Determination of Polarized PDFs from a QCD Analysis of Inclusive and Semi-inclusive Deep Inelastic Scattering Data

Abstract

A new combined next to leading order QCD analysis of the polarized inclusive and semi-inclusive deep inelastic lepton-hadron scattering (DIS) data is presented. In contrast to previous combined analyses, the $1/Q^2$ terms (kinematic - target mass corrections, and dynamic - higher twist corrections) in the expression for the nucleon spin structure function $g_1$ are taken into account. The new COMPASS data are included in the analysis. The impact of the semi-inclusive data on the polarized parton densities (PDFs) and on the higher twist corrections is discussed. The new results for the PDFs are compared to our (Leader, Sidorov, Stamenov) LSS'06 PDFs, obtained from the fit to the inclusive DIS data alone, and to those obtained from the de Florian, Sassot, Stratmann, and Vogelsang global analysis.

11 pages, 8 figures, a version to be published in Phys. Rev. D

References in corpus (17)

• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• Global Analysis of Fragmentation Functions for Protons and Charged Hadrons
• The Spin-dependent Structure Function of the Proton g_1^p and a Test of the Bjorken Sum Rule
• QCD Analysis of the Polarized World Data
• QCD Analysis of Polarized Deep Inelastic Scattering Data
• Quark helicity distributions from longitudinal spin asymmetries in muon-proton and muon-deuteron scattering
• The Polarised Valence Quark Distribution from semi-inclusive DIS
• Determination of gluon polarization from deep inelastic scattering and collider data
• Impact of CLAS and COMPASS data on Polarized Parton Densities and Higher Twist
• Experimental study of isovector spin sum rules
• Bjorken Sum Rule and pQCD frontier on the move
• Determination of polarized parton distribution functions with recent data on polarization asymmetries
• Higher twists in polarized DIS and the size of the constituent quark
• Some Remarks on Methods of QCD Analysis of Polarized DIS Data
• Analytic Perturbation Theory Model for QCD and Upsilon Decay

Cited by in corpus (118)

