Drell--Yan lepton pair production at low invariant masses: transverse-momentum resummation and non-perturbative effects in QCD

2025/08/08 by S. Camarda, Giancarlo Ferrera, Camarda, Stefano +3 · 3 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2508.06201

openalex publication_date 2025/08/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider the transverse-momentum (q_T) distribution of Drell-Yan lepton pairs produced with invariant masses (M) from low values up to the Z-boson peak (4≤ M ≤ 116~GeV). We present perturbative predictions obtained by consistently combining the resummation of logarithmically enhanced QCD corrections at small q_T (q_T ≪ M) up to next-to-next-to-next-to-next-to-leading logarithmic accuracy with the available fixed-order calculations at next-to-next-to-leading order (i.e. O(α_S³)) valid at large q_T. For very low q_T (q_T∼ Λ_QCD), non-perturbative (NP) QCD effects become dominant and have been included through a NP form factor with a small number of free-parameters. We compare our results with multiple experimental datasets from hadron colliders, finding excellent agreement between theory and data. By fitting the NP parameters, we achieve a precise extraction of the NP form factor and the so-called Collins-Soper kernel.

Citations

• Assessing the sensitivity of Energy-Energy Correlations in e⁺e^- annihilation to TMD dynamics
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• Determination of unpolarized TMD distributions from the fit of Drell-Yan and SIDIS data at N⁴LL
• The Path to N³LO Parton Distributions
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• A precise determination of the strong-coupling constant from the recoil of Z bosons with the ATLAS experiment at √(s) = 8 TeV
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• Beyond the Standard Model Physics at the HL-LHC and HE-LHC
• Transverse-momentum resummation for vector-boson pair production at\n NNLL+NNLO
• Diphoton production at hadron colliders: transverse-momentum resummation at next-to-next-to-leading logarithmic accuracy
• HERAFitter, Open Source QCD Fit Project

Cited by

• First constraints on the nonperturbative gluon Collins-Soper kernel
• Ancillary files for "Transverse-momentum resummation at mixed QCD-QED NNLL accuracy for Z boson production at hadron colliders"
• Transverse momentum Resummation and Analytic continuation into the Deep Infrared

Related

• Drell-Yan lepton-pair production: q_T resummation at approximate N⁴LL+N⁴LO accuracy
• Description of fully differential Drell-Yan pair production
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• The resummation of the low-phistar domain of Z production