TMD evolution and intrinsic transverse momentum in Monte Carlo generators

7 May 2026, 10:30
20m
Sala IMPERIALE B. (Hotel Carlton)

Sala IMPERIALE B.

Hotel Carlton

Talk WG5 Spin and 3D Structure WG5 Spin and 3D-structure

Speaker

Louis Moureaux (Universität Hamburg)

Description

The parton branching (PB) method allows using TMD evolution with standard Monte Carlo event generators, replacing the current approximate treatment of initial state radiation with a rigorous prediction from first principles. A key parameter of PB is the intrinsic $k_\mathrm T$, which governs the low-scale behaviour of the TMD. In its first extraction from collider data, tensions appeared between experiments. We discuss their origin and consequences on the extraction of TMD parameters from high-energy collider data.

Speaker confirmation Yes

Authors

Aleksandra Lelek (UAntwerp) Francesco Hautmann Laurent Favart (Université libre de Bruxelles) Louis Moureaux (Universität Hamburg)

Presentation materials