Towards improved hadron femtography with hard exclusive reactions, edition IV, Jefferson Lab, 2025

Jul 28, 2025, 8:30 AM → Jul 31, 2025, 6:30 PM America/New_York

Alexandre Camsonne (JLab), Charlotte Van Hulse, Jianwei Qiu (JLab), Marie Boër (Virginia Tech)

This workshop is the fourth edition of the series, for which previous editions took place at Virginia Tech (2022), JLab (2023) and ECT* Trento (2024). We are welcoming you for this fourth edition at Jefferson Lab from July 28th-31st, 2025.

Our goal is to bring together theorists and experimentalists in hadronic physics to discuss recent progress and directions to improve our knowledge of hard exclusive reactions and interpretations such as hadron imaging. Each year emphasizes a "special topic" to which we are dedicating a full day and extra discussions. This year, we are particularly interested in fits and global simulations. We will discuss how to extract objects such as generalized parton distributions (GPDs) and gravitational form factors (GFFs).

Besides fits sensitve to GPDs and simulations, we will also discuss, among physics topics, Compton-like reactions (DVCS, TCS...), hard exclusive meson production, exclusive associated meson production, and exclusive studies in ultra-peripheral collisions. 

The workshop will take place in person at Jefferson Lab. Remote attendance is possible as an audience but we ask for all presentations to be in-person.

We will have a round table on a dedicated topic at the end of each day.

We encourage all those interested in this workshop to submit an abstract (deadline July 3d, 2025).

Sessions:

1. QCD fits
2. Software and simulations
3. Hard exclusive meson production
4. Compton-like reactions 
5. Hard exclusive reactions with multiple particles
6. GFFs, proton mass and pressure
7. Exclusive physics at high-energy colliders

 

Monday, July 28

9:00 AM → 9:30 AM Introduction / Welcome

9:30 AM → 10:30 AM DVCS and Compton-like reactions

10:30 AM → 11:00 AM coffee break

11:00 AM → 12:30 PM DVCS and Compton-like reactions

12:30 PM → 2:00 PM lunch break

2:00 PM → 4:00 PM Fits

4:00 PM → 4:30 PM coffee break

4:30 PM → 5:30 PM Round Table

5:30 PM → 7:00 PM Social: Reception

Tuesday, July 29

9:00 AM → 10:30 AM Fits

10:30 AM → 11:00 AM coffee break

11:00 AM → 12:30 PM Fits

12:30 PM → 2:00 PM lunch break

2:00 PM → 3:30 PM Fits

3:30 PM → 4:00 PM coffee break

4:00 PM → 5:00 PM Fits

5:00 PM → 6:00 PM Round Table

Wednesday, July 30

9:00 AM → 10:30 AM Exclusive reactions at high energy (colliders / UPC)

10:30 AM → 11:00 AM coffee break

11:00 AM → 12:30 PM Exclusive reactions at high energy (colliders / UPC)

12:30 PM → 2:00 PM lunch break

2:00 PM → 3:30 PM GFF, proton mass and pressure

3:30 PM → 4:00 PM coffee break

4:00 PM → 5:00 PM GFF, proton mass and pressure

5:00 PM → 6:00 PM Round Table

6:30 PM → 9:00 PM Social

Thursday, July 31

9:00 AM → 10:30 AM Simulations

10:30 AM → 11:00 AM coffee break

11:00 AM → 12:30 PM Simulations

12:30 PM → 2:00 PM lunch break

2:00 PM → 3:30 PM Hard exclusive meson production

3:30 PM → 4:00 PM coffee break

4:00 PM → 5:00 PM Hard exclusive meson production

5:00 PM → 6:00 PM Round Table

6:00 PM → 6:10 PM Closeout