cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.46710.v1/t11
title: "Table 11" of "Dijet production in neutral current deep inelastic scattering at HERA."

description: Dijet cross section as a function of LOG10(XI), in the Q**2 range 468 to 1000 GeV**2.
description: DESY-HERA. Measurement of the Dijet cross sections in neutral current deep inelastic scattering of 27.5 GeV postirons on 820 GeV protons. The cross sections are measured in the Breit Frame using the kT jet alogrithm. The data were collected during the 1996 and 1997 HERA runnning periods and have an integrated luminsoity of 38.4 +- 0.6 pb.-1. The following conditions hold for all the tables:. E(P=1) = 27.5 GeV. E(P=2) = 820 GeV. Y & gt; 0.04. ET(P=4,RF=BREIT) & gt; 8 GeV. ET(P=5,RF=BREIT) & gt; 5 GeV. ET(P=4,RF=LAB) & gt; 5 GeV. ET(P=5,RF=LAB) & gt; 5 GeV. ABS(ETARAP(P=3,4,RF=LAB)) & lt; 2. E(P=3) & gt; 10 GeV. The variable XI is defined as X*(1+M(P_4_5)**2/Q**2 and MEAN(ET) is the average transverse energy of the two jets with highest transverse energy in the event.. In the tables the column headed ISR/FSR is the multiplicative correction which has been applied to account for effects if initial and final-state QED radiation. The second DSYS (systematic) error in the tables is the uncertainty in the jet-energy-scale.
DOI: 10.17182/hepdata.46710.v1/t12
title: "Table 12" of "Dijet production in neutral current deep inelastic scattering at HERA."

description: Dijet cross section as a function of LOG10(XI), in the Q**2 range 1000 to 3162 GeV**2.
description: DESY-HERA. Measurement of the Dijet cross sections in neutral current deep inelastic scattering of 27.5 GeV postirons on 820 GeV protons. The cross sections are measured in the Breit Frame using the kT jet alogrithm. The data were collected during the 1996 and 1997 HERA runnning periods and have an integrated luminsoity of 38.4 +- 0.6 pb.-1. The following conditions hold for all the tables:. E(P=1) = 27.5 GeV. E(P=2) = 820 GeV. Y & gt; 0.04. ET(P=4,RF=BREIT) & gt; 8 GeV. ET(P=5,RF=BREIT) & gt; 5 GeV. ET(P=4,RF=LAB) & gt; 5 GeV. ET(P=5,RF=LAB) & gt; 5 GeV. ABS(ETARAP(P=3,4,RF=LAB)) & lt; 2. E(P=3) & gt; 10 GeV. The variable XI is defined as X*(1+M(P_4_5)**2/Q**2 and MEAN(ET) is the average transverse energy of the two jets with highest transverse energy in the event.. In the tables the column headed ISR/FSR is the multiplicative correction which has been applied to account for effects if initial and final-state QED radiation. The second DSYS (systematic) error in the tables is the uncertainty in the jet-energy-scale.
DOI: 10.17182/hepdata.46710.v1/t13
title: "Table 13" of "Dijet production in neutral current deep inelastic scattering at HERA."

description: Dijet cross section as a function of LOG10(XI), in the Q**2 range 3162 to 10000 GeV**2.
description: DESY-HERA. Measurement of the Dijet cross sections in neutral current deep inelastic scattering of 27.5 GeV postirons on 820 GeV protons. The cross sections are measured in the Breit Frame using the kT jet alogrithm. The data were collected during the 1996 and 1997 HERA runnning periods and have an integrated luminsoity of 38.4 +- 0.6 pb.-1. The following conditions hold for all the tables:. E(P=1) = 27.5 GeV. E(P=2) = 820 GeV. Y & gt; 0.04. ET(P=4,RF=BREIT) & gt; 8 GeV. ET(P=5,RF=BREIT) & gt; 5 GeV. ET(P=4,RF=LAB) & gt; 5 GeV. ET(P=5,RF=LAB) & gt; 5 GeV. ABS(ETARAP(P=3,4,RF=LAB)) & lt; 2. E(P=3) & gt; 10 GeV. The variable XI is defined as X*(1+M(P_4_5)**2/Q**2 and MEAN(ET) is the average transverse energy of the two jets with highest transverse energy in the event.. In the tables the column headed ISR/FSR is the multiplicative correction which has been applied to account for effects if initial and final-state QED radiation. The second DSYS (systematic) error in the tables is the uncertainty in the jet-energy-scale.
DOI: 10.17182/hepdata.46711.v1/t1
title: "Table 1" of "Inelastic photoproduction of J / psi mesons at HERA"

