Measurement of elastic electron scattering from the proton at high momentum transfer

Journal Article · Mon Jul 14 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.174· OSTI ID:5428018

Arnold, R G; Bosted, P E; Chang, C C; Gomez, J; Katramatou, A T; Martoff, C J; Petratos, G G; Rahbar, A A; Rock, S E; Sill, A F; Szalata, Z M; Sherden, D J; Lambert, J M; Lombard-Nelsen, R M

We have performed absolute measurements of the differential cross section for elastic e-italic-p-italic scattering in the range of momentum transfer from Q-italic/sup 2/ = 2.9 to 31.3 (GeV/c-italic)/sup 2/. Combined statistical and systematic uncertainties in the cross-section measurements ranged from 3% at low Q-italic/sup 2/ to 19% at high Q-italic/sup 2/. These data have been used to extract the proton magnetic form factor G-italic/sub M-italic//sup p-italic/(Q/sup 2/). The results show a smooth decrease of Q-italic/sup 4/G/sub M//sup p/ with momentum transfer above Q-italic/sup 2/ = 10 (GeV/c-italic)/sup 2/. These results are compared with recent predictions of perturbative QCD.

• Research Organization: Department of Physics, The American University, Washington D.C. 20016
• OSTI ID: 5428018
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:2; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
CORRECTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON-NUCLEON INTERACTIONS
ELECTRON-PROTON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
EXPERIMENTAL DATA
FERMIONS
FIELD THEORIES
FORM FACTORS
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
HADRONS
INFORMATION
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MOMENTUM TRANSFER
MONTE CARLO METHOD
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PERTURBATION THEORY
PROTONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RADIATIVE CORRECTIONS
SCATTERING
SUM RULES