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Outline:• Update on muon/dimuon AOD production (R. Arnaldi/E. Scomparin)• Other ongoing activities:

• MUON correction framework (X. Lopez)• MUON productions in PDC09 (N. Bastid)

presentations can be found at:• http://indico.cern.ch/conferenceDisplay.py?confId=54589• http://indico.cern.ch/conferenceDisplay.py?confId=52721

N. Bastid (LPC Clermont-Fd) ALICE Offline Week, CERN, March 17 th, 2009

PWG3 Analysis Code Status for the Forward Muon Spectrometer

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Update on muon/dimuon AOD production (I)

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Update on muon/dimuon AOD production (II)

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Update on muon/dimuon AOD production (III)

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Update on muon/dimuon AOD production (IV)

note:technical compatibility problems due to the Muon/Dimuon AODproduction together w/ the other analysis tasks are solved

selection of muon events based on AOD tag files: AliAODTagCuts::SetNFWMUONRange()

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Update on muon/dimuon AOD production (V)

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Update on muon/dimuon AOD production (VI)

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Update on muon/dimuon AOD production (VII)

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Status of the MUON correction framework (I)

X. Lopez

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Status of the MUON correction framework (II)

• in progress: analysis task for single muons (AliCFMuonSingle.cxx (.C)) fit functions to extract resonances• to-do: CF for dimuon continuum

(to be moved in PWG3/muon)

X. Lopez

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MUON productions within PDC09 concerning pp @ 10 TeV (I)

proposal: • minimum bias production• several productions with dimuon trigger @ generation: different conditions for alignment (ideal / residual mis-alignment / full mis-alignment)& secret dead maps / cross-sections / polarization

motivations: • main goal is still to test:

• the whole analysis framework including the production & analysis of muon/dimuon AOD

• the HLT (not present in previous productions)

• min. bias production: measurement of charm & bottom x-section in a wide pt range (up to about10 GeV/c) & including the low pt range ( ← & K needs to be subtracted) • dimuon productions: J/ yield & efficiency measurement charm & bottom x-section measurement in the US dimuon channel

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MUON productions within PDC09 simulation framework (II)

full simulation: generation reconstruction production of ESDs• cocktail (AliGenMUONCocktailpp class):

• charmonia & bottomonia according to parameterizations• open heavy flavours from fast generator (AliGenCorrHF class)• min. bias PYTHIA event (kPyMb, heavy flavour production switched off)

• detector configuration: MUON + ITS (SPD) + VZERO + FMD• HLT included both in simulation & reconstruction• standalone MUON trigger• LuT: all pt & low pt

• geometry: ideal / residual mis-alignment / full mis-alignment • secret x-sections for HF & quarkonia and secret dead maps for tracking & trigger & polarization• trigger @ generation for dimuon productions (at least 2 in spectro. w/ pt > 0.5 GeV/c)

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MUON productions within PDC09 for pp @ 10 TeV: status (III)

• fast generator of heavy quark pairs not yet available: should be ready by end of April (S. Grigoryan @ LPC in April)• resonances: parameterization available for J/ (see S. Grigoryan talk @ Oct. PWG3-MUON-EVO) & needs to be done for other quarkonia, x-sections have been calculated

• strategy:• wait until end of April in order to have parameterizations for both open heavy flavours and quarkonia or • use PYTHIA (charm x-section underestimated, bottom x-section overestimated) and ready to ask for dimuon productions one will need to commit a new version for AliGenMUONCocktailpp,AliGenCorrHF & AliGenMUONlib classes a new aliroot version is needed for the final productions on the GRID

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MUON productions within PDC09requirements for dimuon prod. (IV)

• cocktail: PYTHIA (kPyMbMSEL1) + quarkonia (param. @ 10 TeV for J/)• trigger @ generation: at least 2 with pt > 0.5 GeV/c (in spectro. acceptance)

12350 events(3.68.108 Pythia events)8236 +-

J/ ’ ’’ ’’

(b) 39.14 6.04 0.658 0.218 0.122

(res.)10 = (QQ)10 x (res.)14 / (QQ)14

requirements (for each dimuon production): • statistics: 2.106 dimuon events (~ 1.105 J/, i.e. 1 month at L = 1030 cm-2 s-1), 40 runs (1 run = 1.103 sub-runs & 1 sub-run = 50 events) • CPU-time: ~7.2.103 days (~ 1 week w/ the GRID) • storage: ~0.5 TB (archive of files needed for analysis)

cross-sections

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Backup slides

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MUON productions in PDC09

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Backup slides