cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.53739.v1/t55
title: "Table 55" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.22 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t56
title: "Table 56" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.26 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t57
title: "Table 57" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.30 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t58
title: "Table 58" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.34 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t59
title: "Table 59" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.38 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t60
title: "Table 60" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.45 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t61
title: "Table 61" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.55 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t62
title: "Table 62" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.65 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t63
title: "Table 63" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.75 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t64
title: "Table 64" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.85 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t65
title: "Table 65" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 2.95 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t66
title: "Table 66" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.05 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t67
title: "Table 67" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.15 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t68
title: "Table 68" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.25 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t69
title: "Table 69" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.35 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t70
title: "Table 70" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.45 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t71
title: "Table 71" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.55 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t72
title: "Table 72" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.65 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t73
title: "Table 73" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.75 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t74
title: "Table 74" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.85 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53739.v1/t75
title: "Table 75" of "High-statistics study of ${\boldmath \eta \pi^0}$ production in two-photon collisions"

description: The differential cross section as a function of angle for W = 3.95 GeV.
description: KEK-KEKB Collider. Measurement of the differential and total cross sections for ETA PI0 production in two-photon collisions in the W range 0.84 to 4.0 GeV and range of absolute (COS(THETA *)) less than 0.8. The data sample comes from 223 fb-1 of E+ E- interactions around the Upsilon region.. Numerical values supplied by S. Uehara.
DOI: 10.17182/hepdata.53740.v1/t1
title: "Table 1" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 24 GeV**2 for centre-of-mass energy 318.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t2
title: "Table 2" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 32 GeV**2 for centre-of-mass energy 318.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t3
title: "Table 3" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 45 GeV**2 for centre-of-mass energy 318.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t4
title: "Table 4" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 60 GeV**2 for centre-of-mass energy 318.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t5
title: "Table 5" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 80 GeV**2 for centre-of-mass energy 318.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t6
title: "Table 6" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 110 GeV**2 for centre-of-mass energy 318.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t7
title: "Table 7" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 24 GeV**2 for centre-of-mass energy 251.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t8
title: "Table 8" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 32 GeV**2 for centre-of-mass energy 251.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t10
title: "Table 10" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 60 GeV**2 for centre-of-mass energy 251.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t11
title: "Table 11" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 80 GeV**2 for centre-of-mass energy 251.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t12
title: "Table 12" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 110 GeV**2 for centre-of-mass energy 251.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t13
title: "Table 13" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 24 GeV**2 for centre-of-mass energy 225.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.
DOI: 10.17182/hepdata.53740.v1/t14
title: "Table 14" of "Measurement of the Longitudinal Proton Structure Function at HERA"

description: The reduced cross section at Q**2 = 32 GeV**2 for centre-of-mass energy 225.
description: DESY-HERA. Measurements of the reduced cross sections and FL and F2 in positron-proton collisions at centre-of-mass energies 225, 251 and 318 GeV. The data cover the X region 0.0005 to 0.007 and Q**2 from 20 to 130 GeV, and were collected during 2006 and 2007 with total integrated luminosities of 44.5, 7.1 and 13.9 pb-1 respectively.. Sources of systematic error are:. DEL(UNC) uncorrelated uncertainty,. DEL(gP) photoprodction background,. DEL(Ee) electron energy scale,. DEL(Eh) hadronic energy scale,. DEL(eiD) electron finding efficiency,. DEL(dx),DEL(dy) SRTD and HES position uncertainty,. DEL(MVD),DEL(CTD) hit finding effficiencies,. DEL(diff) diffractive scale factors.