Reconstruction, May 19, 2009

From GlueXWiki
Revision as of 19:36, 18 May 2009 by Zisis (Talk | contribs)

Jump to: navigation, search

Time: 11:00 EST/10:00 CST

  • Connection: EVO: Room Booked under the GlueX Universe, called Reconstruction Meeting
  • Backup Plan: ESNET Number 8542553
  • Phone: (only if David launches the base bridge)
    • +1-800-377-8846 : US
    • +1-888-276-7715 : Canada
    • +1-302-709-8424 : International
    • then enter participant code: 39527048# (remember the "#")

Reconstruction To Do List

  1. Generation
    1. Use genr8 for a2 production
    2. Use Pythia for background generation after removing a2 → η π0 from the MC data stream
    3. Use a2 charge exchange production xsection vs pythia total xsection to estimate number of signal and noise events
    4. Skim off (hd_filter) the wanted events by cutting on the total neutral energy (> 6 GeV) but record the total number of events before skimming
  2. Analysis
    1. After pruning the Pythia events, check the generated vs. reconstructed energy in a plot.
    2. Look at the a2 mass peak - adjust cuts on the eta and pi0 masses then look at the effect on the different angular distributions (i.e. Gottfried-Jackson angles, etc.)
    3. look at difference between reconstructed and generated z position for less than 65 cm
    4. look at single photon reconstruction efficiencies
    5. adjust the error matrix for the BCAL (look in PID/DPhoton_factory.cc)
  3. Gather all relevant DocDB documents and cross section publications at one spot on the Wiki.

Documents to Review

Tentative Agenda

  1. Test EVO connection: Zisis will connect 10 minutes early; any other takers to flush out the connection?
  2. Review Reconstruction Plans in list above
  3. a2 cross section papers
  4. Discussion
  5. Blake's trip to Indiana

Minutes

Attendees: