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Proton elastic form factor rations to Q = 3.5 GeV2 by polarization transfer

Punjabi, V and Fissum, Kevin LU (2005) In Physical Review C: covering nuclear physics 71.
Abstract
The ratio of the proton elastic electromagnetic form factors, GEp/GMp, was obtained by measuring Pt and P, the transverse and longitudinal recoil proton polarization components, respectively, for the elastic epepreaction in the four-momentum transfer squared range of 0.5 to 3.5 GeV2. In the single-photon exchange approximation, GEp/GMp is directly proportional to Pt/P. The simultaneous measurement of Pt and P in a polarimeter reduces systematic uncertainties. The results for GEp/GMp show a systematic decrease with increasing Q2, indicating for the first time a definite difference in the distribution of charge and magnetization in the proton. The data have been reanalyzed and their systematic uncertainties have become significantly smaller... (More)
The ratio of the proton elastic electromagnetic form factors, GEp/GMp, was obtained by measuring Pt and P, the transverse and longitudinal recoil proton polarization components, respectively, for the elastic epepreaction in the four-momentum transfer squared range of 0.5 to 3.5 GeV2. In the single-photon exchange approximation, GEp/GMp is directly proportional to Pt/P. The simultaneous measurement of Pt and P in a polarimeter reduces systematic uncertainties. The results for GEp/GMp show a systematic decrease with increasing Q2, indicating for the first time a definite difference in the distribution of charge and magnetization in the proton. The data have been reanalyzed and their systematic uncertainties have become significantly smaller than those reported previously. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C: covering nuclear physics
volume
71
publisher
American Physical Society
external identifiers
  • Scopus:27144455163
DOI
10.1103/PhysRevC.71.055202
language
English
LU publication?
yes
id
0f55f706-dc4a-419b-b048-e9afd03bd882 (old id 713720)
date added to LUP
2007-12-11 13:07:28
date last changed
2016-12-04 04:42:37
@misc{0f55f706-dc4a-419b-b048-e9afd03bd882,
  abstract     = {The ratio of the proton elastic electromagnetic form factors, GEp/GMp, was obtained by measuring Pt and P, the transverse and longitudinal recoil proton polarization components, respectively, for the elastic epepreaction in the four-momentum transfer squared range of 0.5 to 3.5 GeV2. In the single-photon exchange approximation, GEp/GMp is directly proportional to Pt/P. The simultaneous measurement of Pt and P in a polarimeter reduces systematic uncertainties. The results for GEp/GMp show a systematic decrease with increasing Q2, indicating for the first time a definite difference in the distribution of charge and magnetization in the proton. The data have been reanalyzed and their systematic uncertainties have become significantly smaller than those reported previously.},
  author       = {Punjabi, V and Fissum, Kevin},
  language     = {eng},
  publisher    = {ARRAY(0x8b23210)},
  series       = {	Physical Review C: covering nuclear physics},
  title        = {Proton elastic form factor rations to Q<sup/> = 3.5 GeV<sup>2</sup> by polarization transfer},
  url          = {http://dx.doi.org/10.1103/PhysRevC.71.055202},
  volume       = {71},
  year         = {2005},
}