cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.51855.v1/t30
title: "Table 30" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2125 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t31
title: "Table 31" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2175 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t32
title: "Table 32" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2225 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t33
title: "Table 33" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2275 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t34
title: "Table 34" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2325 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t35
title: "Table 35" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2375 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t36
title: "Table 36" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2425 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t37
title: "Table 37" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2475 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t38
title: "Table 38" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2525 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.5285/a9cbce58-d20b-4881-a6bf-14ef7e777bcc
title: Mid-Ocean Ridge Basalt (MORB) Hafnium isotope data and eclogite trace element maps

description: Whole rock Hafnium (Hf) isotope data for mid-oceanic ridge basalt (MORB) samples from the Reykjanes ridge, Arctic Ocean, Equatorial Mid-Atlantic Ridge, South Mid-Atlantic Ridge, South East Indian Ridge.
The Hf isotope results are not yet published but will contribute to the mantle characterisation efforts detailed in Béguelin et al. (2025) (https://doi.org/10.1029/2025GC012357).
Mid-Ocean Ridge Basalt (MORB) glasses were crushed and sieved to ~600 µm. Chips were then hand-piked under a binocular microscope to remove alteration (only optically clear chips selected). Hf fractions were purified using the column chemistry protocol of Béguelin et al. (2017) and references therein (https://doi.org/10.1016/j.gca.2017.09.015). Hf isotope ratios were measured on a Nu Instruments Plasma II mass spectrometer equipped with an Aridus desolvating nebuliser, on 50 ppb solutions. Accuracy and precision were monitored with repeated measurements of the JMC-475 standard (reported in dataset).

Scanning Electron Microscopy-Energy Dispersive Spectrometry (SEM EDS) and Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) major and trace elements maps of eclogites from the Raspas complex (Ecuador). Samples were prepared as 1-inch epoxy mounts. Samples are described in John et al. (2010) (https://doi.org/10.1007/s00410-009-0427-0). 
The objective of this (present) work is to trace U, Pb and Th fluxes during subduction, as documented by obducted eclogites. 
Dataset includes SEM mapping of major elements with a Zeiss Sigma HD Field Emission Gun Analytical Scanning Electron Microscope (SEM) using energy dispersive X-ray spectroscopy (EDS). Elements measured are Fe, Ca, Cu, Ni, Mn, K, Na, Al, Mg, Ti, O, Cr, S, Si, P, Zr. Resolution is 25µm.
Dataset also includes LA-ICP-MS mapping of trace elements using an Elemental Scientific ESL213 laser coupled to a Thermo Scientific iCap Q mass spectrometer. Elements measured are Rb, Sr, Mo, Cs, La, Yb, Pb, Th, U. Parameters: Raster spacing (resolution): 40µm, scan speed: 80 µm/s, rep rate: 20 Hz, fluence: 4.5 J/cm2, dwell time per element: 50 ms, injector: ESI dual concentric injector (DCI). SEM data are in weight %, LA-ICP-MS data are in µg/g (ppm).
Data are unpublished, but further details can be found in the poster included with the dataset.

Dataset was produced at the School of Earth and Environmental Sciences, Cardiff University, in the context of NERC grant NE/T012633/1 Mantle Circulation Constrained (MC2): A multidisciplinary 4D Earth framework for understanding mantle upwellings.
DOI: 10.17182/hepdata.51855.v1/t39
title: "Table 39" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2575 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t40
title: "Table 40" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2625 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t41
title: "Table 41" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2675 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t42
title: "Table 42" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2725 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t44
title: "Table 44" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2825 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51856.v1/t1
title: "Table 1" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Production cross section for (D+ + D-) mesons.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51855.v1/t43
title: "Table 43" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2775 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51855.v1/t45
title: "Table 45" of "pi0 photoproduction on the proton for photon energies from 0.675-GeV to 2.875-GeV."

description: Differential cross section for indicent photon energy 2875 MeV.
description: Jefferson Lab - CEBAF. Measurement of the differential cross section for the photoproduction reaction GAMMA P --& gt; P PI0 for tagged photon incident energiesfrom 0.675 to 2.875 GeV. The data were taken during the g1c run in Hall B with two running periods having electron beam energies 2.445 and 3.115 GeV respectively and a liquid hydrogen target.. Numerical values supplied by M Dugger.
DOI: 10.17182/hepdata.51856.v1/t2
title: "Table 2" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Production cross section for (D0 + DBAR0) mesons not originating from D*+- decays.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t3
title: "Table 3" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D+- cross section as a function of Q**2.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t4
title: "Table 4" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D+- cross section as a function of X.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t5
title: "Table 5" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D+- cross section as a function of the transverse momentum of the D meson.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t6
title: "Table 6" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D+- cross section as a function of the pseudorapidity of the D meson.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t7
title: "Table 7" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D0/DBAR0 cross section as a function of Q**2.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t10
title: "Table 10" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D0/DBAR0 cross section as a function of the pseudorapidity of the D meson.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t11
title: "Table 11" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured cross section for D+- mesons in Q**2 and Y bins.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t12
title: "Table 12" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured cross section for D0/DBAR0 mesons in Q**2 and Y bins.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t13
title: "Table 13" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: The extracted values of the F2(NAME=CHARM) structure function from the production cross section of D+- mesons.. The second systematic error is from the extrapolation to the full phase space.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t8
title: "Table 8" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D0/DBAR0 cross section as a function of X.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t9
title: "Table 9" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: Measured D0/DBAR0 cross section as a function of the transverse momentum of the D meson.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.
DOI: 10.17182/hepdata.51856.v1/t14
title: "Table 14" of "Measurement of D+- and D0 production in deep inelastic scattering using a lifetime tag at HERA"

description: The extracted values of the F2(NAME=CHARM) structure function from the production cross section of D+- mesons.. The second systematic error is from the extrapolation to the full phase space.
description: DESY-HERA. Measurement of the production cross section of D+- and D0/DBAR0 mesons in interactions of 27.5 GeV electrons with 920 GeV protons at a centre of mass energy of 318 GeV. The measurement cover the kinematic range in Q**2 of 5 to 1000 GeV**2, Y from 0.02 to 0.7, PT(D) from 1.5 to 15 GeV and pseudorapidity(D) from -1.6 to 1.6. The data were taken in the 2004 to 2005 running period with an integrated luminosity of 133.6 +- 3.5 pb-1. Values of the open charm contribution to the proton structure function (F2(NAME=CHARM)) are extracted from the data.