cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.64242.v1/t6
title: "Table 6" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Differential cross-section for prompt chi_c2 production, measured in bins of chi_c2 pT, assuming unpolarised chi_c production. The measurements are not corrected for the branching fractions of the decays chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu-. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t7
title: "Table 7" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Differential cross-section for non-prompt chi_c1 production, measured in bins of chi_c1 pT, assuming unpolarised chi_c production. The measurements are not corrected for the branching fractions of the decays chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu-. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t10
title: "Table 10" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Production rate of prompt chi_c2 relative to prompt chi_c1, measured in bins of J/psi pT, assuming unpolarised chi_c production. The ratio is not corrected for the branching fractions of chi_c1 and chi_c2 into J/psi gamma. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t11
title: "Table 11" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Production rate of non-prompt chi_c2 relative to non-prompt chi_c1, measured in bins of J/psi pT, assuming unpolarised chi_c production. The ratio is not corrected for the branching fractions of chi_c1 and chi_c2 into J/psi gamma. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t12
title: "Table 12" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Fraction of chi_c1 produced in b-hadron decays as a function of chi_c1 pT, assuming unpolarised chi_c production. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t13
title: "Table 13" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Fraction of chi_c2 produced in b-hadron decays as a function of chi_c2 pT, assuming unpolarised chi_c production. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t8
title: "Table 8" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Differential cross-section for non-prompt chi_c2 production, measured in bins of chi_c2 pT, assuming unpolarised chi_c production. The measurements are not corrected for the branching fractions of the decays chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu-. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64242.v1/t9
title: "Table 9" of "Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS"

description: Fraction of prompt J/psi produced in feed-down from radiative chi_c decays as a function of J/psi pT, assuming unpolarised chi_c production. The uncertainty envelope associated with the unknown chi_c spin alignment is also shown. The spin-alignment envelope assumes that prompt J/psi are produced unpolarised and represents the maximum uncertainty due to the unknown chi_c spin alignment.
description: CERN-LHC. The prompt and non-prompt production cross-sections for the chi_c1 and chi_c2 charmonium states are measured in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the LHC using 4.5 fb-1 of integrated luminosity. The chi_c states are reconstructed through the radiative decay chi_c --&gt; J/psi + gamma (with J/psi --&gt; mu+ mu-) where photons are reconstructed from gamma --&gt; e+ e- conversions. The differential cross sections for both prompt and non-prompt production of the chi_c1 and chi_c2 states are measured as a function of both J/psi and chi_c pT. The fraction of prompt J/psi produced in feed-down from radiative chi_c decays is also measured in addition to the production rate of chi_c2 relative to chi_c1, for both prompt and non-prompt chi_c production. The measurements have not been corrected for the chi_c --&gt; J/psi + gamma and J/psi --&gt; mu+ mu- branching fractions. All measurements are made within the fiducial region ABS(YRAP(J/PSI)) &lt; 0.75.
DOI: 10.17182/hepdata.64260.v1/t1
title: "Table 1" of "Observation of $Z$ production in proton-lead collisions at LHCb"

description: The measured Z production cross-sections in proton-lead collisions, measured in the fiducial region defined in the table, in the forward and backward directions. The statistical uncertainty is defined as the 68% confidence interval with symmetric coverage assuming that the number of candidates follows a Poisson distribution.
description: CERN-LHC. The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of sqrt(sNN) = 5 TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb^{-1} collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities 2.0 &lt; ETARAP(MU+-) &lt; 4.5 and transverse momenta PT(MU+-) &gt; 20 GeV. The invariant dimuon mass is restricted to the range 60 &lt; M(MU+ MU-) &lt; 120 GeV. 