• QCD and strongly coupled gauge theories: challenges and perspectives
• The Spin Structure of the Nucleon
• A first unbiased global determination of polarized PDFs and their uncertainties
• Evidence for polarization of gluons in the proton
• Parton distributions and lattice QCD calculations: a community white paper
• Parton-to-Pion Fragmentation Reloaded
• First simultaneous extraction of spin-dependent parton distributions and fragmentation functions from a global QCD analysis
• Generalized Parton Distributions in the valence region from Deeply Virtual Compton Scattering
• 50 Years of Quantum Chromodynamics
• Iterative Monte Carlo analysis of spin-dependent parton distributions
• Complete flavor decomposition of the spin and momentum fraction of the proton using lattice QCD simulations at physical pion mass
• First extraction of valence transversities in a collinear framework
• The Spin Structure Function $g_1^{\mathrm{p}}$ of the Proton and a Test of the Bjorken Sum Rule
• Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at $\sqrt{s}=200$ GeV
• The Spin Structure of the Nucleon
• Strange quark suppression from a simultaneous Monte Carlo analysis of parton distributions and fragmentation functions
• Strangeness Contribution to the Proton Spin from Lattice QCD
• Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC
• Inclusive double-helicity asymmetries in neutral pion and eta meson production in $\vec{p}+\vec{p}$ collisions at $\sqrt{s}=200$ GeV
• Small-$x$ asymptotics of the quark helicity distribution
• Nucleon structure from basis light-front quantization
• Parton momentum and helicity distributions in the nucleon
• Leading and Next-to-Leading Order Gluon Polarisation in the Nucleon and Longitudinal Double Spin Asymmetries from Open Charm Muoproduction
• First Monte Carlo analysis of fragmentation functions from single-inclusive $e^{+}{e}^{-}$ annihilation
• Impact of hadronic and nuclear corrections on global analysis of spin-dependent parton distributions
• Four-loop QCD analysis of the Bjorken sum rule vs data
• Flavor Structure of the Nucleon Sea
• A light front quark-diquark model for the nucleons
• Spin-orbit correlations in the nucleon
• Leading order determination of the gluon polarisation from DIS events with high-p_T hadron pairs
• Inclusive cross section and double-helicity asymmetry for ${\pi }^0$ production at midrapidity in $p$$+$$p$ collisions at $\sqrt{s}=510$ GeV
• New developments in the statistical approach of parton distributions: tests and predictions up to LHC energies
• New analysis concerning the strange quark polarization puzzle
• The Polarized Three-Loop Anomalous Dimensions from On-Shell Massive Operator Matrix Elements
• Locally smeared operator product expansions in scalar field theory
• Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at $\sqrt{s}=500$ GeV
• Higher twist parton distributions from light-cone wave functions
• The Parton Orbital Angular Momentum: Status and Prospects
• Lattice corrections to the quark quasidistribution at one-loop
• A Possible Resolution of the Strange Quark Polarization Puzzle ?
• Determination of pion and kaon fragmentation functions including spin asymmetries data in a global analysis
• Helicity Parton Distributions at a Future Electron-Ion Collider: A Quantitative Appraisal
• Flavor decomposition of the nucleon unpolarized, helicity and transversity parton distribution functions from lattice QCD simulations
• Nucleon spin structure functions at NNLO in the presence of target mass corrections and higher twist effects
• Measurement of parity-violating spin asymmetries in W${}^{\pm }$ production at midrapidity in longitudinally polarized $p$$+$$p$ collisions
• Prospects for Charged Current Deep-Inelastic Scattering off Polarized Nucleons at a Future Electron-Ion Collider
• Angular momentum and generalized parton distributions for the proton with basis light-front quantization
• Measurement of the cross section and longitudinal double-spin asymmetry for di-jet production in polarized $pp$ collisions at $\sqrt{s}$ = 200 GeV
• Helicity-dependent generalized parton distributions for nonzero skewness
• QCD analysis of polarized DIS and the SIDIS asymmetry world data and light sea-quark decomposition
• Numerical solution of $Q^2$ evolution equations for fragmentation functions
• Strange quark asymmetry in the proton in chiral effective theory
• Leading twist generalized parton distributions and spin densities in a proton
• Uncertainties in pion and kaon fragmentation functions
• Small- and large-x nucleon spin structure from a global QCD analysis of polarized Parton Distribution Functions
• Analytical approaches to the determination of spin-dependent parton distribution functions at NNLO approximation
• Next-to-Leading Order QCD Corrections to Inclusive Heavy-Flavor Production in Polarized Deep-Inelastic Scattering
• Polarized electron-deuteron deep-inelastic scattering with spectator nucleon tagging
• Spin and angular momentum in the nucleon
• Polarized Parton Distributions at an Electron-Ion Collider
• Constraints on $s-\bar{s}$ asymmetry of the proton in chiral effective theory
• Hadron mass corrections in semi-inclusive deep-inelastic scattering
• Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries
• Threshold resummation at N${}^3$LL accuracy and approximate N${}^3$LO corrections to semi-inclusive DIS
• Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
• Single-Spin Asymmetries in W Boson Production at Next-to-Leading Order
• Nucleon axial form factor from generalized parton distributions
• Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons
• Fragmentation with a Cut on Thrust: Predictions for B-factories
• Calculating Dihadron Fragmentation Functions in the NJL-jet model
• $O({\alpha }_s^2$) Polarized Heavy Flavor Corrections}to Deep-Inelastic Scattering at $Q^2\gg m^2$
• On the small-$x$ behavior of the orbital angular momentum distributions in QCD
• Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
• Statistical description of the proton spin with a large gluon helicity distribution
• Global analysis of polarized DIS & SIDIS data with improved small-$x$ helicity evolution
• Longitudinal Double-Spin Asymmetries for ${\pi }^0$s in the Forward Direction for 510 GeV Polarized $pp$ Collisions
• Target mass corrections and higher twist effects in polarized deep-inelastic scattering
• Threshold resummation for polarized (semi-)inclusive deep inelastic scattering
• First Extraction of Transverse Momentum Dependent Helicity Distributions
• Impact of recent COMPASS data on polarized parton distributions and structure functions
• Measurements of double-helicity asymmetries in inclusive $J/\psi$ production in longitudinally polarized $p+p$ collisions at $\sqrt{s}=510$ GeV
• QCD analysis of structure functions in deep inelastic neutrino-nucleon scattering without using the orthogonal polynomials approach
• A lattice study of the strangeness content of the nucleon
• Quark spin-orbit correlations in the pion meson in light-cone quark model
• Quark helicity distributions in transverse momentum space and transverse coordinate space
• Dihadron Fragmentation Functions from the NJL-jet model and their QCD Evolution
• Cross sections and double-helicity asymmetries of midrapidity inclusive charged hadrons in p+p collisions at sqrt(s)=62.4 GeV
• Importance of Sea Contribution to Nucleons
• General positivity bounds for spin observables in particle inclusive production
• Longitudinally Polarized Photoproduction of Heavy Flavors at Next-to-Leading Order of QCD
• Three-dimensional parton distribution functions $g_{1T}$ and $h_{1L}^{\perp }$ in the polarized proton-antiproton Drell-Yan process
• Strange quark helicity in the proton from chiral effective theory
• Sensitivity of strange quark polarization to flavor SU(3) symmetry breaking
• Double longitudinal-spin asymmetries in $J/\psi$ production at RHIC
• Unbiased Polarised Parton Distribution Functions and their Uncertainties
• QED corrections to parton distributions and Altarelli-Parisi splitting functions in the polarized case
• Small-x behavior of non-singlet spin structure function and Bjorken sum rule with pQCD correction up to NNLO and Higher twist correction
• Nucleon Structure from Basis Light-Front Quantization : Status and Prospects
• Quark spin-orbit correlations
• Differential Heavy Quark Distributions and Correlations in Longitudinally Polarized Deep-Inelastic Scattering
• Effect of symmetry breaking of polarized light sea quarks on the nucleon and nuclear structure functions, and sum rules
• Gluon Polarization in Longitudinally Polarized $pp$ Collisions at STAR
• Hadron spin structure from lattice QCD
• Determination of the pion generalized parton distributions at zero skewness
• Toward Precision Helicity PDFs from Global DIS and SIDIS Fits with Projected EIC Measurements
• AAK24: Global QCD analysis on polarized parton distribution in the presence of $A_2$ asymmetry measurements
• Symmetry breaking effect on determination of polarized and unpolarized parton distributions
• Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory
• Improved Method to extract Nucleon Helicity Distributions using Event Weighting
• Gluon Polarisation Measurements @ COMPASS
• Flavor asymmetry of the polarized nucleon sea
• Recent results of gluon and sea quark polarization measurements in polarized proton-proton collisions at STAR
• QCD analysis of valence structure functions using deep inelastic lepton-nucleon scattering
• Spin structure of the nucleon on the light front
• Measurement of longitudinal single-spin asymmetries for $W^{\pm }$ boson production in polarized $p+p$ collisions at $\sqrt{s}=510$ GeV at STAR
• Proton Structure and PHENIX Experiment
• Proton momentum and angular momentum decompositions with overlap fermions
• Nucleon spin structure functions, considering target mass correction and higher twist effects at the NNLO accuracy and their transverse momentum dependence