Drell-Yan production with the CCFM-K evolution
Krzysztof Golec-Biernat, Tomasz Stebel
TL;DR
This paper investigates Drell-Yan dilepton production using CCFM-K evolved transverse momentum dependent parton distributions, incorporating angular and transverse momentum ordering, and compares predictions with experimental data.
Contribution
It introduces the CCFM-K evolution scheme for TMD parton distributions, combining angular and transverse momentum ordering with CSS resummation.
Findings
Good agreement with experimental transverse momentum spectra
Demonstrates the effectiveness of CCFM-K evolution in Drell-Yan processes
Provides insights into parton dynamics at different x regimes
Abstract
We discuss the Drell-Yan dilepton production using the transverse momentum dependent parton distributions evolved with the Catani-Ciafaloni-Fiorani-Marchesini-Kwieci\'nski (CCFM-K) equations in the single loop approximation. Such equations are obtained assuming angular ordering of emitted partons (coherence) for and transverse momentum ordering for . This evolution scheme also contains the Collins-Soper-Sterman (CSS) soft gluon resummation. We make a comparison with a broad class of data on transverse momentum spectra of low mass Drell-Yan dileptons.
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