0000000000451303

AUTHOR

V. Ziskin

showing 3 related works from this author

Charge Form Factor of the Neutron at Low Momentum Transfer from theH→2(e→,e′n)H1Reaction

2008

We report new measurements of the neutron charge form factor at low momentum transfer using quasielastic electrodisintegration of the deuteron. Longitudinally polarized electrons at an energy of 850 MeV were scattered from an isotopically pure, highly polarized deuterium gas target. The scattered electrons and coincident neutrons were measured by the Bates Large Acceptance Spectrometer Toroid (BLAST) detector. The neutron form factor ratio ${G}_{E}^{n}/{G}_{M}^{n}$ was extracted from the beam-target vector asymmetry ${A}_{\mathrm{ed}}^{V}$ at four-momentum transfers ${Q}^{2}=0.14$, 0.20, 0.29, and $0.42\text{ }\text{ }(\mathrm{GeV}/c{)}^{2}$.

Physicsmedia_common.quotation_subjectNuclear TheoryMomentum transferForm factor (quantum field theory)General Physics and AstronomyCharge (physics)ElectronAsymmetryDeuteriumHigh Energy Physics::ExperimentNeutronAtomic physicsNuclear ExperimentEnergy (signal processing)media_commonPhysical Review Letters
researchProduct

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
researchProduct

The BLAST experiment

2009

The Bates large acceptance spectrometer toroid (BLAST) experiment was operated at the MIT-Bates Linear Accelerator Center from 2003 until 2005. The detector and experimental program were designed to study, in a systematic manner, the spin-dependent electromagnetic interaction in few-nucleon systems. As such the data will provide improved measurements for neutron, proton, and deuteron form factors. The data will also allow details of the reaction mechanism, such as the role of final state interactions, pion production, and resonances to be studied. The experiment used: a longitudinally polarized electron beam stored in the South Hall Storage Ring; a highly polarized, isotopically pure, inter…

Nuclear and High Energy PhysicsTracking detectorScintillator detectorCherenkov detectorNuclear TheoryLinear particle acceleratorlaw.inventionNuclear physicslawNeutron detectionSCATTERINGNeutronSPECTROMETERSTORAGE-RINGBLASTPHOTOEMISSIONNuclear ExperimentInstrumentationCherenkov radiationELECTRON-SPIN POLARIZATIONPhysicsPolarized beamSpectrometerPolarized targetDetectorGAASGAS-TARGETPERFORMANCEPOLARIMETERStorage ringStorage ringSYSTEMCherenkov detectorNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
researchProduct