FCAL Reconstruction MIN BLOCK 04/24/2012

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svn rev 9031 comprised three related changes:

  • Change the default value of the MIN_CLUSTER_BLOCK_COUNT parameter from 2 to 1, allowing DFCALCluster objects to be formed from a single block FCAL hit.
  • Update non-linear energy correction coefficients for this change.
  • Add a loose timing cut (+-5 ns) at the DFCALShower stage to cut down on additional clusters from EM background that this change will cause.

Single photon sample

  • black points: svn 8951
  • red points: svn 9031

SinglePhotonFCAL.recon eff.svn8951+svn9031.png

SinglePhotonFCAL.sigma E err.svn8951+svn9031.png

b1pi sample

50,000 b1pi events. EM beam background ON.

Thrown photons:

PhotonEvsTheta thrown FCAL Feb12.png

Reconstructed photons (after clusters matched to charged tracks have been rejected, but before any other cuts):

svn rev 8951:

PhotonEvsTheta recon FCAL.svn8951.png

svn rev 9031:

PhotonEvsTheta recon FCAL.svn9031.png

efficiency for unconverted photons

Photon FCAL recon eff.svn8951+svn9031.png