Parton distributions: a new global analysis

Abstract

We present a new analysis of parton distributions of the proton. This incorporates a wide range of new data, an improved treatment of heavy flavours and a re-examination of prompt photon production. The new set (MRST) shows systematic differences from previous sets of partons which can be identified with particular features of the new data and with improvements in the analysis. We also investigate the sensitivities of the results to (i) the uncertainty in the determination of the gluon at large x, (ii) the value of alpha_S(M_Z^2) and (iii) the minimum Q^2 cut on the data that are included in the global fit.

82 (Latex) pages, including 44 embedded figures, uses epsfig.sty and float.sty; minor modifications to several figures (3,4,5,7,16) and text, typos removed, one reference added

Cited by in corpus (79)

• Parton distributions for the LHC
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Relating different approaches to nonlinear QCD evolution at finite gluon density
• A new measurement of J/psi suppression in Pb-Pb collisions at 158 GeV per nucleon
• Old and new physics interpretations of the NuTeV anomaly
• The pion parton distribution function in the valence region
• Measuring slepton spin at the LHC
• Physics Reach of High-Energy and High-Statistics IceCube Atmospheric Neutrino Data
• Next-to-leading Corrections to the Higgs Boson Transverse Momentum Spectrum in Gluon Fusion
• Longitudinal Polarized Parton Densities Updated
• Charmonium Production at High Energy in the k_T-Factorization Approach
• Measurement of Angular Distributions of Drell-Yan Dimuons in p + d Interaction at 800 GeV/c
• Search for Doubly-Charged Higgs Bosons Decaying to Dileptons in ppbar Collisions at sqrt(s)=1.96 TeV
• Light-Cone Models for Intrinsic Charm and Bottom
• Measurement of the Forward-Backward Charge Asymmetry from W --> e nu Production in p anti-p Collisions at s**(1/2) = 1.96 TeV
• Exclusive J/ψ production in ultraperipheral collisions at the LHC: constrains on the gluon distributions in the proton and nuclei
• Impact of CLAS and COMPASS data on Polarized Parton Densities and Higher Twist
• Measurement of Azimuthal Asymmetries With Respect To Both Beam Charge and Transverse Target Polarization in Exclusive Electroproduction of Real Photons
• Measurement of the inclusive isolated prompt photon cross section in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Inhomogeneous Shadowing Effects on J/ψProduction in dA Collisions
• Branon search in hadronic colliders
• Comparison of the color-evaporation model and the NRQCD factorization approach in charmonium production
• Prospects for heavy supersymmetric charged Higgs boson searches at hadron colliders
• Search for Single Top Quark Production in ep Collisions at HERA
• Energy Dependence of Jet Quenching and Life-time of the Dense Matter in High-energy Heavy-ion Collisions
• Inelastic electron-nucleus scattering and scaling at high inelasticity
• Single Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
• Measurement of the Top Quark Mass using Template Methods on Dilepton Events in Proton-Antiproton Collisions at sqrt(s)=1.96 TeV
• Generalized form factors, generalized parton distributions and the spin contents of the nucleon
• Bloch Wave Function for the Periodic Sphaleron Potential and Unsuppressed Baryon and Lepton Number Violating Processes
• The effect of screening on the $x$ and $Q^2$ bhaviour of $F_2$ slopes
• Probing gluon and heavy-quark nuclear PDFs with photon + heavy quark production in pA collisions
• Enhancement of W+/- H-/+ Production at Hadron Colliders in the Two Higgs Doublet Model
• J/psi plus prompt-photon associated production in two-photon collisions at next-to-leading order
• Measurements of Bottom Anti-Bottom Azimuthal Production Correlations in Proton-Antiproton Collisions at s**(1/2)= 1.8 TeV
• A Z-Monitor to Calibrate Higgs Production via Vector Boson Fusion with Rapidity Gaps at the LHC
• Measurement of direct photon production at Tevatron fixed target energies
• Partonic Energy Loss and the Drell-Yan Process
• Measurement of the p anti-p to t anti-t Production Cross Section and the Top Quark Mass at sqrt{s}=1.96 TeV in the All-Hadronic Decay Mode
• Can the total angular momentum of u-quarks in the nucleon be accessed at HERMES?
• Prompt photon hadroproduction at high energies in the k_T-factorization approach
• Measurement of the Helicity Fractions of W Bosons from Top Quark Decays Using Fully Reconstructed top-antitop Events with CDF II
• Quark asymmetries in the proton from a model for parton densities
• Strange quark asymmetry in the nucleon and the NuTeV anomaly
• Measurement of the W Boson Polarization in Top Decay at CDF at s**(1/2) = 1.8 TeV
• Measurement of Charm and Beauty Dijet Cross Sections in Photoproduction at HERA using the H1 Vertex Detector
• Exotic hybrid mesons in hard electroproduction
• Jets and produced particles in pp collisions from SPS to RHIC energies for nuclear applications
• A method for measurement of the top quark mass using the mean decay length of b hadrons in ttbar events
• Perturbative QCD Analysis of Local Duality in a fixed W^2 Framework
• The saga of bottom production in proton-antiproton collisions
• T-even TMDs for the spin-0 pseudo-scalar mesons upto twist-4 using light-front formalism
• Impact of fully coherent energy loss on heavy meson production in pA collisions
• Recoil and Power Corrections in High-x_T Direct-Photon Production
• Light-front holographic $\rho$-meson distributions in the momentum space
• Search for Excited and Exotic Muons in the mu+gamma Decay Channel in p-pbar Collisions at sqrt{s} = 1.96 TeV
• Uncertainties on Central Exclusive Scalar Luminosities from the unintegrated gluon distributions
• Single Top Production at HERA and THERA
• Has HERA reached a new QCD regime?
• Measurement of azimuthal asymmetries in neutral current deep inelastic scattering at HERA
• The extraction of nuclear sea quark distribution and energy loss effect in Drell-Yan experiment
• Role of Positivity Constraints in Determining Polarized Parton Densities
• Status of the observed and predicted b bar{b} production at the Tevatron
• Physics of the Nucleon Sea Quark Distributions
• High Q^2 Deep Inelastic Scattering at HERA
• $\Lambda$$\Lambda$ interactions in finite-density QCD sum rules
• Anomalous Production of Fourth Family Up Quarks at Future Lepton Hadron Colliders
• Precision Measurements of the W-Boson Mass
• On the $x_F$ Distribution of $J/\psi$'s Produced in Heavy Ion Collisions
• Status of MRST/MSTW PDF sets
• Six-dimensional light-front Wigner distributions of the proton
• Production and Decay of Sneutrino and Squarks at Lepton-Hadron Colliders
• Theoretical aspects of high--Q^2 deep inelastic scattering
• Effects of the CP Odd Dipole Operators on Gluino Production at Hadron Colliders
• The Black Body Limit in Deep Inelastic Scattering
• Photoproduction of isolated photons at HERA in NLO QCD
• Investigation of the factorization scheme dependence of finite order perturbative QCD calculations
• Structure functions at large x
• K+/pi+ probes of jet quenching in AA collisions