ALICE Status 4th CERN-Korea meeting Korean participation ALICE November 2008 CERN-Korea J. Schukraft

Korean Participation in ALICE Participating Groups: Kangnung: TOF assembly & commissioning, physics Sejong: Grid computing, physics Kisti: ALICE Korea Tier-2 Since April 2008 Yonsei: TRD assembly and commissioning, physics Pusan (replacing Pohang) Physics Activity Report by Dr. Y. W. Baek April 08 CERN-Korea J. Schukraft

Collaboration News Elections/Nominations New Institutes since April Houston (USA) EMCAL, Computing Institutes leaving BARC Mumbai (India) leaving ALICE associate member, completed its technical contribution to the PMD electronics Ongoing discussions Comsats, Pinstec (Pakistan) Physics, computing Elections/Nominations Spokesperson: JS re-elected 1.3.2009 until end 2010 Deputy Spokesperson, P. Kuijer (NIKHEF/Utrecht), 2 years (2009-2010) Resource Coordinator: C. Decosse (CERN) starting 1.1.2009 April 08 CERN-Korea J. Schukraft

ALICE Set-up TOF TRD HMPID ITS PMD PHOS Muon Arm TPC Korea: Detector: Size: 16 x 26 meters Weight: 10,000 tons TOF TRD HMPID ITS PMD PHOS Korea: - TOF - TRD - Computing - Physics Muon Arm Collaboration: > 1000 Members > 100 Institutes > 30 countries ALICE Set-up TPC April 08 CERN-Korea J. Schukraft

ALICE Detector Installation mid 2008 Complete: ITS, TPC, TOF, HMPID, FMD, T0, V0, ZDC, Muon arm, Acorde Partial installation: 1/5 PHOS 4/18 TRD 9/48 PMD 0/6 EMCAL ~ 40% DAQ/HLT ALICE Status Installation targets met by mid 2008 April 08 CERN-Korea J. Schukraft

24 April: Insertion of final TOF super module April 08 CERN-Korea J. Schukraft

Installation of final muon chamber April 08 CERN-Korea J. Schukraft

Installation 1st PHOS module April 08 CERN-Korea J. Schukraft

Formal end of ALICE installation July 2008 April 08 CERN-Korea J. Schukraft

Data Taking & Commissioning Comissioning runs (24/7) Cosmics I (2 weeks, Dec 2007) local (individual detectors) and start of global (several detectors) commissioning Cosmics II (3 weeks, Febr/Mar 2008) local/global commissioning, first few days of alignment ‘test’ run, magnet commissioning Cosmics III (since May 2008 continuous operation 24/7) global commissioning, calibration & alignment production runs Injection tests TI2 dump in June , injection tests August, first circulating beam September observed very high particle fluxes during dumps and even during injection through ALICE 10’s to 1000’s of particles/cm2 with beam screens in LHC and/or TI2 decided to switch off all sensitive detectors during injection April 08 CERN-Korea J. Schukraft

Injection tests SPD hits versus bunch intensity (beam through ALICE) FMD event display (1 bunch through ALICE, > 100 000 hits) FMD hits versus SPD hits (beam through ALICE) SPD/SSD, Sunday, 15.6 Dump on TED April 08 CERN-Korea J. Schukraft

First beam 10th September SPD hits on 10.9.2008, shortly after 9 am V0 hits on 10.9.2008, shortly after 9 am April 08 CERN-Korea J. Schukraft

Luminosity monitor (V0) Double turn, beam 1 back at point 2 ! Single turn April 08 CERN-Korea J. Schukraft

First interactions 12th September Circulating beam 2: stray particle causing an interaction in the ITS ITS tracks on 12.9.2008 7 reconstructed tracks, common vertex April 08 CERN-Korea J. Schukraft

TPC Commissioning TPC up and running since end 2007 chamber+FC, gas system, cooling, FEE, Laser, DCS, DAQ, HLT,… noise reduction: modify PS (some occasional excess noise remains in outer parts) TDR: s ~ 1 measured: 0.7-0.8 April 08 CERN-Korea J. Schukraft

TPC Performance First preliminary results from cosmics Momentum Resolution (uncalibrated) First preliminary results from cosmics dE/dx resolution (PPR goal: ~ 5.5%) < 6% pt resolution (PPR goal: ~ 5% @ 10 GeV) ~ 10% @ 10 GeV w/o calibration Particle Identification April 08 CERN-Korea J. Schukraft

Planning Until mid October Medium term (until LHC restart spring 2009) continue cosmic running & consolidation of online software for ~ 3 weeks Medium term (until LHC restart spring 2009) ‘shutdown mode’, start with activities planned for winter shutdown re-arrange cabling on mini-frame (ITS,TPC) to allow better access to electronics major activity, requiring > 4 months of work both underground & surface detector consolidation TPC capacitors; recover some ITS modules, improve SPD cooling, … detector installation (TRD, PHOS, PMD, EMCAL), … 3 PHOS, 8 TRD modules, 2 EMCAL modules, complete PMD Long term: complete detector PMD (2008), DAQ/HLT(2009),TRD (2009), PHOS (2010/11), EMCAL (2010/11) April 08 CERN-Korea J. Schukraft

2009 Construction Budget

Kangnung/Sejong: fully paid: 100 k Common Fund, C&I Contributions 1997 - 2008 Unit: kCHF Cutoff date: 30 October 2008 *) Modified by MoU Addendum **) Balance = Funds received - Funds due Institute Fee: Kangnung/Sejong: fully paid: 100 k Yonsei: 17 k paid, 33 k in 2008/9 June 26, 2018 19 19

M&O A: M&O cat. A invoices/income 2002 - 2008 closing date: 30.10.08 ‘02-’08: fully paid (CHF)

PhD & equivalent survey 2009 21 21

Invoices/Contributions 2009 Unit: CHF Closing date: 30.10 2008 M&O A: 2009 invoice: Korea KICOS: 78.7 k CHF (forecast: 78.9) Korea Yonsei: 26.2 k CHF 22 22

M&O B M&O MoU: “For Category B, the cost shall be shared by the Funding Agencies and Institutes concerned in a manner that the Collaboration shall propose to the RRB”

2009 M&O B sharing (kCHF)

Summary Installation: Commissioning and initial calibration/alignment met all installation goals by mid 2008 Commissioning and initial calibration/alignment went rather well, sometimes even better than expected (e.g. TPC, SPD alignment + trigger) some (mostly minor) hickups / problems (noise, lost channels) / bug fixing to be improved: access to TPC for repairs/FEE exchanges cooling flow of SPD Detector performance better – within - very close to specs (at least as far as could be verified with cosmics) 12/11/2008 25th RRB J. Schukraft