Drell-Yan transverse spectra at the LHC: a comparison of parton branching and analytical resummation approaches
Aron Mees van Kampen
TL;DR
This paper compares two advanced theoretical methods, CSS resummation and parton branching, for predicting Drell-Yan transverse momentum spectra at the LHC, highlighting their differences and accuracies.
Contribution
It provides a detailed comparison between CSS formalism and parton branching approaches for TMD evolution in Drell-Yan processes.
Findings
Both approaches yield consistent predictions within uncertainties.
Differences observed in certain kinematic regions.
Insights into the applicability of each method for precision predictions.
Abstract
I report on precision comparisons of theoretical predictions for Drell-Yan (DY) transverse momentum spectra from two approaches: the analytical resummation approach based on Collins-Soper-Sterman (CSS) formalism and the parton branching (PB) approach to the evolution of transverse momentum dependent (TMD) parton distributions.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions