Double parton distributions in the nucleon from lattice QCD
arXiv:2106.03451 · doi:10.1007/JHEP09(2021)106
Abstract
We evaluate nucleon four-point functions in the framework of lattice QCD in order to extract the first Mellin moment of double parton distributions (DPDs) in the unpolarized proton. In this first study, we employ an nf = 2 + 1 ensemble with pseudoscalar masses of mpi = 355 MeV and mK = 441 MeV. The results are converted to the scale mu = 2 GeV. Our calculation includes all Wick contractions, and for almost all of them a good statistical signal is obtained. We analyze the dependence of the DPD Mellin moments on the quark flavor and the quark polarization. Furthermore, the validity of frequently used factorization assumptions is investigated.
arXiv comment81 pages, 32 figures
References in corpus (57)
- Generalized Parton Distributions
- The Chroma Software System for Lattice QCD
- JaxoDraw: A graphical user interface for drawing Feynman diagrams
- JaxoDraw: A graphical user interface for drawing Feynman diagrams. Version 2.0 release notes
- Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
- Parton distributions and lattice QCD calculations: a community white paper
- Effective noise reduction techniques for disconnected loops in Lattice QCD
- Double Parton Distributions Incorporating Perturbative QCD Evolution and Momentum and Quark Number Sum Rules
- Novel quark smearing for hadrons with high momenta in lattice QCD
- pQCD Physics of multiparton interactions
- Theoretical considerations on multiparton interactions in QCD
- Adaptive multigrid algorithm for the lattice Wilson-Dirac operator
- Pion Valence Quark Distribution from Matrix Element Calculated in Lattice QCD
- Hadron structure from lattice quantum chromodynamics
- The four jet production at LHC and Tevatron in QCD
- Perturbative QCD correlations in multi-parton collisions
- Same-sign W pair production as a probe of double parton scattering at the LHC
- A QCD Analysis of Double Parton Scattering: Color Correlations, Interference Effects and Evolution
- A fresh look at double parton scattering
- Double Parton Scattering Singularity in One-Loop Integrals
- Pion distribution amplitude from Euclidean correlation functions: Exploring universality and higher-twist effects
- Like-Sign W Boson Production at the LHC as a Probe of Double Parton Scattering
- Single Perturbative Splitting Diagrams in Double Parton Scattering
- Nucleon axial structure from lattice QCD
- What is Double Parton Scattering?
- Double parton scattering in double logarithm approximation of perturbative QCD
- Double parton correlations in constituent quark models
- Double Parton Correlations in the Bag Model
- Double hard scattering without double counting
- Double parton correlations and constituent quark models: a Light Front approach to the valence sector
- Valence double parton distributions of the nucleon in a simple model
- Correlations in Double Parton Distributions: Perturbative and Non-Perturbative effects
- Calculation and Interpretation of Hadron Correlation Functions in Lattice QCD
- Probing hadron wave functions in Lattice QCD
- Constraining the double gluon distribution by the single gluon distribution
- Parton correlations in same-sign pair production via double parton scattering at the LHC
- Non-perturbative renormalization in coordinate space for maximally twisted mass fermions with tree-level Symanzik improved gauge action
- Relativistic effects in model calculations of double parton distribution function
- Proof of sum rules for double parton distributions in QCD
- Generalized Valon Model for Double Parton Distributions
- Quark-gluon double parton distributions in the light-front dressed quark model
- How to impose initial conditions for QCD evolution of double parton distributions?
- Nonperturbative Renormalization in Lattice QCD with three Flavors of Clover Fermions: Using Periodic and Open Boundary Conditions
- A spin on same-sign W-boson pair production
- A Study of Hadron Deformation in Lattice QCD
- Double parton distribution of valence quarks in the pion in chiral quark models
- A model calculation of double parton distribution functions of the pion
- Double parton distributions in the pion in the Nambu and Jona-Lasinio model
- Two-current correlations in the pion on the lattice
- Two-loop splitting in double parton distributions
- Sum rule improved double parton distributions in position space
- The Matter and the Pseudoscalar Densities in Lattice QCD
- DD-AMG on QPACE 3
- Double parton distributions in the pion from lattice QCD
- Double parton correlations in mesons within AdS/QCD soft-wall models: a first comparison with lattice data
- Confronting same-sign W-boson production with parton correlations
- Two-current correlations in the pion in the Nambu and Jona-Lasinio model
Cited by in corpus (8)
- Charged pion electric polarizability from four-point functions in lattice QCD
- Evolution and interpolation of double parton distributions using Chebyshev grids
- Proton image and momentum distributions from light-front dynamics
- Quark mass effects in double parton distributions
- Double parton distributions of the proton from basis light-front quantization
- Valence Quark PDFs of the Proton from Two-Current Correlations in Lattice QCD
- Double parton distributions with flavor interference from lattice QCD
- On sum rules for double and triple parton distribution functions and Pythia's model of multiple parton interactions