dorsal/arxiv
View SchemaPrecise determination of low-Q nucleon electromagnetic form factors and their impact on parity-violating e-p elastic scattering
| Authors | John Arrington, Ingo Sick |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0612079 |
| URL | https://arxiv.org/abs/nucl-th/0612079 |
| DOI | 10.1103/PhysRevC.76.035201 |
| Journal | Phys.Rev.C76:035201,2007 |
Abstract
The extraction of the strangeness form factors from parity violating elastic electron-proton scattering is sensitive to the electromagnetic form factors at low Q^2. We provide parameterizations for the form factors and uncertainties, including the effects of two-photon exchange corrections to the extracted EM form factors. We study effect of the correlations between different form factors, in particular as they impact the parity violating asymmetry and the extraction of the strangeness form factors. We provide a prescription to extract the strangeness form factors from the asymmetry that provides an excellent approximation of the full two-photon correction. The corrected form factors are also appropriate as input for other low-Q analyses, although the effects of correlations and two-photon exchange corrections may be different.
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"abstract": "The extraction of the strangeness form factors from parity violating elastic\nelectron-proton scattering is sensitive to the electromagnetic form factors at\nlow Q^2. We provide parameterizations for the form factors and uncertainties,\nincluding the effects of two-photon exchange corrections to the extracted EM\nform factors. We study effect of the correlations between different form\nfactors, in particular as they impact the parity violating asymmetry and the\nextraction of the strangeness form factors. We provide a prescription to\nextract the strangeness form factors from the asymmetry that provides an\nexcellent approximation of the full two-photon correction. The corrected form\nfactors are also appropriate as input for other low-Q analyses, although the\neffects of correlations and two-photon exchange corrections may be different.",
"arxiv_id": "nucl-th/0612079",
"authors": [
"John Arrington",
"Ingo Sick"
],
"categories": [
"nucl-th",
"hep-ph",
"nucl-ex"
],
"doi": "10.1103/PhysRevC.76.035201",
"journal_ref": "Phys.Rev.C76:035201,2007",
"title": "Precise determination of low-Q nucleon electromagnetic form factors and their impact on parity-violating e-p elastic scattering",
"url": "https://arxiv.org/abs/nucl-th/0612079"
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