An Offliner at work Jan Fiete GrosseOetringhaus Offline

An Offliner at work Jan Fiete Grosse-Oetringhaus Offline Meeting, 28. 09

Freek out in meetings… Do shifts in the ACR… "a place, situation, or group marked by crowding, confusion, or unrestrained behavior" (definition from Merriam-Webster for zoo) Do support on the phone… …and of course work in the office

CAF / PROOF Schema Client – Local PC root ana. C Result stdout/result ana. C Remote PROOF Cluster root node 1 root Data Result Data node 2 root node 3 Proof master Proof slave Jan Fiete Grosse-Oetringhaus root node 4 Result Data 3

CAF • • …together with Marco Meoni Cluster administration User support (alice-project-analysis-taskforce) Bi-weekly meetings with the PROOF team Current plans – "PROOF storage" for the output of reconstruction immediately available for reconstruction – Datasets with associated files (ESD+Kine / AOD+derived AOD) Jan Fiete Grosse-Oetringhaus 4

Shuttle ECS DIM trigger Run Logbook DAQ No alternative system to extract data (especially online calibration results) between data-taking and first reconstruction pass! FXS DB . . . TPC SPD FXS MPH DCS TRD DCS arch. DB SHUTTLE FXS DB HLT FXS DB Jan Fiete Grosse-Oetringhaus OCDB Grid File Catalog 5

Shuttle …together with Chiara Zampolli • Subdetector expert support • Shuttle machine maintenance – recently moved to a virtual machine • Updated on each tag • On-call for problems Jan Fiete Grosse-Oetringhaus 6

h P(Nch) • Daily meetings (9. 00 - 10. 00 in 160 -R-009 except Wed) • Keep the d. N/dh and multiplicity analysis ready for data • Evaluation of new productions • Discussion about different Pythia tune d. Nch/dh First Physics Nch Jan Fiete Grosse-Oetringhaus 7

New tracklet algorithm …together with Maria Nicassio • Prev algorithm dependent on order of clusters • New algorithm increases eff. for central Pb+Pb from 50% to 75% Df Primaries Secondaries Combinatorics SPD Layer 1 x SPD Layer 2 Jan Fiete Grosse-Oetringhaus y Df 8

Review on Multiplicity …together with Klaus Reygers • "Review of Charged Particle Multiplicity Measurements in p + p-bar Collisions" for the Journal of Physics G • Discussion of historic and current theoretical and phenomenological models • Critical assessment of data from 30 Ge. V to 1. 8 Te. V • Open experimental inconsistencies Jan Fiete Grosse-Oetringhaus 9

E 735 vs UA 5 Jan Fiete Grosse-Oetringhaus published 10