0000000000354331

AUTHOR

Or Hen

showing 3 related works from this author

Comparing proton momentum distributions in A = 2 and 3 nuclei via 2H 3H and 3He (e,e′p) measurements

2019

We report the first measurement of the $(e,e'p)$ reaction cross-section ratios for Helium-3 ($^3$He), Tritium ($^3$H), and Deuterium ($d$). The measurement covered a missing momentum range of $40 \le p_{miss} \le 550$ MeV$/c$, at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV$/c$)$^2$) and $x_B>1$, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The data is compared with plane-wave impulse approximation (PWIA) calculations using realistic spectral functions and momentum distributions. The measured and PWIA-calculated cross-section ratios for $^3$He$/d$ and $^3$H$/d$ extend to just above the typical nucleon Fermi-momentum ($k_F \approx 250$ …

production [pi]Nuclear and High Energy Physicsdata analysis methodPhotonNuclear TheoryNuclear TheoryinterferenceFOS: Physical sciencesElectronImpulse (physics)Inelastic scattering01 natural sciencesxperimental results | Jefferson Lab | electron p: scattering | parity: violation | inelastic scattering | structure function | interference | photon | Z0 | pi: production | spin: asymmetry | data analysis methodNuclear Theory (nucl-th)structure function0103 physical sciencesZ0Nuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentPhysics010308 nuclear & particles physicsMomentum transferphotoninelastic scatteringscattering [electron p]Eikonal approximationNATURAL SCIENCES. Physics.lcsh:QC1-999PRIRODNE ZNANOSTI. Fizika.Deuteriumxperimental resultsHigh Energy Physics::Experimentviolation [parity]Atomic physicsNucleonasymmetry [spin]lcsh:PhysicsJefferson LabPhysics Letters B
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New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei

2012

We have measured the beam-normal single-spin asymmetry $A_n$ in the elastic scattering of 1-3 GeV transversely polarized electrons from $^1$H and for the first time from $^4$He, $^{12}$C, and $^{208}$Pb. For $^1$H, $^4$He and $^{12}$C, the measurements are in agreement with calculations that relate $A_n$ to the imaginary part of the two-photon exchange amplitude including inelastic intermediate states. Surprisingly, the $^{208}$Pb result is significantly smaller than the corresponding prediction using the same formalism. These results suggest that a systematic set of new $A_n$ measurements might emerge as a new and sensitive probe of the structure of heavy nuclei.

Elastic scatteringPhysics010308 nuclear & particles physicsScatteringmedia_common.quotation_subjectFOS: Physical sciencesGeneral Physics and AstronomyElastic electronchemistry.chemical_elementElectron[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesAsymmetryAmplitudechemistryExcited state0103 physical sciencesNuclear Experiment (nucl-ex)Atomic physics010306 general physicsNuclear ExperimentNuclear ExperimentHeliummedia_common
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Recent highlights from GENIE v3

2021

Funder: u.s. department of energy; doi: http://dx.doi.org/10.13039/100000015

interaction: modelGeneral Physics and AstronomyFOS: Physical sciencespi: production01 natural sciencesprogrammingdark matterHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]neutrino: scatteringGeneral Materials SciencePhysical and Theoretical Chemistry010306 general physicsnumerical calculationsneutrino: interactionneutrino nucleus: scattering010308 nuclear & particles physicsnew physicsfinal-state interactionHigh Energy Physics - Phenomenology[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]5106 Nuclear and Plasma Physics51 Physical Sciences5107 Particle and High Energy Physics
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