Collinear and TMD distributions with dynamical soft-gluon resolution scale

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 comment on the extraction of non-perturbative intrinsic-kT parameters from Drell-Yan data at small transverse momenta.

v2: matches published version in JHEP

References in corpus (86)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Herwig 7.0 / Herwig++ 3.0 Release Note
• Event Generation with Sherpa 2.2
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Rivet user manual
• A standard format for Les Houches Event Files
• Uncertainties of predictions from parton distribution functions II: the Hessian method
• Multiple Interactions and the Structure of Beam Remnants
• Systematic event generator tuning for the LHC
• Transverse momentum dependent (TMD) parton distribution functions: status and prospects
• Parton distributions with small-x resummation: evidence for BFKL dynamics in HERA data
• The CCFM Monte Carlo generator CASCADE 2.2.0
• Small x Resummation with Quarks: Deep-Inelastic Scattering
• Transverse momentum dependent gluon density from DIS precision data
• NLO prescription for unintegrated parton distributions
• Unpolarized Transverse Momentum Distributions from a global fit of Drell-Yan and Semi-Inclusive Deep-Inelastic Scattering data
• Soft-gluon resolution scale in QCD evolution equations
• Determining the Nonperturbative Collins-Soper Kernel From Lattice QCD
• Collinear and TMD parton densities from fits to precision DIS measurements in the parton branching method
• Collins-Soper Kernel for TMD Evolution from Lattice QCD
• TMDlib and TMDplotter: library and plotting tools for transverse-momentum-dependent parton distributions
• Color Glass Condensate at next-to-leading order meets HERA data
• Drell-Yan lepton-pair production: $q_T$ resummation at N${}^3$LL accuracy and fiducial cross sections at N${}^3$LO
• Lattice-QCD Calculations of TMD Soft Function Through Large-Momentum Effective Theory
• Drell-Yan $q_T$ Resummation of Fiducial Power Corrections at N${}^3$LL
• Implementing NLO DGLAP evolution in Parton Showers
• Collinear and TMD Quark and Gluon Densities from Parton Branching Solution of QCD Evolution Equations
• Endpoint singularities in unintegrated parton distributions
• A Global Fit to Scattering Data with NLL BFKL Resummations
• Nonperturbative Determination of Collins-Soper Kernel from Quasi Transverse-Momentum Dependent Wave Functions
• Lattice QCD calculation of the Collins-Soper kernel from quasi TMDPDFs
• Production of Z-bosons in the parton branching method
• Forward Z-boson production and the unintegrated sea quark density
• Fiducial Drell-Yan production at the LHC improved by transverse-momentum resummation at N${}^4$LL+N${}^3$LO
• Third order fiducial predictions for Drell-Yan at the LHC
• Lattice QCD Study of Transverse-Momentum Dependent Soft Function
• Determination of the Collins-Soper Kernel from Lattice QCD
• Systematic analysis of double-scale evolution
• Fiducial $q_T$ resummation of color-singlet processes at N${}^3$LL+NNLO
• A matrix formulation for small-x singlet evolution
• An Overview of Transverse Momentum Dependent Factorization and Evolution
• TMDlib2 and TMDplotter: a platform for 3D hadron structure studies
• The CCFM uPDF evolution uPDFevolv
• PDF bias and flavor dependence in TMD distributions
• CASCADE3 A Monte Carlo event generator based on TMDs
• Dynamical resolution scale in transverse momentum distributions at the LHC
• Angular correlations in multi-jet final states from kt-dependent parton showers
• Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit
• Non-perturbative contributions to vector-boson transverse momentum spectra in hadronic collisions
• PanScales parton showers for hadron collisions: formulation and fixed-order studies
• Lattice Calculation of the Intrinsic Soft Function and the Collins-Soper Kernel
• The $q_T$ and $\Delta \varphi$ spectra in W and Z production at the LHC at N${}^3$LL'+N${}^2$LO
• PanScales showers for hadron collisions: all-order validation
• QCD event generators with next-to-leading order matrix-elements and parton showers
• High-Energy Factorization for Drell-Yan process in $pp$ and $p\bar{p}$ collisions with new Unintegrated PDFs
• On the use of the KMR unintegrated parton distribution functions
• A model of non-perturbative gluon emission in an initial state parton shower
• Next-to-leading-logarithmic PanScales showers for Deep Inelastic Scattering and Vector Boson Fusion
• Parton distribution function for quarks in an s-channel approach
• Longitudinal momentum shifts, showering and nonperturbative corrections in matched NLO-shower event generators
• Transverse-momentum-dependent quark splitting functions in $k_T$-factorization: real contributions
• Pathologies of the KMR prescriptions for unintegrated PDFs: Which prescription should be preferred?
• TMD splitting functions in kT factorization: the real contribution to the gluon-to-gluon splitting
• Transverse momentum dependent splitting functions at work: quark-to-gluon splitting
• Nonperturbative Collins-Soper Kernel from Chiral Quarks with Physical Masses
• A POWHEG generator for deep inelastic scattering
• Back-to-back azimuthal correlations in Z+jet events at high transverse momentum in the TMD parton branching method at next-to-leading order
• Drell-Yan Transverse-Momentum Spectra at N${}^3$LL${}^{\prime }$ and Approximate N${}^4$LL with SCETlib
• Evolution of parton showers and parton distribution functions
• The small kt-region in Drell-Yan production at next-to-leading order with the Parton Branching Method
• Azimuthal correlations of high transverse momentum jets at next-to-leading order in the parton branching method
• Parton distribution functions in the context of parton showers
• Collinearity approximations and kinematic shifts in partonic shower algorithms
• A parton branching with transverse momentum dependent splitting functions
• Multi-jet Merging with TMD Parton Branching
• Determination of the strong-coupling constant from the $Z$-boson transverse-momentum distribution
• Basics of factorization in a scalar Yukawa field theory
• On the role of soft gluons in collinear parton densities and parton shower event generators
• Center-of-mass energy dependence of intrinsic-$k_T$ distributions obtained from Drell-Yan production
• Factorization Algorithm for Parton Showers beyond the Leading Logarithmic Order of QCD
• Interplay of intrinsic motion of partons and soft gluon emissions in Drell-Yan production studied with PYTHIA
• Examination of $k_t$-factorization in a Yukawa theory
• Coarse-grained binning in Drell-Yan transverse momentum spectra

Cited by in corpus (1)

• Dihadron Angular Correlations in the $e^{+}{e}^{-}$ Collision