Measurement of D*+- production and the charm contribution to F_2 in deep inelastic scattering at HERA

Abstract

The production of D*+-(2010) mesons in deep inelastic scattering has been measured in the ZEUS detector at HERA using an integrated luminosity of 37 pb^-1. The decay channels D*+ -> D0 pi+(+c.c.), with D0 -> K- pi+ or D0 ->K- pi- pi+ pi+, have been used to identify the D mesons. The e+p cross section for inclusive D*+- production with 1<Q^2<600 GeV^2 and 0.02<y<0.7 is 8.31 +- 0.31(stat.) +0.30-0.50(syst.) nb in the kinematic region 1.5< pT(D*+-)<15 GeV and |eta(D*+-)|<1.5. Differential cross sections are consistent with a next-to-leading-order perturbative-QCD calculation when using charm-fragmentation models which take into account the interaction of the charm quark with the proton remnant. The observed cross section is extrapolated to the full kinematic region in pT(D*+-) and eta(D*+-) in order to determine the charm contribution, F^ccbar_2(x,Q^2), to the proton structure function. The ratio F^ccbar_2/F_2 rises from ~10% at Q^2 ~1.8 GeV^2 to ~30% at Q^2 ~130 GeV^2 for x values in the range 10^-4 to 10-3.

35 pages, 9 figures. Correction 7/10/99: Figure 9 has been updated. Correction 3/04/00: Miss-prints in tables (1,2,3) and in Figure 5 have been corrected

Cited by in corpus (105)

