Journal Article

PUBDB-2025-02460

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Collinear and TMD distributions with dynamical soft-gluon resolution scale

Hautmann, F. (Corresponding author)Extern* ; Keersmaekers, L.DESY* ; Lelek, A.Extern* ; Barzani, S. S. ; Taheri Monfared, S.DESY*

2025
Springer Heidelberg

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Please use a persistent id in citations: doi:10.1007/JHEP06(2025)192  doi:10.3204/PUBDB-2025-02460

Report No.: DESY-25-031; arXiv:2502.19380

Abstract: Soft-gluon resolution scales characterize parton branching Monte Carlo implementations of the evolution equations for parton distribution functions in Quantum Chromodynamics (QCD). We examine scenarios with dynamical, i.e., branching-scale dependent, resolution scale, and discuss physical implications for both collinear and transverse-momentum dependent (TMD) distributions. We perform the first determination of parton distributions with dynamical resolution scale, at next-to-leading order (NLO) in perturbation theory, from fits to precision deep-inelastic scattering measurements from HERA. We present an application of TMD distributions with dynamical resolution scale to Drell-Yan lepton-pair transverse momentum spectra at the LHC and lower-energy experiments, and comment on the extraction of non-perturbative intrinsic-k$_{T}$ parameters from Drell-Yan data at small transverse momenta.

Keyword(s): Parton Distributions ; Parton Shower

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)467467041 - Ein neuer Ansatz für Präzisionsberechnungen von harten Streuprozessen am LHC und zukünftigen Beschleunigern unter Verwendung von Parton Branching Transversalimpuls Verteilungen (PB-app) (467467041) (467467041)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Hautmann, F. (Corresponding author)Extern* ; Keersmaekers, L.DESY* ; Lelek, A.Extern* ; Barzani, S. S. ; Taheri Monfared, S.DESY*
Collinear and TMD distributions with dynamical soft-gluon resolution scale
[10.3204/PUBDB-2025-00904]     Files  Fulltext Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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