0000000001300586

AUTHOR

P. Zhu

showing 43 related works from this author

Rosenbluth Separation of the π^{0} Electroproduction Cross Section.

2016

We present deeply virtual $\pi^0$ electroproduction cross-section measurements at $x_B$=0.36 and three different $Q^2$--values ranging from 1.5 to 2 GeV$^2$, obtained from experiment E07-007 that ran in the Hall A at Jefferson Lab. The Rosenbluth technique was used to separate the longitudinal and transverse responses. Results demonstrate that the cross section is dominated by its transverse component, and thus is far from the asymptotic limit predicted by perturbative Quantum Chromodynamics. An indication of a non-zero longitudinal contribution is provided by the interference term $\sigma_{LT}$ also measured. Results are compared with several models based on the leading twist approach of G…

Particle physicslongitudinalinterferenceGeneral Physics and Astronomyparton: distribution functionPartonhard exclusive electroproduction; mesons[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesHigh Energy Physics - ExperimentNuclear physicspi: distribution amplitudegeneralized parton distribution: transversityPiondeep inelastic scattering0103 physical scienceshard exclusive electroproduction[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]quantum chromodynamics: perturbation theory010306 general physicsNuclear ExperimentNuclear ExperimentmesonsQuantum chromodynamicsPhysics010308 nuclear & particles physicsscattering amplitudemomentum transferSigmanucleon: generalized parton distributionScattering amplitudetransverseDistribution (mathematics)Amplitudepi0: electroproductiontwistHigh Energy Physics::ExperimentNucleonchannel cross section: measuredJefferson Labexperimental resultsPhysical review letters
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Rosenbluth separation of the $\pi^0$ Electroproduction Cross Section off the Neutron

2017

We report the first longitudinal/transverse separation of the deeply virtual exclusive $\pi^0$ electroproduction cross section off the neutron and coherent deuteron. The corresponding four structure functions $d\sigma_L/dt$, $d\sigma_T/dt$, $d\sigma_{LT}/dt$ and $d\sigma_{TT}/dt$ are extracted as a function of the momentum transfer to the recoil system at $Q^2$=1.75 GeV$^2$ and $x_B$=0.36. The $ed \to ed\pi^0$ cross sections are found compatible with the small values expected from theoretical models. The $en \to en\pi^0$ cross sections show a dominance from the response to transversely polarized photons, and are in good agreement with calculations based on the transversity GPDs of the nucle…

longitudinalNuclear Theoryn: structure function[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]momentum transfer dependenceelectron n: scatteringHigh Energy Physics - Experimentgeneralized parton distribution: transversity[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]hard exclusive electroproductionrecoil[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]polarization: transverse[ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear ExperimentNuclear Experimentmesonsflavorgeneralized parton distributionsscatteringgeneralized parton distributions; hard exclusive electroproduction; mesons; scatteringdeuteron: structure functionelectron deuteron --> electron deuteron pi0electron deuteron: deep inelastic scatteringnucleon: generalized parton distributionphoton: polarizationcoherencepi0: electroproductionHigh Energy Physics::Experimentexperimental results
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Deeply virtual compton scattering off the neutron.

2007

The present experiment exploits the interference between the Deeply Virtual Compton Scattering (DVCS) and the Bethe-Heitler processes to extract the imaginary part of DVCS amplitudes on the neutron and on the deuteron from the helicity-dependent D$({\vec e},e'\gamma)X$ cross section measured at $Q^2$=1.9 GeV$^2$ and $x_B$=0.36. We extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to $E_q$, the least constrained GPD. A model dependent constraint on the contribution of the up and down quarks to the nucleon spin is deduced.

QuarkPhysicsParticle physicsPhoton010308 nuclear & particles physicsScatteringHigh Energy Physics::PhenomenologyNuclear TheoryCompton scatteringFOS: Physical sciencesGeneral Physics and AstronomyVirtual particleParton[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physicsIsospin0103 physical sciences25.30.-c 13.60.Fz 13.85.Hd 14.20.DhHigh Energy Physics::ExperimentNuclear Experiment (nucl-ex)010306 general physicsNucleonNuclear ExperimentNuclear ExperimentPhysical review letters
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"Table 28" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 36" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 17" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 40" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 39" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 9" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 22" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 31" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 34" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 33" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 6" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 11" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 37" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 29" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 1" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 21" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 25" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 2" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 32" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 5" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 16" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 24" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 23" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 14" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 26" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 20" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 8" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 10" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 13" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 27" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
researchProduct

"Table 38" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 35" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 15" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 30" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 19" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 12" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 4" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 3" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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"Table 18" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity dependent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity dependent cross sectionExclusive
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"Table 7" of "A glimpse of gluons through deeply virtual compton scattering on the proton"

2017

Beam helicity independent cross sections. The first systematic uncertainty is the combined correlated systematic uncertainty, the second is the point-to-point systematic uncertainty to add quadratically to the statistical uncertainty.

D4SIG/DQ**2/DX/DT/DPHIDeeply Virtual Compton ScatteringE- P --> E- GAMMA PBeam helicity independent cross sectionExclusive
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