Public minutes of 119th SB meeting on March 2nd, 2020

Present: Marc Verderi, Makoto Asai, Hisaya Kurashige, Alex Howard, Gabriele Cosmo, Ben Morgan, Daren Sawkey, Soon Yung Jun, Ivana Hrivnacova, Alberto Ribon, Vladimir Ivantchenko, Susanna Guatelli, Koichi Murakami, Laurent Garnier, Luciano Pandola, Dmitri Kostantinov (Gunter’s deputy - second part only)

Excused: Gunter Folger, Sebastien Incerti, Mihaly Novak, Witek Pokorski, John Allison (OB Liaison)

Please note : This is a transitional SB meeting

Part 1 - by the current SB membership

1. Approval of the election of WG leadership

  • Note:

    • first name : working group coordinator
    • second name : deputy coordinator
    • other name(s) : additional representative(s)
    • Names in parentheses are delegates for coordinators’ absence
    • Bold names are new SB members / deputies
  • Run, Event and Detector Response
    • Makoto Asai, (Jonathan Madsen)
  • Tracking
    • Takashi Sasaki, (Shogo Okada)
  • Particles and Track
    • Hisaya Kurashige, (Shogo Okada)
  • Geometry and Transport
    • Gabriele Cosmo, (John Apostolakis)
  • Generic Processes and Materials
    • Marc Verderi, (Vladimir Ivantchenko)
  • Electromagnetic Physics
    • Vladimir Ivantchenko, Sebastien Incerti, Luciano Pandola, Daren Sawkey
  • Hadronic Physics
    • Alberto Ribon, Dennis Wright, Gunter Folger
  • Persistency
    • Gabriele Cosmo, (Witek Pokorski)
  • User and Category Interfaces
    • Koichi Murakami, (Hajime Yoshida)
  • Visualisation
    • Laurent Garnier, (Joseph Perl)
  • Physics List
    • Gunter Folger, (Dmitri Konstantinov)
  • Testing and Quality Assurance
    • Soon Yung Jun, (Gunter Folger)
  • Software Management
    • Ben Morgan, (Gunter Folger)
  • Documentation Management
    • Alex Howard, (Daren Sawkey)
  • Basic and Extended Examples
    • Ivana Hrivnacova, (Alex Howard)
  • Advanced Examples
    • Susanna Guatelli, (Francesco Romano)
  • Ex-officio

    • Spokesperson : Makoto Asai
    • Deputy spokesperson : Marc Verderi
    • Release coordinator : Gabriele Cosmo
    • Technical Forum chair : Andreas Morsch
    • Technical Forum deputy chair : Bruce Faddegon
    • Oversight Board liaison : John Allison
  • Election process and WG leadership approved by the transitional SB

Part 2 - by the new SB membership

1. Regular items

  • The open requirements, pending actions, status of long open bug reports, as well as physics and computing performance monitoring were reviewed
  • Computing performance:
    • ~2% improvement in ref-02 might be connected with the Urban multiple-scattering model modifications
      • It may reduce number of steps of e- and/or indicate systematic uncertainty of CPU measurements due to change of simulation history
    • The other candidate contributing to the boost are also improvements implemented in G4Track introduced in ref-02

2. 2020 work plan

  • The 2020 work plans have been reported by each working group and reviewed. Work plans are published on the web in the various Working Groups pages. Collaboration-wide development items will be summarized and posted on the web soon
  • The next Technical Forum (to be scheduled soon) will include discussions on the proposed work plan

3. Spokesperson election

  • Forming the Candidate Nomination Team (CNT)
    • Three volunteers : Makoto Asai (chair), Ben Morgan, Luciano Pandola
    • CNT membership was approved
  • ​Election time table is agreed.
    • Nomination phase : 2-3 weeks
    • Nominee(s) endorsement by SB : 1 week
    • Election phase : 2-3 weeks
  • CNT will announce the election procedure to the Collaboration

4. AOB

4.1 Recent events

  • None to note.

4.2 Near future events

Meeting Date

Monday, March 2, 2020 - 12:00