Measuring G{sup n}{sub E} at High Momentum Transfers

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Experiment E02-013 at Thomas Jefferson National Accelerator Facility will extend the measured range of the neutron electric form factor G{sup n}{sub E} to Q{sup 2}=3.4 (GeV/c){sup 2} through a measurement of the cross section asymmetry in the reaction {sup 3}{rvec H}e({rvec e}, e'n). Recent theoretical investigations, motivated by the results on the ratio of the proton electric and magnetic form factor, predict higher values of G{sup n}{sub E} compared to older predictions. The experiment utilizes a polarized {sup 3}He target and the polarized CEBAF electron beam. Scattered electrons will be detected in the BigBite spectrometer, recoiling neutrons in an array ... continued below

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243 Kilobytes pages

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Reitz, Bodo September 1, 2002.

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Experiment E02-013 at Thomas Jefferson National Accelerator Facility will extend the measured range of the neutron electric form factor G{sup n}{sub E} to Q{sup 2}=3.4 (GeV/c){sup 2} through a measurement of the cross section asymmetry in the reaction {sup 3}{rvec H}e({rvec e}, e'n). Recent theoretical investigations, motivated by the results on the ratio of the proton electric and magnetic form factor, predict higher values of G{sup n}{sub E} compared to older predictions. The experiment utilizes a polarized {sup 3}He target and the polarized CEBAF electron beam. Scattered electrons will be detected in the BigBite spectrometer, recoiling neutrons in an array of scintillators. The experimental and theoretical developments needed to perform the measurement and the extract G{sup n}{sub E} from {sup 3}He will be described. Concepts of extending the measurement of G{sup n}{sub E} to even higher momentum transfers will be discussed.

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243 Kilobytes pages

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  • 15th International Spin Physics Symposium (SPIN 2002), Long Island, NY (US), 09/09/2002--09/14/2002

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  • Report No.: JLAB-PHY-02-45
  • Report No.: DOE/ER/40150-2319
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 804052
  • Archival Resource Key: ark:/67531/metadc742093

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  • September 1, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • Feb. 5, 2016, 8:17 p.m.

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Reitz, Bodo. Measuring G{sup n}{sub E} at High Momentum Transfers, article, September 1, 2002; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc742093/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.