0000000000714594

AUTHOR

R. P. Redwine

showing 4 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
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The OLYMPUS Experiment

2014

Nuclear instruments & methods in physics research / A 741, 1 - 17 (2014). doi:10.1016/j.nima.2013.12.035

two-photon [exchange]Physics - Instrumentation and DetectorsPhysics::Instrumentation and DetectorsHadronluminosity: monitoringRecoil4-MOMENTUM TRANSFERSNuclear Experiment (nucl-ex)Nuclear ExperimentInstrumentationNuclear ExperimentPhysicsElastic scatteringLuminosity (scattering theory)ELECTROMAGNETIC FORM-FACTORSInstrumentation and Detectors (physics.ins-det)elastic scattering [cross section]positron p: elastic scatteringAntimatterdrift chamberelastic scattering [electron p]target [hydrogen]proportional chamberCROSS-SECTIONNuclear and High Energy PhysicsELECTRON-PROTONDESY DORIS StorFOS: Physical sciencesmonitoring [luminosity]time-of-flight530electron p: elastic scatteringNuclear physicsCross section (physics)RATIO(GEV/C)(2)p: form factor: ratiocalorimeterddc:530cross section: elastic scatteringactivity reporthydrogen: targetexchange: two-photonScatteringPOSITRONSDESYelastic scattering [positron p]magnetic spectrometerELECTROMAGNETIC FORM-FACTORS; PROTON ELASTIC-SCATTERING; 4-MOMENTUM TRANSFERS; ELECTRON-PROTON; CROSS-SECTION; RATIO; (GEV/C)(2); POSITRONSform factor: ratio [p]gas electron multiplierPhysics::Accelerator PhysicsPROTON ELASTIC-SCATTERINGHigh Energy Physics::Experiment
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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
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Measurement of the Charge-Averaged Elastic Lepton-Proton Scattering Cross Section by the OLYMPUS Experiment

2020

Physical review letters 126(16), 162501 (1-6) (2021). doi:10.1103/PhysRevLett.126.162501

ProtonPhysics::Instrumentation and Detectorselectromagnetic [calorimeter]elastic scatteringGeneral Physics and AstronomyElectronmomentum transfer dependence01 natural sciencesEconomicaelectromagnetic form factorsDESY LabNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentPhysicsElastic scatteringLuminosity (scattering theory)Form factor (quantum field theory)elastic scattering [cross section]recoil [p]beam [positron]target [hydrogen]electromagnetic [form factor]electron-proton scatteringSocio-culturaleFOS: Physical sciences530electron p: scatteringNuclear physicsCross section (physics)PE2_2PE2_10103 physical sciencesform factor [p]p: recoilddc:530cross section: elastic scattering010306 general physicsPE2_3hydrogen: targetNuclear Physicspositron p: scatteringAmbientalepositron-proton scatteringDESYscattering [electron p]form factor: electromagneticscattering [positron p]positron: beamcalorimeter: electromagneticp: form factorPhysics::Accelerator PhysicsHigh Energy Physics::Experimentspectrometerexperimental resultsLeptonPhysical Review Letters
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