The measured Z --&gt; MU+ MU- cross sections in the forward and backward directions are presented. The measured forward-backward ratio, defined for a given value of sqrt(sNN) as R(FB) = SIG(+ABS(YRAP)) / SIG(-ABS(YRAP)) where here ABS(YRAP) represents the overlap region, is also presented.
DOI: 10.17182/hepdata.64260.v1/t2
title: "Table 2" of "Observation of $Z$ production in proton-lead collisions at LHCb"

description: The forward-backward ratio measured in the overlap region 2.5 &lt; ABS(YRAP) &lt; 4.0. The first uncertainty is statistical, defined as the 68% confidence interval with symmetric coverage. The second uncertainty is systematic and includes the uncertainty on the acceptance correction factor, BETA, for the difference in the detector acceptance of the muons between the forward and backward directions.
description: CERN-LHC. The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of sqrt(sNN) = 5 TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb^{-1} collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities 2.0 &lt; ETARAP(MU+-) &lt; 4.5 and transverse momenta PT(MU+-) &gt; 20 GeV. The invariant dimuon mass is restricted to the range 60 &lt; M(MU+ MU-) &lt; 120 GeV. 

The measured Z --&gt; MU+ MU- cross sections in the forward and backward directions are presented. The measured forward-backward ratio, defined for a given value of sqrt(sNN) as R(FB) = SIG(+ABS(YRAP)) / SIG(-ABS(YRAP)) where here ABS(YRAP) represents the overlap region, is also presented.
DOI: 10.17182/hepdata.64263.v1/t1
title: "Table 1" of "Measurement of prompt J/psi pair production in pp collisions at sqrt(s) = 7 TeV"

description: Differential cross section D(SIG)/DM(J/PSI J/PSI) in bins of the J/PSI pair invariant mass, M(J/PSI J/PSI).
description: CERN-LHC. Production of prompt J/PSI meson pairs in proton-proton collisions at sqrt(s) = 7 TeV is measured with the CMS experiment at the LHC using a data sample taken during 2011 corresponding to an integrated luminosity of about 4.7 fb^{-1}. The two J/PSI mesons are fully reconstructed via their decays into MU+ MU- pairs. This observation provides for the first time access to the high-transverse-momentum region of J/PSI pair production where model predictions are not yet established. 

The total and differential cross sections are measured in a phase space defined by the individual J/PSI transverse momentum, PT(J/PSI), and rapidity ABS(YRAP(J/PSI)): 
 - ABS(YRAP(J/PSI)) &lt; 1.2 for PT(J/PSI) &gt; 6.5 GeV; 
 - 1.2 &lt; ABS(YRAP(J/PSI)) &lt; 1.43 for a PT(J/PSI) threshold that scales linearly with ABS(YRAP(J/PSI)) from 6.5 &lt; PT(J/PSI) &lt; 4.5 GeV; 
 - 1.43 &lt; ABS(YRAP(J/PSI)) &lt; 2.2 for PT(J/PSI) &gt; 4.5 GeV. 

The total cross section, assuming unpolarized prompt J/PSI pair production is 1.49 +- 0.07 (stat.) +- 0.13 (syst.) nb. Different assumptions about the J/PSI polarization imply modifications to the cross section ranging from -31% to +27%. The differential cross section is measured as a function of the J/PSI pair invariant mass, M(J/PSI J/PSI), the absolute rapidity difference between J/PSI mesons, ABS(DELTA(YRAP)), and the transverse momentum of the J/PSI pair, PT(J/PSI J/PSI).
DOI: 10.17182/hepdata.64263.v1/t2
title: "Table 2" of "Measurement of prompt J/psi pair production in pp collisions at sqrt(s) = 7 TeV"

description: Differential cross section D(SIG)/DABS(DELTA(YRAP)) in bins of the absolute rapidity difference between J/PSI mesons, ABS(DELTA(YRAP)).
description: CERN-LHC. Production of prompt J/PSI meson pairs in proton-proton collisions at sqrt(s) = 7 TeV is measured with the CMS experiment at the LHC using a data sample taken during 2011 corresponding to an integrated luminosity of about 4.7 fb^{-1}. The two J/PSI mesons are fully reconstructed via their decays into MU+ MU- pairs. This observation provides for the first time access to the high-transverse-momentum region of J/PSI pair production where model predictions are not yet established. 

