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Measurement of the Charged Pion Electromagnetic Form Factor

J. Volmer
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Abstract

Separated longitudinal and transverse structure functions for the reaction 1H(e,eprime pi+)n were measured in the momentum transfer region Q2=0.6-1.6 (GeV/c)**2 at a value of the invariant mass W=1.95 GeV. New values for the pion charge form factor were extracted from the longitudinal cross section by using a recently developed Regge model. The results indicate that the pion form factor in this region is larger than previously assumed and is consistent with a monopole parameterization fitted to very low Q2 elastic data.

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J. Volmer. 2001-03-15. Measurement of the Charged Pion Electromagnetic Form Factor. https://doi.org/10.1103/physrevlett.86.1713

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