Rerunning MuonID in DaVinci


When running default DaVinci setting, muon id info is already stored on ProtoParticles read from input DST. MuonPIDs are recreated from this information. However Muon Tracks holding muon hit information (stored in Rec/Track/Muon) cannot be recreated from ProtoParticles. Unfortunately many DSTs do not have Muon Tracks data saved (anything produced with Brunel version earlier than v31r7). To recreate Muon Tracks, MuonID must be re-run in DaVinci. This conflicts with muon id info already stored on ProtoParticles, thus the latter must be updated. If you are using older DC06 MC data you must apply this fix (re-processed DC06 data and 2008 MC are fine).

In DaVinci versions v22r0p2 and higher this is done automatically (DaVinci takes different actions depending on input DST). For DaVinci versions v22r0 and earlier you must re-run MuonID yourself (see below).

To properly re-run MuonID and update muon id info stored in ProtoParticles follow these steps:

  1. You need to download UpdateMuonPIDInProtoP algorithm and compile it in your DaVinci project area:
    • Download attached UpdateMuonPIDInProtoP.tar to your cmtuser/DaVinci_X directory.
    • Go to that directory and extract the content: "tar -xvf UpdateMuonPIDInProtoP.tar"
    • Compile it: "cd UpdateMuonPIDInProtoP/v1r0/cmt; cmt config; gmake"
  2. Include in your DaVinci option file RedoMuonID.opts also attached to this page.

-- TomaszSkwarnicki - 01 Oct 2007, 29 Jan 2009

  • UpdateMuonPIDInProtoP.tar: Tar file with UpdateMuonPIDInProtoP algorithm (since DaVinci version v22r0p2 and higher this algorithm is CVS in Rec/GlobalReco library - thus you can also get it from the CVS repository).

  • RedoMuonID.opts: Options to be added to DaVinci option file to rerun MuonID.
Topic attachments
I Attachment History Action Size Date Who Comment
Unknown file formatopts RedoMuonID.opts r2 r1 manage 0.8 K 2009-01-20 - 22:26 TomaszSkwarnicki Options to be added to DaVinci option file to rerun MuonID.
Compressed Zip archivetar UpdateMuonPIDInProtoP.tar r1 manage 20.0 K 2007-10-01 - 20:30 TomaszSkwarnicki Tar file with UpdateMuonPIDInProtoP algorithm
Edit | Attach | Watch | Print version | History: r4 < r3 < r2 < r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r4 - 2009-01-29 - TomaszSkwarnicki
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    LHCb All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2020 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback