General Meson SF Meeting Summary 1/20/22

PARTICIPANTS: Carlos Ayerbe Gayoso, Garth Huber, Love Preet, Bill Lee, Tanja Horn, Richard Trotta, Tobias Frederico, Muhammad Junaid, John Arrington, Rolf Ent, Douglas Higinbotham, Shujie Li, Patrick Barry, David Richards

DISCUSSION OF 2022 PLANNING

• Overarching thought: emphasis on how QCD phenomenology and modeling, QCD continuum, LQCD and data all can work together to solve questions on meson structure

THEORY TALKS

• Discussion of the proposal to place more emphasis on theory talks in 2022

• short presentation on what measurements or kinematic regions of a measurement would be most valuable

• 20-30min + questions
• informal seminar

• show piece that is holding up progress on theory side
• discussion
• anticipated format: 20-30min presentations followed by questions - informal seminar

• Possible topics:

• Mass sum rule of the pion
• Impact of lattice on global fitting (Patrick done with these studies - which observables are of interest etc.)
• Challenges of meson physics from lattice point of view
• Pion TMD, e.g., using low energy DY, can these low PT have impact on collinear pion PDF too, EIC - pT dependence of pion and/or kaon further discussions
• Pion GPD
• Kaon structure functions and form factor
• Statistical models for pion structure functions
• ...

EXPERIMENTAL ACTIVITIES

• Kaon Form Factor at EIC - feasibility studies (Love Preet, URegina)

• Pion Structure Functions model optimizations (Richard Trotta, CUA)

• Kaon Structure Functions model optimizations (Rachel Montgomery, Glasgow U.)

• Revisit simulation to guide the design - different interaction regions - need software to be ready

• Reconstruction setup in Geant4 simulations (John Arrington, Shujie Li, LBNL)

• Simulation software updates and in particular Fun4All (Bill Li, W&M)

NEXT MEETING: FRIDAY 25 FEBRUARY AT 12:00PM ET

AGENDA

• First Theory talk on: Impact of lattice on global fitting (Patrick Barry)
• Discussion
• Updates
• Other