The total and differential cross sections are measured in a phase space defined by the individual J/PSI transverse momentum, PT(J/PSI), and rapidity ABS(YRAP(J/PSI)): 
 - ABS(YRAP(J/PSI)) &lt; 1.2 for PT(J/PSI) &gt; 6.5 GeV; 
 - 1.2 &lt; ABS(YRAP(J/PSI)) &lt; 1.43 for a PT(J/PSI) threshold that scales linearly with ABS(YRAP(J/PSI)) from 6.5 &lt; PT(J/PSI) &lt; 4.5 GeV; 
 - 1.43 &lt; ABS(YRAP(J/PSI)) &lt; 2.2 for PT(J/PSI) &gt; 4.5 GeV. 

The total cross section, assuming unpolarized prompt J/PSI pair production is 1.49 +- 0.07 (stat.) +- 0.13 (syst.) nb. Different assumptions about the J/PSI polarization imply modifications to the cross section ranging from -31% to +27%. The differential cross section is measured as a function of the J/PSI pair invariant mass, M(J/PSI J/PSI), the absolute rapidity difference between J/PSI mesons, ABS(DELTA(YRAP)), and the transverse momentum of the J/PSI pair, PT(J/PSI J/PSI).
DOI: 10.17182/hepdata.64263.v1/t3
title: "Table 3" of "Measurement of prompt J/psi pair production in pp collisions at sqrt(s) = 7 TeV"

description: Differential cross section D(SIG)/DPT(J/PSI J/PSI) in bins of the transverse momentum of the J/PSI pair, PT(J/PSI J/PSI).
description: CERN-LHC. Production of prompt J/PSI meson pairs in proton-proton collisions at sqrt(s) = 7 TeV is measured with the CMS experiment at the LHC using a data sample taken during 2011 corresponding to an integrated luminosity of about 4.7 fb^{-1}. The two J/PSI mesons are fully reconstructed via their decays into MU+ MU- pairs. This observation provides for the first time access to the high-transverse-momentum region of J/PSI pair production where model predictions are not yet established. 

The total and differential cross sections are measured in a phase space defined by the individual J/PSI transverse momentum, PT(J/PSI), and rapidity ABS(YRAP(J/PSI)): 
 - ABS(YRAP(J/PSI)) &lt; 1.2 for PT(J/PSI) &gt; 6.5 GeV; 
 - 1.2 &lt; ABS(YRAP(J/PSI)) &lt; 1.43 for a PT(J/PSI) threshold that scales linearly with ABS(YRAP(J/PSI)) from 6.5 &lt; PT(J/PSI) &lt; 4.5 GeV; 
 - 1.43 &lt; ABS(YRAP(J/PSI)) &lt; 2.2 for PT(J/PSI) &gt; 4.5 GeV. 

The total cross section, assuming unpolarized prompt J/PSI pair production is 1.49 +- 0.07 (stat.) +- 0.13 (syst.) nb. Different assumptions about the J/PSI polarization imply modifications to the cross section ranging from -31% to +27%. The differential cross section is measured as a function of the J/PSI pair invariant mass, M(J/PSI J/PSI), the absolute rapidity difference between J/PSI mesons, ABS(DELTA(YRAP)), and the transverse momentum of the J/PSI pair, PT(J/PSI J/PSI).
DOI: 10.17182/hepdata.64267.v1/t1
title: "Table 1" of "Cross Section and Transverse Single-Spin Asymmetry of $\eta$ Mesons in $p^{\uparrow}+p$ Collisions at $\sqrt{s}=200$ GeV at Forward Rapidity"

description: The measured ETA meson cross section, E*D3(SIG)/DP**3, versus PT at forward rapidity. The statistical and systematic uncertainties are type-A and type-B uncertainties respectively.
description: BNL-RHIC. We present a measurement of the cross section and transverse single-spin asymmetry ASYM for ETA mesons at forward pseudorapidity (3.0 &lt; ABS(ETARAP) &lt; 3.8). The data used in this analysis is from P(UP) P collisions at sqrt(s) = 200 GeV during the 2008 data taking period at RHIC. A total integrated luminosity of 6.65 pb^{-1} was sampled for these results. 

