Longitudinal Polarized Parton Densities Updated

Abstract

We have re-analyzed the world data on inclusive polarized DIS, in both NLO and LO QCD, including the new HERMES and COMPASS data. The updated NLO polarized densities are given in both the $\overline{\mathrm{MS}}$ and JET schemes. The impact of the new data on the results is discussed.

12 pages, 3 figures

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Cited by in corpus (68)

• The Spin Structure of the Nucleon
• Precise determination of the spin structure function ${\mathbf{g}}_1$ of the proton, deuteron and neutron
• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• Global Analysis of Helicity Parton Densities and Their Uncertainties
• Determination of fragmentation functions and their uncertainties
• Spin Structure of the Nucleon - Status and Recent Results
• Towards a fitting procedure for deeply virtual Compton scattering at next-to-leading order and beyond
• Measurement of Parton Distributions of Strange Quarks in the Nucleon from Charged-Kaon Production in Deep-Inelastic Scattering on the Deuteron
• Measurement of the $x$- and $Q^2$-Dependence of the Asymmetry $A_1$ on the Nucleon
• The Spin Structure of the Nucleon
• Flexible Parametrization of Generalized Parton Distributions from Deeply Virtual Compton Scattering Observables
• The gluon spin contribution to the proton spin from the double helicity asymmetry in inclusive pi^0 production in polarized p+p collisions at sqrt(s)=200 GeV
• Determination of gluon polarization from deep inelastic scattering and collider data
• Impact of CLAS and COMPASS data on Polarized Parton Densities and Higher Twist
• Small-$x$ asymptotics of the quark helicity distribution
• Small-$x$ Asymptotics of the Gluon Helicity Distribution
• Determination of polarized parton distribution functions with recent data on polarization asymmetries
• Leading-Order Determination of the Gluon Polarization from high-$p_T$ Hadron Electroproduction
• Flavor Structure of the Nucleon Sea
• Probing heavy dark matter decays with multi-messenger astrophysical data
• Gluonic Pole Cross Sections and Single Spin Asymmetries in Hadron-Hadron Scattering
• Precision measurements of $g_1$ of the proton and the deuteron with 6 GeV electrons
• Generalized form factors, generalized parton distributions and the spin contents of the nucleon
• The relation between TMDs and PDFs in the covariant parton model approach
• Next-to-next-to-leading order QCD analysis of spin-dependent parton distribution functions and their uncertainties: Jacobi polynomials approach
• Angular momentum sum rule for spin one hadronic systems
• Finite-Q^2 corrections to parity-violating DIS
• The Jacobi Polynomials QCD analysis for the polarized structure function
• Polarized Deeply Inelastic Scattering (DIS) Structure Functions for Nucleons and Nuclei
• QCD analysis of polarized DIS and the SIDIS asymmetry world data and light sea-quark decomposition
• Parton distribution functions and quark orbital motion
• Structure of the nucleon at leading and subleading twist in the covariant parton model
• The Role of Nucleon Strangeness in Supernova Explosions
• Gluon distributions and their applications to Ioffe-time distributions
• Anti-Lambda polarization in high energy pp collisions with polarized beam
• A Precision Measurement of the Neutron Twist-3 Matrix Element $d_2^n$: Probing Color Forces
• Hadron mass corrections in semi-inclusive deep-inelastic scattering
• Single-Inclusive Hadron Production in Polarized pp Scattering at Next-to-Leading Logarithmic Accuracy
• Form factors and other measures of strangeness in the nucleon
• Several Topics on Transverse Momentum-Dependent Fragmentation Functions
• Probing the longitudinal spin transfer via dihadron polarization correlations in unpolarized $e^{+}{e}^{-}$ and $pp$ collisions
• Higher twists in polarized DIS and the size of the constituent quark
• Longitudinal polarization of hyperon and anti-hyperon in semi-inclusive deep-inelastic scattering
• Target mass corrections and higher twist effects in polarized deep-inelastic scattering
• Global analysis of polarized DIS & SIDIS data with improved small-$x$ helicity evolution
• Strange sea distributions of the nucleon
• Moments of the neutron $g_2$ structure function at intermediate $Q^2$
• Polarized gluon distribution in the proton from holographic light-front QCD
• Anti-Hyperon polarization in high energy pp collisions with polarized beams
• QCD factorization for forward hadron scattering at high energies
• A Euclidean bridge to the relativistic constituent quark model
• Impact of recent COMPASS data on polarized parton distributions and structure functions
• Singlet structure function g_1 at small x and small Q^2
• Target mass corrections and twist-3 in the nucleon spin structure functions
• On the new COMPASS measurement of the deuteron spin-dependent structure function $g_1^d$
• Extraction of characteristic constants in QCD with perturbative and nonperturbative methods
• Recent data analysis to revisit the spin structure function of nucleon in Laplace space
• QCD Precision Measurements and Structure Function Extraction at a High Statistics, High Energy Neutrino Scattering Experiment: NuSOnG
• An analysis of polarized parton distribution functions with nonlinear QCD evolution equations
• Comment on the recent COMPASS data on the spin structure function g_1
• Perturbative power Q^2-corrections to the structure function g(1)
• Gluon Polarization In Nucleon
• The polarized TMDs in the covariant parton model approach
• Target mass corrections to matrix elements in nucleon spin structure functions
• Impact of double-logarithmic electroweak radiative corrections on the non-singlet structure functions at small x
• Measurement of the longitudinal spin structure of the proton by COMPASS
• Intrinsic parton motion soft mechanisms and the longitudinal spin asymmetry A_LL in high energy pp -> pi X
• Parton distribution functions and QCD coupling constant from LHC and non-LHC data