Difference between revisions of "GlueX-Collaboration-May-2020"

Revision as of 11:13, 12 May 2020

GlueX Collaboration Meeting

May 11 to 15, 2020 Virtual Meeting Online

The May GlueX Collaboration Meeting will be held online.

Registration

Everyone participating in the collaboration meeting is required to register even though the meeting is virtual. Please visit the Registration Page. You are advised to use the meeting start and and end dates as the arrival and departure dates. There is no fee for this meeting.

To see who else will be attending either in person or via electronic media, please see the

Current List of Participants Page

Connecting

Join from computer or mobile: https://iu.zoom.us/j/93157147171

Meeting ID: 931 5714 7171

IU videoconferencing equipment: 26 931 5714 7171

Videoconferencing equipment outside of IU: SIP: 93157147171@zoomcrc.com

H.323:

• 162.255.37.11 (US West)
• 162.255.36.11 (US East)
• 221.122.88.195 (China)
• 69.174.57.160 (Canada)

Agenda

Please find a draft agenda below. We will plan to have plenary format meetings before lunch with smaller, informal meetings in the afternoon

Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.

Monday, May 11

Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.

Morning

• Overview and recent run (Chair: Curtis)
  • 9:00 - 9:10: Opening remarks (Matt)
  • 9:10 - 9:35: Hall D status (Eugene)
  • 9:35 - 10:00: Summary of spring run and accelerator performance (Alexandre)
  • 10:00 - 10:30: Status of engineering and detector upgrade construction including CPP and FCAL-II (Tim)

• Detector working group reports (Chair: Sean)
  • 11:00 - 11:25: Calorimetry (Zisis)
  • 11:25 - 11:50 Tracking (Millepede alignment) (Keigo)
  • 11:50 - 12:15: DIRC+Track extrapolations (Justin)
  • 12:15 - 12:40: Timing and Global PID (Simon)

Afternoon

• 1:30: Collaboration Board Meeting (chair: Reinhard) [Zoom (link sent by email)]
• 3:00: Tracking, DIRC and PID systematics discussion (discussion leader: Justin) [BlueJeans: 846453895]
  • PID systematic studies for SDMEs, cross sections, etc.
    • Followup on workfest action item: analysis launch with looser timing and PID cuts Proposed JANA configuration. Please check for completeness.
    • Can we select a single dataset for these studies?
  • Standardizing the approach for PID cuts
    • Timing Δt cuts are most commonly used; how well do data/MC resolutions match?
    • Several tools being developed: PIDFOM, Machine learning classifiers, etc. How do we converge?
      • PID information in Analysis TTree format
  • Discussion of continued DIRC improvements (workfest action items)
    • Run-dependent monitoring and time resolutions (Bill)
    • Alignment studies: track rotations compared to survey
    • Direct vs Reflected photon resolutions
• 4:00: FCAL-II construction status and discussion (Sasha) [BlueJeans: 907185247]
  • Status of the construction
  • Discussion

Tuesday, May 12

Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.

Morning

• Beamline and Analysis Systematics (Chair: Justin)
  • 9:00 - 9:30: Accelerator Update (Mike McCaughan)
  • 9:30 - 10:00: Beamline overview and accidental subtraction systematics (Richard)
  • 10:00 - 10:30: Summary of MC modeling of overall detector efficiency and run-period dependence (Sean)

• Cross sections and beam asymmetries (Chair: Matt)
  • 11:00-11:30: Summary of remaining beam asymmetry measurements (Zisis)
  • 11:30-12:00: Cross section measurements at all energies for η, η', and π⁰ (Justin)
  • 12:00-12:30: Vector meson cross sections and SDMEs (Alex)

Afternoon

• 1:30: Additional analysis reports related to cross sections and SDMEs (Sean) [BlueJeans: 115815824]
  • 1:30 - 2:00: Discussion of SDME systematic uncertainties (Alex)
  • 2:00 - 2:30: Discussion of eta pipi systematics (George)
  • 2:30 - 3:30 - Discussion of G4 "CUTS" card usage in previous simulations and impact on timing cuts, photon energy, etc. (All)
    • Delta++ eta pi- (Colin)
    • Sigma0 K+ (Nilanga)
    • Others?

Wednesday, May 13

Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.

Morning

• Preparations for the PAC and future runs (Chair: Curtis)
  • 9:00 - 9:20: Neutral pion polarizability (Elton)
  • 9:20 - 9:40: Charged pion polarizability (Rory)
  • 9:40- 10:00: GDH sum rule (Alexandre)
  • 10:00 - 10:30: Discussion

• Preparations for the PAC and future runs (Chair: Justin)
  • 11:00 - 11:20: Updates to JEF physics objectives (Liping)
  • 11:20 - 11:40: Plan for GlueX+JEF jeopardy submission (Matt)
  • 11:40 - 12:30: Discussion

Afternoon

• 1:30: PrimeEx-η technical session (Liping) [BlueJeans: 907185247]
  • 1:30 - 2:00: Preparations for 2021 run (Sasha)
  • 2:00 - 2:30: Detector alignment and calibration (Drew)
  • 2:30 - 3:00: Calorimeter status and calibrations (Igal)

Thursday, May 14

Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.

Morning

• Hybrid searches at GlueX (Chair: Matt)
  • 9:00 - 9:30: Lattice QCD and searches for hybrids (Jo Dudek)
  • 9:30 - 10:00: Joint Physics Analysis Center collaboration on hybrid observables and backgrounds (Adam Szczepaniak)
  • 10:00 - 10:30: Summary of GlueX hybrid search activities with emphasis on ηπ (Colin)

• Activities related to hybrid searches (Chair: Alex)
  • 11:00 - 11:30: Amplitude analysis of π⁰π⁰ (Annika)
  • 11:30 - 12:00: Overview of ηπ and η'π reconstruction and yields (Lawrence)
  • 12:00 - 12:30: b₁ cross section and ωπ amplitude analysis (Foda)

Afternoon

• 1:30: Additional analysis reports related to hybrid searches (Chair: Justin)
  • 1:30 - 2:00: Production of b₁Δ⁺⁺ (Amy Schertz)
  • 2:00 - 2:30: ηπ and η'π (Zach Baldwin)
  • 2:30 - 3:00: Amplitude analysis of η'π⁰ and "PWA Challenge" (Mariana)
  • 3:00 - 3:30: η'π event selection (Rupesh?)
  • 3:30 - 4:00: Status of topology surveys (?)
• 4:00: Discussion concerning action items for amplitude analysis tool development (organizer: Alex A.?)

Friday, May 15

Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.

Morning

• 9:00 - 9:30: Update on J/ψ production vs. E_γ using both J/ψ decay modes (Lubomir)
• Hyperons (Chair: Reinhard)
  • 9:30 - 10:00: Cascade production (Ashley)
  • 10:00 - 10:30: Production of baryon-antibaryon pairs (Hao)
  • 10:30 - 10:50: Radiative hyperon decays in γ p -> K⁺ Λ γ (Kevin)
• Summary and Closeout
  • 11:00 - 11:20: Report from the Collaboration Board (Reinhard)
  • 11:20 - 11:50: Physics coordinator report and summary (Sean)
  • 11:50 - 12:20: Discussion of what we have learned, action items, and near term milestones
  • 12:20 - 12:30: Closeout

Encore!

• 2:00: J/ψ discussion
  • Notes on Interpretation -- Igor