Apr 8 – 12, 2024
Maison MINATEC, Grenoble, FRANCE
Europe/Paris timezone

Fantômas4QCD: pion PDFs with epistemic uncertainties

Apr 10, 2024, 2:50 PM
Maison MINATEC, Grenoble, FRANCE

Maison MINATEC, Grenoble, FRANCE

3 Parv. Louis Néel, 38054 Grenoble
Regular parallel talk WG1: Structure Functions and Parton Densities WG1


Aurore Courtoy (Instituto de Física, UNAM)


In light of recent progress on both the experimental and lattice-QCD sides, our understanding of the pion’s structure has evolved. Phenomenological, or global, QCD analyses — the focus of this talk— play a crucial role in establishing a bridge between experimental data, theoretical predictions, and lattice-QCD studies. I will present recent efforts in the determination of the distribution of partons in the pion, with an emphasis on uncertainty quantification. The Fantômas project aims to explore the role of parametric forms for the distribution of quarks and gluons in the final uncertainty that results from the global analysis. To achieve this objective, the Fantômas project employs Bézier curves for generating diverse functional forms for the PDFs. The selection process for the final set of solutions hence involves sampling over the parametrization space, allowing for a comprehensive exploration of uncertainties.

Primary author

Aurore Courtoy (Instituto de Física, UNAM)


Prof. Fredrick Olness (Southern Methodist University) Mr Lucas Kotz (Southern Methodist University) Mr Maximiliano Ponce Chávez (Southern Methodist University) Prof. Pavel Nadolsky (Southern Methodist University)

Presentation materials