Muon reconstruction in release 15.0.0.2

D. Adams
April 2009

Release 15.0.0.2

For other releases, see the complete list of results.

Issues were last reported in 14.2.22.1.

1. Hole counts are absent. Verify this.

  • Hole counting is not enabled in 15.0 reconstruction.

    2. Muid combined fit chi-square does not include the inner track. Staco includes inner, outer and match.
  • Users should add Muid inner and combined chi-squares (and DOF's) to get comparable values.
  • This is a feature, rather than a bug.
  • Same in 14.2.20.

    3. The calorimeter tagging algorithms have low efficiency (10-60% for |eta| 0-2.5) in single muon events.
  • Bug report: 43569

    4. Muid extrapolated and combined muons are absent in 15.0.0.2 but not in 15.0.0.1.
  • Bug report: 48943
  • Fixed in 15.0.0.3.

    5. There are inner detector r0 resolution problems in 15.0.0.1 and 15.0.0.2 due to problems with the FadsField package. It is expected these will be fixed in 15.0.0.3.

    6. MuGirl have no extended track fits while authors expect such fits for almost

    7. In 15.1 and 15.2 there are problems with Muid reconstruction (low efficiency) for |eta|>2. This should be fixed in 15.3.

    Graphical summaries

    Plots for 07apr physics validation meeting
        New reco, digi and sim (G492)
        AtlfastII

    T1 history

    dladams@bnl.gov