Work

On the PB Sudakov: NNLL coefficient, CS kernel and intrinsic-kt

Year: 2025

Type: conference-paper

Abstract: The Transverse Momentum Dependent (TMD) Parton Branching (PB) method incorporates elements of TMD physics into a Monte Carlo (MC) framework to produce high-energy QCD predictions for collider processes. It derives TMDs from the PB evolution equation - solvable with MC techniques - fits them to data, and then enables their use in MC event generators for QCD predictions. In this article, we describe the relation of the PB Sudakov form factor to the Sudakov factor in the CSS formalism. We discuss both perturbative and non-perturbative components. We present recent developments to include NNLL coefficient in the PB Sudakov. We discuss the CS kernel extractions for different evolution scenarios. We remark the recent studies on intrinsic-kt vs center-of-mass (in)dependence in different approaches and their relation to the non-perturbative Sudakov.

DOI: 10.22323/1.508.0021

Author: Aleksandra Lelek

Institution: University of Antwerp

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Funders: Fonds Wetenschappelijk Onderzoek, Vlaamse regering

Award: Beyond Collinear Factorization: Precision Measurement Era with Predictions from the Parton Branching TMDs.

OpenAlex ID: W4416716598

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