• Parton distributions for the LHC
• Parton distributions for the LHC Run II
• Parton distributions with LHC data
• New parton distribution functions from a global analysis of quantum chromodynamics
• Generalized Parton Distributions
• An Impact Parameter Dipole Saturation Model
• The CT10 NNLO Global Analysis of QCD
• Uncertainties on alpha_S in global PDF analyses and implications for predicted hadronic cross sections
• NNLO global parton analysis
• Impact of Heavy Quark Masses on Parton Distributions and LHC Phenomenology
• Parton distribution functions and benchmark cross sections at NNLO
• Heavy quarks in deep-inelastic scattering
• Measurement and QCD Analysis of Neutral and Charged Current Cross Sections at HERA
• Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA
• Open Heavy Flavor Production in QCD -- Conceptual Framework and Implementation Issues
• Impact parameter dependent colour glass condensate dipole model
• CTEQ6 Parton Distributions with Heavy Quark Mass Effects
• Heavy-quark mass dependence in global PDF analyses and 3- and 4-flavour parton distributions
• Heavy Quark Mass Effects in Deep Inelastic Scattering and Global QCD Analysis
• Measurement of the Charm and Beauty Structure Functions using the H1 Vertex Detector at HERA
• Measurement of D^(*+-) Meson Production and F_2^c in Deep-Inelastic Scattering at HERA
• Measurement of D*+- production in deep inelastic ep scattering at HERA
• A Global Fit to Scattering Data with NLL BFKL Resummations
• New data and the hard pomeron
• Anatomy of the differential gluon structure function of the proton from the experimental data on F_2p
• Comparison between variable flavor number schemes for charm quark electroproduction
• Further success of the colour dipole model
• Inclusive Production of D^+, D^0, D_s^+ and D^*+ Mesons in Deep Inelastic Scattering at HERA
• Charmonium absorption by nucleons
• Measurement of charm fragmentation ratios and fractions in photoproduction at HERA
• Measurement of charm and beauty production in deep inelastic ep scattering from decays into muons at HERA
• Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass
• Measurement of D^{*\pm} Meson Production and Determination of F_2^{ccbar} at low Q2 in Deep-Inelastic Scattering at HERA
• Geometric Scaling in Inclusive Charm Production
• The proton's gluon distribution
• Structure Functions
• Measurement of $D^{\ast \pm }$ production in deep inelastic scattering at HERA
• Perturbative QCD and Regge theory: closing the circle
• Measurement of the open-charm contribution to the diffractive proton structure function
• Charm quark mass dependence in a global QCD analysis
• Measurement of Inclusive Ds+- Photoproduction at HERA
• Measurement of the D* Meson Production Cross Section and F_2^{ccbar}, at High Q^2, in ep Scattering at HERA
• Search for a narrow charmed baryonic state decaying to D^*+/- p^-/+ in ep collisions at HERA
• Heavy-quark contributions to the ratio F_L/F_2 at low x
• A Comprehensive Approach to Structure Functions
• Heavy quark photoproduction in proton-proton collisions
• Improved formulation of global QCD analysis with zero-mass hard cross sections
• Measurement of Charm and Beauty Photoproduction at HERA using D* mu Correlations
• The Effect of LHC Jet Data on MSTW PDFs
• Production of D* Mesons with Dijets in Deep-Inelastic Scattering at HERA
• Constraining the nuclear gluon distribution in $eA$ processes at RHIC
• (medium-modified) Fragmentation Functions
• Higgs Boson Cross Section from CTEQ-TEA Global Analysis
• On the Perturbative Stability of the QCD Predictions for the Ratio $R=F_L/F_T$ in Heavy-Quark Leptoproduction
• Measurement of Charm and Beauty Jets in Deep Inelastic Scattering at HERA
• Resummation of transverse momentum and mass logarithms in DIS heavy-quark production
• New parton distributions in fixed flavour factorization scheme from recent deep-inelastic-scattering data
• Diffractive Photoproduction of D*+/-(2010) at HERA
• Transverse momentum dependent parton densities in processes with heavy quark generations
• Beauty photoproduction using decays into electrons at HERA
• Charm and longitudinal structure functions with the Kharzeev-Levin-Nardi model
• Experimental consistency in parton distribution fitting
• What did HERA teach us about the structure of the proton?
• A Variable Flavour Number Scheme for Heavy Quark Production at Small x
• Charm Production and QCD Analysis at HERA and LHC
• Parton Distributions
• Measurement of D^{+} and Lambda_{c}^{+} production in deep inelastic scattering at HERA
• Heavy Quark Photoproduction in Coherent Interactions at High Energies
• Pomeron physics: an update
• The Challenge of Small x
• Twist-2 Heavy Flavor Contributions to the Structure Function $g_2(x,Q^2)$
• Top structure function at the LHeC
• Predictions for Neutrino Structure Functions
• Inclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies
• The predictions of the charm structure function exponents behaviour at low x in deep inelastic scattering
• Geometrical scaling in charm structure function ratios
• NLO corrections to the hard pomeron behavior of the charm structure functions $F_k^c(k=2,L)$ at low x
• Measurement of diffractive production of D*+-(2010) mesons in deep inelastic scattering at HERA
• Physics of the Nucleon Sea Quark Distributions
• Observation of the strange sea in the proton via inclusive Phi-meson production in neutral current deep inelastic scattering at HERA
• Measurement of D mesons Production in Deep Inelastic Scattering at HERA
• A simple model for the nuclear unintegrated gluon distribution
• Measurement of D*+- meson production in ep scattering at low Q^2
• DGLAP evolution extends the triple pole pomeron fit
• Unitarity Corrections to the Proton Structure Functions through the Dipole Picture
• Entropy from entangled parton states and high-energy scattering behavior
• Regge residues from DGLAP evolution
• Associative photoproduction of charmed particles near threshold
• Heavy Flavour Physics at HERA - a Survey
• Uncertainties on Parton Related Quantities
• Open Beauty Production
• Parametrization of the nuclear structure function
• A Survey of Heavy Quark Theory for PDF Analyses
• Heavy quarks structure functions $F_2^{q\bar{q}}(x,Q^2)$ and $F_L^{q\bar{q}}(x,Q^2)$ at the NLO approximation
• Global QCD fit from $Q^2=0$ to $Q^2=30000$ GeV${}^2$ with Regge-compatible initial condition
• Heavy Flavours in Collider Experiments
• Low-x Physics
• Proton structure at the LHC
• The proton's gluon structure
• Pomeron intercept from BFKL gluon dynamics in deep inelastic charm production at HERA
• Lower bounds for open charm and beauty contributions to F_2
• Charm content of a proton in collinear parton model and in k_T-factorization approach
• Log(1/x) Gluon Distribution and Structure Functions in the Loop-Loop Correlation Model
• ep Physics with Heavy Flavours
• Heavy flavours production in deeply inelastic scattering and gluon density in the proton