5 June 2003Alan Norton / Focus / EP Topics1 Other EP Topics Some 2003 Running Experiments - NA48/2 (Flavio Marchetto) - Compass (Benigno Gobbo) - NA60 (Carlos Lourenco) EP/SFT Inherited Commitments (John Harvey)

5 June 2003Alan Norton / Focus / EP Topics2 NA48/2 COMPASS NA60 JUNE 13SEP 8OCT 26

5 June 2003Alan Norton / Focus / EP Topics3 Measure of the asymmetry in the Dalitz plot of   from  K + with respect to   from  K - Many other rare K decay channels

5 June 2003Alan Norton / Focus / EP Topics4 NA48/2 Requested:120 days in 2003 Got: ~ 70 days New Beams – simultaneous K + K - New Beam Spectrometer Different Trigger setup

5 June 2003Alan Norton / Focus / EP Topics5 To limit the biases due to the detector differences during the the data taking the K + and K - are simultaneous

5 June 2003Alan Norton / Focus / EP Topics6 Data taking: 75 days (minus Machine Development) 2 levels of hardware trigger select ~60 K trig/burst which are recorded by the online Pcfarm. The load corresponds to 0.5 GB of rawdata/burst Triggers are filtered by a L3 software trigger to produce several data streams: 1. goldraw: raw format. 2. goldcmp: compacted format (1/5 of raw). 3. calibration and streams for specific studies:10% of the full statistics.

5 June 2003Alan Norton / Focus / EP Topics7 L3 to be used in flagging mode Goldraw, goldcmp and other streams are written to Castor Total load per burst : 0.5 GB(goldraw) + 0.1(goldcmp) + 0.1(other streams) = 0.7 GB/burst which gives 3.5 TB/day and 175 TB in total (assuming ~70 % data taking efficiency.

5 June 2003Alan Norton / Focus / EP Topics8 NA48/2 Dedicated use of CDR and CASTOR Priority channels Reduce ~ 25 TB goldcmp to ~ 5 TB L3 runs continuously on lxbatch ~ 100 jobs on average Not yet fully migrated from ‘old’ na48 setup CDR main control on a Sun Na48pc/na48cern used for Lkr calibration Installation of 10 disk servers now critical !! 7 from Cocotime 3 from NA48/2 institutes

5 June 2003Alan Norton / Focus / EP Topics9 NA48/2 Preliminary Analysis during the run Priority channels Reduce ~ 25 TB goldcmp to ~ 5 TB Report to SPSC in October Quality of data Backgrounds Significance of sample

5 June 2003Alan Norton / Focus / EP Topics10 Compass DAQ period already started –Experiment under Setup –Physics running expected by mid June –Expected sample This year period will be shorter than last year one (~80%) assuming the last year efficiency expect to collect about 200 TB of raw data or more (will enlarge trigger acceptance to test On Line Filtering –Expected sustained DAQ rate Added more tracking devices but event size should not change much Same SPS duty cycle ~ 40 MBps or more (due to higher trigger rate) –No L3 Trigger (On Line Filtering) yet But it is being tested flagging events. Trigger rate will be increased up to 30% to test flagging efficiency

5 June 2003Alan Norton / Focus / EP Topics11 Compass (continued) 2002 Data Production –Still on going due to several delay sources (Objectivity → Oracle) & (9940 → 9940B) migrations troubles –Software setup –Delayed 9940B drives delivery Spectrometer alignment and “understanding” –Some Period Production delayed due to long code certification procedures –We will need to reprocess Objectivity data too –50% of 2002 data processed 4 “SPS periods”. 1 period to be produced 3 periods to be re-processed (the ones stored in Objectivity/DB) –0.7 s/event (on a 1GHz PIII machine) Improvements in production code slowed down program speed –Asked >100 SPECint200 needed to process all 2002 in ~ 4 months Up to now: we got no more that half of such CPU power

5 June 2003Alan Norton / Focus / EP Topics12 Compass (continued) Oracle DBs –Got help from IT for migration ~1FTE from IT, ~1-2 FTE from COMPASS –Lost 1-2 months due to delay in 9940B delivery and various troubles –Reasonably stable now Some problems still appears –Forced to stay on GCC2 due to available Oracle libraries No way to completely certify out code using GCC3 We risk to be the unique experiment asking for GCC2 installed when upgrading to future Linux releases

5 June 2003Alan Norton / Focus / EP Topics13 NA60 Indium Run: ~ 30 days in 2003 Will run with Protons in 2004 Expect about 0.5 TB per day Use CDR and Castor All analysis done locally Private Linux setup in B559 PC farms in Lisbon and Cagliari Main problem is network connection to B559

5 June 2003Alan Norton / Focus / EP Topics14 Commitments taken over by EP/SFT CERNLIB (including PAW and GEANT3) till end 2003 keep-as-is from 2003 AIDA (ANAPHE) residual support mainly HARP and Compass ? Geant 4 tests & examples GEANT4 (MoU -> Collaboration agreement) current level of support for visitors, PA for development of physics components