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A measurement of the space-like pion electromagnetic form factor

Authors
Journal
Nuclear Physics B
0550-3213
Publisher
Elsevier
Publication Date
Volume
277
Identifiers
DOI: 10.1016/0550-3213(86)90437-2

Abstract

Abstract The pion form factor has been measured in the space-like q 2 region 0.014 to 0.26 (GeV/ c) 2 by scattering 300 GeV pions from the electrons of a liquid hydrogen target. A detailed description is given of the apparatus, data analysis and corrections to the data. The mean square charge radius extracted from the data is model-dependent. We find that a form which includes a realistic description of the form factor phase gives a similar results to the naive pole form, and conclude 〈r 2 π〉 = 0.438±0.008 fm 2.

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