MC4EIC 2025

Jul 9, 2025, 1:00 PM → Jul 11, 2025, 6:00 PM US/Eastern

F113 (CEBAF Center)

Frank Krauss (Durham University), Ilkka Helenius (University of Jyväskylä), Markus Diefenthaler (Jefferson Lab), Oleh Fedkevych (Georgia State University), Pavel Nadolsky (Michigan State University), Stefan Höche (Fermilab)

The 2025 edition of the MC4EIC workshop will take place at Jefferson Lab from July 9–11. Please note that the joint meeting of the EIC User Group and the ePIC collaboration will be held at the same location the following week. 

The primary focus of this workshop is to discuss the status of Monte Carlo event generators for the Electron-Ion Collider and their related experimental needs. Part of the workshop will include a Rivet hackathon, where participants will develop new Rivet analyses for ep and ed data. These analyses will then be used to enhance comparisons and constraints on event generators.

Topics to be covered:

• General-purpose event generators for electroproduction;  photoproduction, and diffractive processes; 
• Comparisons and tuning to relevant ep and ed data; 
• Modeling of radiative effects; 
• Specialized event generators and interfacing. 

Please register for the workshop to receive updates on the program and organizational details. 

Wed, July 9

1:00 PM → 3:00 PM MCEGs: Event generators for colliders

1:00 PM Welcome

1:10 PM Event Generators Overview and MC4EIC Recap

1:40 PM Discussion

1:50 PM Physics Requirements for MCEGs at the EIC

Speaker: Brian Page (Brookhaven National Laboratory)

2:20 PM Discussion

2:30 PM Herwig

2:50 PM Discussion

3:00 PM → 3:30 PM Coffee and tea

3:30 PM → 6:00 PM MCEGs: Event generators for colliders

3:30 PM Pythia

Speaker: Ilkka Helenius (University of Jyväskylä)

3:50 PM Discussion

4:00 PM Sherpa

Speaker: Max Knobbe (Fermilab)

4:20 PM Discussion

4:30 PM Rivet and the Broader Validation Ecosystem

Speaker: Christian Gutschow (University College London)

4:50 PM Compass and Hermes data

Thu, July 10

9:00 AM → 12:00 PM Validation: Analyses, projections and inputs

12:00 PM → 1:00 PM Lunch (On Your Own)

1:00 PM → 3:00 PM MCEGs: Specialized MCEGs

1:00 PM Dijet Photoproduction in POWHEG-Box

Speaker: Alexander Feike (Münster)

1:30 PM Madgraph5

2:00 PM TBA

2:20 PM TBA

2:40 PM TBA

3:00 PM → 3:30 PM Coffee and Tea

3:30 PM → 5:30 PM Validation: Analyses and comparisons

Fri, July 11

9:00 AM → 10:30 AM Comparisons and tuning: Wrap up of the analyses and comparisons

10:30 AM → 12:00 PM Write Up