%0 Electronic Article
%A Taheri Monfared, Sara
%T Recent progress in transverse momentum dependent (TMD) Parton Densities and corresponding parton showers
%N DESY-24-148
%M PUBDB-2024-05116
%M DESY-24-148
%M arXiv:2410.05853
%D 2024
%Z 5 pages, 2 Figures. Based on a presentation given at the 31st International Workshop on Deep Inelastic Scattering (DIS2024), 8-12 April 2024, Grenoble, France
%X The parton branching method is crucial for Monte Carlo generators, which are essential for high-energy physics predictions. We examine the impact of soft gluons on inclusive collinear and Transverse Momentum Dependent (TMD) parton densities. By applying the Parton-Branching (PB) method, we identify the non-perturbative Sudakov form factor with the integration range z → 1, which is often neglected in collinear parton shower approaches. The significance of soft gluons is demonstrated through the transverse momentum spectrum of Drell-Yan lepton pairs, resulting in an intrinsic-k<sub>t</sub> distribution width that remains independent of √(s), contrary to observations in collinear parton shower approaches. This behavior is attributed to the non-perturbative Sudakov form factor.
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.3204/PUBDB-2024-05116
%U https://bib-pubdb1.desy.de/record/611902