski –Few (modular) versions foreseen for the future n Magnetic Field –A recent bug fix (thanks to J.Thomas) Right size field inside magnet was stretched by 20 cm –0.5 cm grid now (for fast access)

5. Pavel Nevski STAR analysis meeting October 22, 2002 N e w D et e ct o rs

6. Pavel Nevski STAR analysis meeting October 22, 2002 New Detectors n Beam-beam counters (Akio,Yiqun,Kopytin) n Forward Pion Detector (Akio,Yiqun) n Photon Multiplicity Detector (Chattopadhyay,Subhasis) n TOF system n Geometry files are ready, tested in standalone mode n integration is expected soon (in GSTAR as well as in G2T and ROOT4STAR)

7. Pavel Nevski STAR analysis meeting October 22, 2002Documentation n Nice web pages available under STAR->computing->simu->Geant3 STAR->computing->simu->Geant3 n User Manual n System descriptions n Examples of kumac files n Many thanks to Olga Barannikova

8. Pavel Nevski STAR analysis meeting October 22, 2002 Production System n Set of scripts available for massive production n Based on a common catalog n Portable to other clusters (LBNL, US ATLAS etc) (LBNL, US ATLAS etc) n Intensively used recently for trigger studies

9. Pavel Nevski STAR analysis meeting October 22, 2002 Next Steps n Some revision of the geometry is needed –SVT cables (?) n Physics: –Hadronic physics – GHEISHA vs GCALOR –…. More is expected n Geometry abstraction for reconstruction –Active element alignement –Passive material for track fitting –XML ? G4 ? More is expected

10. Pavel Nevski STAR analysis meeting October 22, 2002Conclusions n New Simulation Leader – Maxim Potekhin n STAR detector simulations are in good shape n Should be useful for both for Data Analysis and future Detector Upgrades n Thanks to all who worked on simulations !