GlueX-Collaboration-Feb-2025

GlueX Winter 2025 Collaboration Meeting

February 19-21, 2025 Hybrid

The GlueX Collaboration Meeting will be held jointly online and in person at Jefferson Lab. The meeting will be held in CEBAF Center F113.

To connect to the meeting, please go to the listing of Zoom meetings on the private Wiki and select the GlueX/Hall D Biweekly Meeting link at the top of the list.

Registration

Everyone participating in the collaboration meeting is required to register at the Registration Page. There is a registration fee of $60 for those attending in person at Jefferson Lab. There is no fee for remote participants.

• Current List of Participants

Remember that all on-site participants must have an active visit registration approved one week before the meeting. The portal for site access is here. Sign in with your JLab user ID.

Special Event

A workshop on artificial intelligence and machine learning is planned for Tuesday, February 18, the day before the start of the collaboration meeting. Please contact Igal Jagle for more information.

Agenda

Wednesday, February 19

• Session I: Opening and Experiment Status (Chair: Malte)
  • 13:30 (10+5): Opening Remarks (Matt Shepherd)
  • 13:45 (25+5): Hall D Status and Summary of ERR (Eugene Chudakov)
  • 14:15 (15+5): Hall D Engineering Report (Tim Whitlatch)
  • 14:35 (20+5): Status of CEBAF (Edy Nissen)
  • 15:00 (10+5): Run Coordination Update (Alexandre Deur)

• Break 15:15 - 15:45

• Session II: Hardware Updates (Chair: Matt)
  • 15:45 (15+5): Status of FCAL2 Lead Glass (Malte Albrecht)
  • 16:05 (25+5): Status of ECAL and FCAL2 Trigger (Sasha Somov)
  • 16:35 (20+5): Status of FCAL2 Simulation and Reconstruction (Simon Taylor)
  • 17:00 (20+5): TRD prototype for GlueX-II and path to full detector (Lubomir Pentchev)
  • 17:25 (15+5): Report from the Collaboration Board (Naomi Jarvis)

Thursday, February 20

• Session III: Software, Calibration, Production, and Monitoring
  • 9:00 (15+5): Software Status (Alex Austregesilo)
  • 9:20 (15+5): Transition to JANA2 (Raiqa Rasool)
  • 9:40 (15+5): Calibration, Production and Online Monitoring (Naomi or Igal)
  • 10:00 (15+5): Status of Hydra for the upcoming run (Torri Jeske)

• Break 10:20-10:50

• Session IV: Dilepton and Rare with a touch of Software
  • 10:50 (20+5): γp→D^(*)Λ_c upper limit (Maoqiang Jing)
  • 11:15 (20+5): χ_cJ Photoproduction (Lubomir Pentchev)
  • 11:40 (20+5): K_SK_Lhigh mass states (Gabriel Rodriguez Lineara)
  • 12:05 (15+5): χ² Comparisons with D-Selector Output (Jake Serwe)

• Lunch: 12:25 - 13:30

• Session V: Amplitude Analysis I
  • 13:30 (20+5): ππ Moments (Boris Grube)
  • 13:55 (20+5): Study of γp→π⁰π⁺n (Colin Gleason)
  • 14:20 (20+5): Study of γp→η’π⁰ (Zach Baldwin)
  • 14:45 (20+5): Kπ Resonances (Hao Li)
  • 15:10 (20+5): Pole structure of Λ States (Reinhard Schumacher)

• Break 15:30 - 16:00

• Session VI: Amplitude Analysis II
  • 16:00 (20+5): Vector-Pseudoscalar Moments (Kevin Scheuer)
  • 16:25 (15+5): Study of γp→ωπ^-Δ⁺⁺(Amy Schertz)
  • 16:45 (20+5): Study of γp→ωη (Edmundo Barriga)
  • 17:10 (20+5): Study of γp→φη (Darius Darulis)
  • 17:35 (15+5): Paper Vote: φ SDMEs measured with φ→K_SK_L (Farah Afzal)

Friday, February 21

• Session VII: Physics Overview and Future Plans (Chair: Justin)
  • 9:00 (20+5): Report from the Physics Coordinator (Malte Albrecht)
  • 9:25 (21+9): PAC proposal: 4 GeV Electrons in 2026 (Farah Afzal, Peter Hurck, and Igal Jagle)
  • 9:55 (20+5): PAC proposal: Observables in Photoproduction from Tensor Polarized Deuterium (Mark Dalton)
  • 10:20 (10): PAC proposal discussion and GlueX Endorsement plans

• Break 10:30-11:00

• Session VIII: Cross Sections
  • 11:00 (20+5): Update on SDHEP: γp→γπ⁰p (Shelby Arrigo)
  • 11:25 (15+5): Beam Polarization from Bethe-Heitler (Andrew Schick)
  • 11:45 (15+5): Status of ω→π⁺π^-π⁰ Dalitz analysis (Saheli Rakshit)
  • 12:05 (15+5): Differential Cross Section of γp→ωΔ⁺ (Jia Jia Hodgson)

• Lunch: 12:25 - 14:00
• Hall D Walkthrough: 12:40 - 13:50 contact Mark Dalton
  • Regsitration Link

• Session IX: Cross Sections and Primakoff Production
  • 14:00 (20+5): Progress toward Cascade Cross Section (Jesse Hernandez)
  • 14:25 (15+5): Status of Primakoff Cross Section with η→γγ (Drew Smith)
  • 14:45 (15+5): Extraction of the Primakoff Yield (Igal Jagle)
  • 15:05 (15+5): Selection Criteria for η→3π (Viviana Arroyave)

• Break: 15:25 - 16:00

• Session X: Additional Topics
  • 16:00 (15+5): Charged Pion Polarizability (CPP) Overview (Albert Fabrizi)
  • 16:20 (15+5): Neutral Pion Polarizability (NPP) Overview (Ilya Larin)
  • 16:40 (15+5): a₀ beam asymmetry using a₀→ηπ⁰ (Marshall Scott)
  • 17:00 (20+5): Differential Cross Section of γp→a₂^-Δ⁺⁺ using a₂^-→K_SK^- (Kevin Saldaña)
  • 17:25: Closing