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CuCu 200GeV analysis ALICE/PHENIX computing

CuCu 200GeV analysis ALICE/PHENIX computing. DongJo Kim Sep 11, 2006. Run Infos. Cu+Cu 200GeV(~3.0 nb^-1) 100k segments Good 547 runs LVL1 trigger ERTLL1 4x4b&BBCLL1 + LVL2 algorithm L2EmcHighPtTileTrigger + vertex_z +-30cm. Pi0 extraction. 1.5<pT<2.0 Central events 0-5%

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CuCu 200GeV analysis ALICE/PHENIX computing

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  1. CuCu 200GeV analysisALICE/PHENIX computing DongJo Kim Sep 11, 2006

  2. Run Infos • Cu+Cu 200GeV(~3.0 nb^-1) • 100k segments • Good 547 runs • LVL1 trigger • ERTLL1 4x4b&BBCLL1 • + LVL2 algorithm • L2EmcHighPtTileTrigger • + vertex_z +-30cm.

  3. Pi0 extraction • 1.5<pT<2.0 • Central events 0-5% • Mixed Bkg

  4. Shower merging pi0’s • The probability for the loss of pi0 due to the merging of the two decay photons in oneEMCal cluster

  5. Well calibrated pi0’s MB<6GeV<ERT

  6. Cross section (MB/LVL2)

  7. Spectras

  8. Correlation Functions Just one run ; 164K MB events

  9. ToDo • Finalize the production code • Test later code developments to handle centrality and reaction plane • PWG/CNT files , how much ? • Files have not arrived at dCACHE yet • Should be ready for Analysis train in a week

  10. ALICE/PHENIX Computing • Data reconstruction (Tier-1) • ALICE Tier-1 centre as a part of the NDGF coordinated Nordic Tier-1 center • Faster Network • Large Storage(HPSS, big disks) • Fast access to Data ( no overload etc…) • More CUPs Proposal : CPU: 300 CPUs Disk: 170 TB tape: 70 TB/year (only tapes, since no tape robot) • Analysis (Tier-2) • Tier-1 can be used • same but not so small • 100CPUs / 10TB

  11. ToDo • ALICE Grid middleware Test • Installation and test should be done soon in a available site • JYFL now doesn’t have a faster network • Can we do this in CSC NOW ? • ALICE computing softwares should be installed for testing and Joining to Tier-1 test • CPUs, Storages are needed • Several server machines • DB servera ( calibration and file catalog for data, Grid ) • AFS/CORBA servers to have controls of softwares

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