2025 CTEQ Fall Gathering

Oct 21, 2025, 9:00 AM → Oct 22, 2025, 4:30 PM US/Central

1404/1405/1406/1407 (TCS 240)

Paul Reimer (Argonne National Laboratory), Timothy Hobbs (Argonne National Laboratory)

2025 Fall CTEQ Gathering @ Argonne National Laboratory — October 21–22, 2025

The Fall 2025 CTEQ Gathering will take place at Argonne National Laboratory in the Theory and Computing Sciences (TCS) Building (Building 240).

The gathering will feature one and a half days of open scientific sessions, including an internal CTEQ business meeting on Tuesday afternoon. We invite CTEQ collaborators and friends to join us for in-depth discussions at the intersection of computation, experiment, and theory in Quantum Chromodynamics (QCD).

Topics will include:

• Advances in global QCD analyses across collider and fixed-target frontiers (LHC, EIC, JLab, neutrino experiments, and beyond);

• Novel computational and AI-assisted methods for parton distribution functions (PDFs), lattice-QCD synergy, and effective field theory applications;

• Emerging opportunities linking precision QCD with new physics searches and hadronic structure;

• Cross-disciplinary tools and frameworks accelerating QCD and high-energy theory research.

Students and postdocs are especially encouraged to contribute and present their work.

There is no registration fee for the meeting. Light refreshments will be provided during coffee breaks, and a dinner will be organized on Tuesday evening for those interested.

Please register via the link in the left menu bar so we can plan accordingly. We look forward to welcoming you to Argonne for lively discussions on the future of QCD and its computational frontiers!

Organized by:

Chiara Bissolotti (Argonne)

Tim Hobbs (Argonne)

Brandon Kriesten (Argonne)

Huey-Wen Lin (MSU)

Pavel Nadolsky (MSU)

Paul Reimer (Argonne)

Tue, October 21

9:00 AM → 10:40 AM Session 1

Session 1

Convener: Timothy Hobbs (Argonne National Laboratory)

9:00 AM Welcome

Speaker: Rik Yoshida (Argonne National Laboratory)

9:10 AM Recent lattice QCD developments

Speaker: Yong Zhao

9:40 AM Preview of CJ25 Global Fit

Speaker: Alberto Accardi

10:10 AM nCTEQ25 nuclear PDFs

Speaker: Olek Kusina

10:40 AM → 11:10 AM Coffee

11:10 AM → 12:40 PM Session 2

Session 2

Convener: Timothy Hobbs (Argonne National Laboratory)

11:10 AM Resummed Drell-Yan for RHIC

Speaker: Max Ponce-Chavez

11:40 AM Looking for new physics at the multiboson frontier

Speaker: Saptaparna Bhattacharya

12:10 PM Progress on GMVFN schemes, DGLAP N3LO evolution and other recent CTEQ-TEA activities

Speaker: Marco Guzzi

12:40 PM → 2:15 PM Lunch

2:15 PM → 3:45 PM Session 3

Convener: Timothy Hobbs (Argonne National Laboratory)

2:15 PM Testing the lepton content of the proton at HERA and EIC

Speaker: Subhojit Roy

2:45 PM Uncertainty of the Uncertainty of the Strong Coupling

Speaker: Kirtimaan Mohan

3:15 PM Proton PDF uncertainties: The Markov chain Monte Carlo approach

Speaker: Peter Risse

3:45 PM → 4:15 PM Coffee

4:15 PM → 6:15 PM Session 4: Business Session

Session 4

Convener: Timothy Hobbs (Argonne National Laboratory)

7:00 PM → 9:00 PM Dinner: (for those interested)

Wed, October 22

8:30 AM → 10:30 AM Session 4

Convener: Timothy Hobbs (Argonne National Laboratory)

8:30 AM Heavy Quark Contributions to the Unpolarized and Polarized DIS Structure Functions at NLO in the ACOT scheme

Speaker: Edoardo Spezzano

9:00 AM New approaches to TMD extractions

Speaker: Chiara Bissolotti

9:30 AM Interpreting the Ecology of PDF Uncertainties with Hybrid Methods

Speaker: Brandon Kriesten

10:00 AM MCgen - Practical Tutorials in Monte Carlo Generation

Speaker: Phil Ilten

10:30 AM → 10:45 AM Coffee

10:45 AM → 12:15 PM Session 5

Convener: Timothy Hobbs (Argonne National Laboratory)

10:45 AM Pionic gluons from global QCD analysis of experimental and lattice data

Speaker: William Good

11:15 AM Event-level analysis for DIS

Speaker: Patrick Barry

11:45 AM ML frameworks for neutrino-nucleus theory

Speaker: Josh Isaacson

12:15 PM → 1:45 PM Lunch