The invariant cross section of ETA mesons as a function of transverse momentum, PT, is presented. The asymmetry of the peak region, ASYM(PEAK), and the asymmetry of the background regions, ASYM(BG), measured as functions of XF from a high-PT triggered (the 4X4B triggered) dataset are presented. The asymmetries ASYM have been measured as a function of Feynman-x, XF, in the range 0.2 &lt; ABS(XF) &lt; 0.7 as well as a function of transverse momentum in the range 1.0 &lt; PT &lt; 4.5 GeV. The asymmetry averaged over positive XF is MEAN(ASYM) = 0.061 +- 0.014.
DOI: 10.17182/hepdata.64267.v1/t2
title: "Table 2" of "Cross Section and Transverse Single-Spin Asymmetry of $\eta$ Mesons in $p^{\uparrow}+p$ Collisions at $\sqrt{s}=200$ GeV at Forward Rapidity"

description: ASYM(PEAK) and ASYM(BG) for ETA mesons measured as a function of XF in the range 0.3 &lt; ABS(XF) &lt; 0.7 from the 4X4B triggered dataset. The values represented are the weighted mean of the South and North MPC (Muon Piston Calorimeter). The uncertainties listed are statistical only.
description: BNL-RHIC. We present a measurement of the cross section and transverse single-spin asymmetry ASYM for ETA mesons at forward pseudorapidity (3.0 &lt; ABS(ETARAP) &lt; 3.8). The data used in this analysis is from P(UP) P collisions at sqrt(s) = 200 GeV during the 2008 data taking period at RHIC. A total integrated luminosity of 6.65 pb^{-1} was sampled for these results. 

The invariant cross section of ETA mesons as a function of transverse momentum, PT, is presented. The asymmetry of the peak region, ASYM(PEAK), and the asymmetry of the background regions, ASYM(BG), measured as functions of XF from a high-PT triggered (the 4X4B triggered) dataset are presented. The asymmetries ASYM have been measured as a function of Feynman-x, XF, in the range 0.2 &lt; ABS(XF) &lt; 0.7 as well as a function of transverse momentum in the range 1.0 &lt; PT &lt; 4.5 GeV. The asymmetry averaged over positive XF is MEAN(ASYM) = 0.061 +- 0.014.
DOI: 10.17182/hepdata.64267.v1/t3
title: "Table 3" of "Cross Section and Transverse Single-Spin Asymmetry of $\eta$ Mesons in $p^{\uparrow}+p$ Collisions at $\sqrt{s}=200$ GeV at Forward Rapidity"

description: ASYM for ETA mesons measured as a function of XF in the range 0.2 &lt; ABS(XF) &lt; 0.7. Uncertainties listed are those due to the statistics, the XF uncorrelated uncertainties due to extracting the yields, and the correlated relative luminosity uncertainty.
description: BNL-RHIC. We present a measurement of the cross section and transverse single-spin asymmetry ASYM for ETA mesons at forward pseudorapidity (3.0 &lt; ABS(ETARAP) &lt; 3.8). The data used in this analysis is from P(UP) P collisions at sqrt(s) = 200 GeV during the 2008 data taking period at RHIC. A total integrated luminosity of 6.65 pb^{-1} was sampled for these results. 

The invariant cross section of ETA mesons as a function of transverse momentum, PT, is presented. The asymmetry of the peak region, ASYM(PEAK), and the asymmetry of the background regions, ASYM(BG), measured as functions of XF from a high-PT triggered (the 4X4B triggered) dataset are presented. The asymmetries ASYM have been measured as a function of Feynman-x, XF, in the range 0.2 &lt; ABS(XF) &lt; 0.7 as well as a function of transverse momentum in the range 1.0 &lt; PT &lt; 4.5 GeV. The asymmetry averaged over positive XF is MEAN(ASYM) = 0.061 +- 0.014.