description: The inelastic J/PSI production cross section as a function of W.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46711.v1/t2
title: "Table 2" of "Inelastic photoproduction of J / psi mesons at HERA"

description: The inelastic J/PSI production cross section as a function of Z.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46711.v1/t3
title: "Table 3" of "Inelastic photoproduction of J / psi mesons at HERA"

description: The double differential cross section for J/PSI production as a function of Z and PT**2.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46711.v1/t4
title: "Table 4" of "Inelastic photoproduction of J / psi mesons at HERA"

description: The inelastic J/PSI production cross section as a function of PT**2.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46711.v1/t5
title: "Table 5" of "Inelastic photoproduction of J / psi mesons at HERA"

description: Low Z inelastic J/PSI cross section as a function of W.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46711.v1/t6
title: "Table 6" of "Inelastic photoproduction of J / psi mesons at HERA"

description: Low Z inelastic J/PSI cross section as a function of PT**2.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46711.v1/t7
title: "Table 7" of "Inelastic photoproduction of J / psi mesons at HERA"

description: Inelastic J/PSI cross section for the full Z range. The data come from two different data sets with the points at Z = 0.38 being statistically correlated.
description: DESY-HERA. Measurement of the differential cross sections for inelastic photoproduction of J/PSI mesons in the quasi real photon region Q**2 ~ 0. The data were collected during the 1996-2000 HERA running period with a total integrated luminosity of 87.5 pb-1. The data are from the collisions of 27.5 electrons and positrons with 820 (23 PCT) or 920 (77 PCT) protons. Data cover the W range 60 to 260 GeV, PT(J/PSI)**2 from 1 to 60 GeV**2 and Z from 0.05 to 0.9.
DOI: 10.17182/hepdata.46712.v1/t1
title: "Table 1" of "Three Jet production in deep inelastic scattering at HERA"

description: The inclusive 3-Jet cross section as a function of Q**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t2
title: "Table 2" of "Three Jet production in deep inelastic scattering at HERA"

description: The ratio of 3 jets to 2 jets as a function of Q**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t3
title: "Table 3" of "Three Jet production in deep inelastic scattering at HERA"

description: The inclusive 3-JET cross section as a function of Bjorken scaling variableX for the Q**2 range 5 to 100 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t4
title: "Table 4" of "Three Jet production in deep inelastic scattering at HERA"

description: The inclusive 3-JET cross section as a function of Bjorken scaling variableX for the Q**2 range 150 to 5000 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t5
title: "Table 5" of "Three Jet production in deep inelastic scattering at HERA"

description: The inclusive 3-JET cross section as a function of the invariant 3-JET massfor the Q**2 range 5 to 100 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t6
title: "Table 6" of "Three Jet production in deep inelastic scattering at HERA"

description: The inclusive 3-JET cross section as a function of the invariant 3-JET massfor the Q**2 range 150 to 5000 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t7
title: "Table 7" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of jet energy fraction X3 = 2E(P=4)/M(P=4_5_6) in the 3 JET centre-of-mass frame for Q**2 from 5 to 100 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t10
title: "Table 10" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of jet energy fraction X4 = 2E(P=5)/M(P=4_5_6) in the 3 JET centre-of-mass frame for Q**2 from 150 to 5000 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t11
title: "Table 11" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of COS(THETA(C=3)) in the 3 JET centre-of-mass frame at Q**2 from 5 to 100 GeV**2. THETA(C=3) is the angle of the most energetic jet with respect to the proton beam direction.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t12
title: "Table 12" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of COS(THETA(C=3)) in the 3 JET centre-of-mass frame at Q**2 from 150 to 5000 GeV**2. THETA(C=3) is the angle of the most energetic jet with respect to the proton beam direction.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t8
title: "Table 8" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of jet energy fraction X3 = 2E(P=4)/M(P=4_5_6) in the 3 JET centre-of-mass frame for Q**2 from 150 to 5000 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t9
title: "Table 9" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of jet energy fraction X4 = 2E(P=5)/M(P=4_5_6) in the 3 JET centre-of-mass frame for Q**2 from 5 to 100 GeV**2.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t13
title: "Table 13" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of PSI(C=3)) in the 3 JET centre-of-mass frame at Q**2 from 5 to 100 GeV**2. PSI(C=3) is the angle between the plane spanned by the highest energy jet and the proton beam and the plane containing the 3 jets.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46712.v1/t14
title: "Table 14" of "Three Jet production in deep inelastic scattering at HERA"

description: Distribution of COS(THETA(C=3)) in the 3 JET centre-of-mass frame at Q**2 from 150 to 5000 GeV**2. PSI(C=3) is the angle between the plane spanned by the highest energy jet and the proton beam and the plane containing the 3 jets.
description: DESY-HERA. Measurement of cross sections for 3-Jet production in deep inelastic E+ P collisions of 27.5 GeV positrons with 820 GeV protons at c.m. energy of 300 GeV. The data come from the 1995-97 running period with a total integratedluminosity of 54 pb-1. The data cover the kinetic range in Q**2 from 5 to 5000 GeV**2 and 3-Jet masses from 25 to 140 GeV. Jets are reconstructed in the Breit frame using the inclusive KT algorithm with the parameter R0 = 1. The clusteringis done in the ET recombination scheme.
DOI: 10.17182/hepdata.46713.v1/t1
title: "Table 1" of "Exclusive photoproduction of J/psi mesons at HERA."

