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Title: Nucleon form factors above 6 GeV

Abstract

Describes the results from a preliminary analysis of an elastic electron-proton scattering experiment. We have measured cross sections for e-p scattering in the range of q{sup 2} from 0.7 to 25.0 (GeV/c){sup 2}, providing a large region of overlap with previous measurements. In this experiment we measure the cross section by observing electrons scattered from a beam passing through a liquid hydrogen target. The scattered particles are momentum analyzed by a magnetic spectrometer and identified as electrons in a total absorption shower counter. Data have been obtain with primary electron energies from 4.0 to 17.8 GeV and at scattering angles from 12.5 to 35.0 degrees. In general, only one measurement of a cross section has been made at each momentum transfer. In these circumstances, separation of the electric and magnetic form factors (G{sub E} and G{sub M}) cannot be made from our data. However, since the relation G{sub E} = G{sub M}/{mu} has been shown to hold at low momentum transfers and the contribution of G{sub E} to the cross section falls off rapidly with increasing q{sup 2}, we are able to indicate the behavior of the magnetic form factor at high momentum transfers.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, CA (United States)
Sponsoring Org.:
US - Atomic Energy Commission (AEC)
OSTI Identifier:
4572534
Report Number(s):
SLAC-PUB-372; CONF-670923-4
NSA Number:
NSA-22-011569
DOE Contract Number:  
AT(04-3)-515
Resource Type:
Technical Report
Resource Relation:
Other Information: From 3rd International Symposium on Electron and Photon Interactions at High Energies, Stanford, Calif. UNCL. Orig. Receipt Date: 31-DEC-68
Country of Publication:
United States
Language:
English
Subject:
N34110* -Physics (High Energy)-Particle Interactions & Properties (Experimental)-Electromagnetic; ANGULAR DISTRIBUTION; COUNTERS; CROSS SECTIONS; ELASTIC SCATTERING; ELECTRONS; FORM FACTOR; GEV RANGE; INTERACTIONS; MOMENTUM; PROTONS; SPECTROMETERS; PROTONS/interactions e + p $Yields$ e + p at 0.7 to 25.0 GeV/c, magnetic spectrometer and total-absorption shower counter study of cross sections for, (E); NUCLEONS/form factors above 6 GeV, (E); ELECTRONS/ interactions e + p $Yields$ e + p at 0.7 to 25.0 GeV/c, magnetic spectrometer and total-absorption shower counter study of cross sections for, (E); Particle Accelerators

Citation Formats

Taylor, R. E.. Nucleon form factors above 6 GeV. United States: N. p., 1967. Web. doi:10.2172/4572534.
Taylor, R. E.. Nucleon form factors above 6 GeV. United States. doi:10.2172/4572534.
Taylor, R. E.. Fri . "Nucleon form factors above 6 GeV". United States. doi:10.2172/4572534. https://www.osti.gov/servlets/purl/4572534.
@article{osti_4572534,
title = {Nucleon form factors above 6 GeV},
author = {Taylor, R. E.},
abstractNote = {Describes the results from a preliminary analysis of an elastic electron-proton scattering experiment. We have measured cross sections for e-p scattering in the range of q{sup 2} from 0.7 to 25.0 (GeV/c){sup 2}, providing a large region of overlap with previous measurements. In this experiment we measure the cross section by observing electrons scattered from a beam passing through a liquid hydrogen target. The scattered particles are momentum analyzed by a magnetic spectrometer and identified as electrons in a total absorption shower counter. Data have been obtain with primary electron energies from 4.0 to 17.8 GeV and at scattering angles from 12.5 to 35.0 degrees. In general, only one measurement of a cross section has been made at each momentum transfer. In these circumstances, separation of the electric and magnetic form factors (G{sub E} and G{sub M}) cannot be made from our data. However, since the relation G{sub E} = G{sub M}/{mu} has been shown to hold at low momentum transfers and the contribution of G{sub E} to the cross section falls off rapidly with increasing q{sup 2}, we are able to indicate the behavior of the magnetic form factor at high momentum transfers.},
doi = {10.2172/4572534},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 1967},
month = {Fri Sep 01 00:00:00 EDT 1967}
}

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