Drell Yan production in the parton branching method and POWHEG matching
Armando Bermudez Martinez, Luis Ignacio Estevez Banos, Miguel, Fernandez Moreira, Joel Girones Dominguez, Hannes Jung, Reiner Ramos, Blazquez
TL;DR
This paper combines TMD parton distributions from the Parton Branching method with NLO calculations using POWHEG to accurately predict Drell-Yan transverse momentum spectra, showing good agreement with CMS data at 13 TeV.
Contribution
It introduces a novel combination of PB TMD distributions with POWHEG NLO matching for Drell-Yan processes, including a new scale choice in the CASCADE generator.
Findings
Good agreement with CMS measurements at 13 TeV
Effective combination of TMD and NLO methods
Implementation of new scale choice in CASCADE
Abstract
As part of the DESY summer student program 2021, transverse momentum dependent (TMD) parton distributions obtained from the Parton Branching (PB) method were combined with next-to-leading-order (NLO) using the POWHEG method. Computations of the resulting Drell-Yan (DY) transverse momentum spectrum were performed. A good agreement of the theoretical predictions with the measurement performed by the CMS experiment at the center-of-mass energy of 13 TeV is found, at low and intermediate DY . The new scale choice option for the matching has been included in the CASCADE event generator.
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