Measurement of the Charged Pion Electromagnetic Form Factor

Details Measurement of the Charged Pion Electromagnetic Form Factor Measurement of the Charged Pion Electromagnetic Form Factor

2000-10-16

arxiv.org/abs/nucl-ex/0010009v2

Phys.Rev.Lett.86:1713-1716,2001

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.86.1713

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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