Special Challenges in Quantum Chromodynamics

8 Jan 2026, 12:45 → 9 Jan 2026, 15:30 Europe/Rome

Galileo Galiei Institute for Theoretical Physics

(Photo by Yuri Dokshitzer)

 

This small workshop, focuses on advanced topics in perturbative Quantum Chromodynamics (QCD), inspired by  the scientific legacy of Stefano Catani

The main topic of this year's edition is Sudakov resummation. We plan to critically compare different resummation approaches, calculations in direct and conjugate spaces, in Soft Collinear Effective Theory (SCET) and direct QCD, parton showers and automated resummation techniques. We will also discuss the impact of resummation on the description of heavy-quark fragmentation and shape variables in e+e- annihilation, and its relevance for the accurate determination of the strong coupling.

 

 

Speakers:  U. Aglietti, T. Becher, M. Cacciari, S. Kluth, F. Krauss, G. Ridolfi, G. Zanderighi

 

Organizers:  R. Bonciani, L. Cieri, D. de Florian, P. K. Dhani, G. Ferrera, M. Grazzini,  G. Rodrigo

 

Previous meetings:

Stefano Catani Memorial Symposium 2025

 

 

 

This event is sponsored by:

National Institute for Nuclear Physics (INFN)

 

The Galileo Galilei Institute for Theoretical Physics

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Thursday 8 January

13:30 Welcome

Introduction

Afternoon session

1 Resummation ambiguities in SCET vs. direct QCD

Speaker: Giovanni Ridolfi (Istituto Nazionale di Fisica Nucleare)

2 TBD

Speaker: Thomas Becher (University of Bern)

3 Discussion

16:30 Coffee Break

Afternoon session

4 Resummation for heavy-quark fragmentation in e+e- collisions

Speaker: Matteo Cacciari (LPTHE Paris)

5 TBD

Speaker: Frank Krauss (IPPP, University of Durham)

6 Discussion

20:30 Social dinner

Friday 9 January

Morning session

7 TBD

Speaker: Stefan Kluth (Max Planck Institute)

10:00 Coffee Break

Morning session

8 Sudakov resummation in direct and conjugate spaces

Speaker: Ugo Giuseppe Aglietti (Istituto Nazionale di Fisica Nucleare)

9 Automated resummation for event-shape variables

Speaker: Giulia Marcella Maria Zanderighi

10 Discussion

Closing

13:00 Lunch