Difference between revisions of "HDGeant4 Meeting, July 20, 2018"
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# [https://github.com/JeffersonLab/HDGeant4/issues Issues on GitHub] (all) | # [https://github.com/JeffersonLab/HDGeant4/issues Issues on GitHub] (all) | ||
# Meeting Schedule | # Meeting Schedule | ||
+ | |||
+ | == Notes == | ||
+ | |||
+ | Present: | ||
+ | * ''' FSU: ''' Sean Dobbs | ||
+ | * ''' JLab: ''' Alex Austregesilo, Thomas Britton, Mark Ito (chair), Justin Stevens, Simon Taylor, Beni Zihlmann | ||
+ | * ''' Regina: ''' Zisis Papandreou | ||
+ | * ''' UConn: ''' Richard Jones | ||
+ | |||
+ | There is a [https://bluejeans.com/s/PCm4D/ recording of this meeting] on the BlueJeans site. Use your JLab credentials. | ||
+ | |||
+ | === Review of notes from last time === | ||
+ | |||
+ | * [[HDGeant4_Meeting,_July_6,_2018#Notes|Notes]] were reviewed | ||
+ | |||
+ | === Review of first round of simulation results === | ||
+ | |||
+ | * Thomas showed [https://halldweb.jlab.org/gluex_sim/G3G4_Comparisons/ver01/ list of plots]. | ||
+ | ** [https://mailman.jlab.org/pipermail/halld-offline/2018-July/003259.html email announcement of plots] | ||
+ | * Much time spent discussion of one plot: | ||
+ | |||
+ | [[File:Prot 4 15 Hist Reconstruction.png]] | ||
+ | |||
+ | * Sean: geometry could be the cause | ||
+ | * Richard: would like help isolating problem to simulation or to reconstruction | ||
+ | ** Thomas will put together a plug-in to explore | ||
+ | * Thomas: both FDC and CDC hits are missing | ||
+ | * question: are truth hits along real track trajectory | ||
+ | ** can be explored with event viewer | ||
+ | ** Beni volunteers | ||
+ | * This is an [https://github.com/JeffersonLab/HDGeant4/issues/54 issue on GitHub] | ||
+ | |||
+ | === Other Issues === | ||
+ | |||
+ | * Maria Patsyuk [https://groups.google.com/forum/#!topic/gluex-software/VOnAjfCf3r4 reported overlaps in the geometry] | ||
+ | ** Richard will work on this | ||
+ | * Richard: issues with roll-your-own event generators | ||
+ | ** interaction z and t are correlated by machine bunch structure | ||
+ | ** decay of long-lived particles can lead to double counting (parent and daughter particles both appear in final state) | ||
+ | ** [added in press] Richard wrote [https://halldweb.jlab.org/wiki/index.php/Guide_to_Monte_Carlo_event_timing_and_detached_vertices_in_HDGeant/4 new wiki page describing best practices]. | ||
+ | *** There is a [https://github.com/JeffersonLab/HDGeant4/issues/55 related issue on GitHub] | ||
+ | * Sean added an additional plot on the [https://github.com/JeffersonLab/HDGeant4/issues/10 time shift in FCAL showers issue]. He sees a difference in hit times vs. shower times. | ||
+ | |||
+ | === Meeting Time === | ||
+ | |||
+ | No one objects to meeting on Tuesdays at 2 pm, every other week. |
Latest revision as of 12:54, 21 July 2018
HDGeant4 Meeting
Friday, July 20, 2018
10:00 am
JLab: CEBAF Center, A110
BlueJeans: 968592007
Contents
Agenda
- Review of notes from last time
- Review of first round of simulation results.
- Issues on GitHub (all)
- Meeting Schedule
Notes
Present:
- FSU: Sean Dobbs
- JLab: Alex Austregesilo, Thomas Britton, Mark Ito (chair), Justin Stevens, Simon Taylor, Beni Zihlmann
- Regina: Zisis Papandreou
- UConn: Richard Jones
There is a recording of this meeting on the BlueJeans site. Use your JLab credentials.
Review of notes from last time
- Notes were reviewed
Review of first round of simulation results
- Thomas showed list of plots.
- Much time spent discussion of one plot:
- Sean: geometry could be the cause
- Richard: would like help isolating problem to simulation or to reconstruction
- Thomas will put together a plug-in to explore
- Thomas: both FDC and CDC hits are missing
- question: are truth hits along real track trajectory
- can be explored with event viewer
- Beni volunteers
- This is an issue on GitHub
Other Issues
- Maria Patsyuk reported overlaps in the geometry
- Richard will work on this
- Richard: issues with roll-your-own event generators
- interaction z and t are correlated by machine bunch structure
- decay of long-lived particles can lead to double counting (parent and daughter particles both appear in final state)
- [added in press] Richard wrote new wiki page describing best practices.
- There is a related issue on GitHub
- Sean added an additional plot on the time shift in FCAL showers issue. He sees a difference in hit times vs. shower times.
Meeting Time
No one objects to meeting on Tuesdays at 2 pm, every other week.