GlueX Offline Meeting, June 29, 2011

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GlueX Offline Software Meeting
Wednesday, June 29, 2011
1:30 pm EDT
JLab: CEBAF Center F326

Agenda

  1. Announcements
    1. Status of alpha release of CCDB: Dmitry
    2. Geant4 Tutorial: Mark
    3. danaevio and rawevent plugins, translation tables: Elliott
  2. Review of minutes from the last meeting: all
  3. Non-reproducible results: Will
  4. Restructuring particle classes: Paul M.
  5. Action Item Review: all
  6. Review of recent repository activity: all

Communication Information

Telephone

To connect by telephone:

  1. dial:
  2. enter access code followed by the # sign: 3421244#

Video Conferencing

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-2Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-2Q/ . You have to be a member of the "halld" Unix group to do this.

Minutes

present jlab mark simon dmitry david hovanes beni paul carl eugene iu matt kei cmu curtis will regina

  1. Announcements
        1. Status of alpha release of CCDB: Dmitry

last time visiting worked on ccdb, calibration database heading toward first alpha release • low level api is done • make system done • jana integration to do • ccdb user interface not working • user api, but not jana a goal

Elliott: comment, clas12 is interested. wants it in the 12 GeV repository DAve: checkouts from 12 GeV

        2. Geant4 Tutorial: Mark
        3. danaevio and rawevent plugins, translation tables: Elliott 

heads up danaevio plug-in raw hit objects and reconstructed objects, generates evio tree that includes representation of those objects can be serialized, can be sent as a messge, can be printed paul will be testing this last feature

rawevent plug-in : data acquisition will write raw data from dana objects, list of crate slot channels, they make the structure and write to disk, need to take a hit, bar paddle and turn to crate slot channel would like to do it realistically question: is someone collaboration doing that serialization should be compatible with named pipes in new approach from Richard, this will be used translation tables

david: electromagnetic background , richard cannot reproduce, david can

 /group/halld/

lockf a pointer , ongoing problem , in mantis

  2. Review of minutes from the last meeting: all


  3. Non-reproducible results: Will

different results each time, seems to be in reconstruction code four vectors different from run to run number of particles different, charged particles and photons

beni has seen photons come and go

paul third time

david not the same events

reproduced beni's result, stale data hypothesis,

  4. Restructuring particle classes: Paul M.

Matt : displaced vertex: ks, ks itself could be member of a vertex

  5. Action Item Review: all
         * Recently Resolved
         * Outstanding Items 
  6. Review of recent repository activity: all 

eugene

turning part o tracker off for hardware problems • can be have a gsimko for gluex • do we have a tool to say that hits should be ignored? no is there any simulation of in-effiency

mark needs to poke people