description: The total exclusive J/PSI photoproduction cross section, the differential cross section extrapolated to t=0 and the slope parameter of the exponential t dependence as afunction of W, the photon-proton c.m. energy, for data from J/PSI muon decay.
description: DESY-HERA. Measurement of the exclusive photoproduction of J/PSI mesons in the reaction GAMMA P --& gt; J/PSI P in the kinematic range of W from 20 to 290 GeV,where W is the photon-proton c.m. energy. The data come from muon decays of J/P SI collected during 1996 and 1997 with an integrated luminosity of 38 pb-1 and electron decays of J/PSI collected during 1999 and 2000 with an integrated luminosity of 55 pb-1. Both data sets come from 27.5 GeV positrons colliding with 820 GeV protons for the muon data set and 920 GeV protons for the electron data set.Allcross sections are corrected for the respective branching ratios of the J/PS I decay. Numerical values supplied by A. Bruni.
DOI: 10.17182/hepdata.46713.v1/t2
title: "Table 2" of "Exclusive photoproduction of J/psi mesons at HERA."

description: The total exclusive J/PSI photoproduction cross section as a function of W,the photon-proton c.m. energy, for data from J/PSI electron decays.
description: DESY-HERA. Measurement of the exclusive photoproduction of J/PSI mesons in the reaction GAMMA P --& gt; J/PSI P in the kinematic range of W from 20 to 290 GeV,where W is the photon-proton c.m. energy. The data come from muon decays of J/P SI collected during 1996 and 1997 with an integrated luminosity of 38 pb-1 and electron decays of J/PSI collected during 1999 and 2000 with an integrated luminosity of 55 pb-1. Both data sets come from 27.5 GeV positrons colliding with 820 GeV protons for the muon data set and 920 GeV protons for the electron data set.Allcross sections are corrected for the respective branching ratios of the J/PS I decay. Numerical values supplied by A. Bruni.
DOI: 10.17182/hepdata.46713.v1/t3
title: "Table 3" of "Exclusive photoproduction of J/psi mesons at HERA."

description: The differential cross section extrapolated to t=0 and the slope parameter of the exponential t dependence for exclusive J/PSI photoproduction as a function of W, the photon-proton c.m. energy for data from J/PSI electron decays.
description: DESY-HERA. Measurement of the exclusive photoproduction of J/PSI mesons in the reaction GAMMA P --& gt; J/PSI P in the kinematic range of W from 20 to 290 GeV,where W is the photon-proton c.m. energy. The data come from muon decays of J/P SI collected during 1996 and 1997 with an integrated luminosity of 38 pb-1 and electron decays of J/PSI collected during 1999 and 2000 with an integrated luminosity of 55 pb-1. Both data sets come from 27.5 GeV positrons colliding with 820 GeV protons for the muon data set and 920 GeV protons for the electron data set.Allcross sections are corrected for the respective branching ratios of the J/PS I decay. Numerical values supplied by A. Bruni.
DOI: 10.17182/hepdata.46713.v1/t4
title: "Table 4" of "Exclusive photoproduction of J/psi mesons at HERA."

description: Acceptance corrected COS(THETA(XYZ=SH)) distribution for exclusive J/PSI photoproduction muon decay data. THETA(XYZ=SH) is the polar angle of the positively charged lepton in the helicity frame.
description: DESY-HERA. Measurement of the exclusive photoproduction of J/PSI mesons in the reaction GAMMA P --& gt; J/PSI P in the kinematic range of W from 20 to 290 GeV,where W is the photon-proton c.m. energy. The data come from muon decays of J/P SI collected during 1996 and 1997 with an integrated luminosity of 38 pb-1 and electron decays of J/PSI collected during 1999 and 2000 with an integrated luminosity of 55 pb-1. Both data sets come from 27.5 GeV positrons colliding with 820 GeV protons for the muon data set and 920 GeV protons for the electron data set.Allcross sections are corrected for the respective branching ratios of the J/PS I decay. Numerical values supplied by A. Bruni.