Determination of the pion charge form factor at Q2=1.60 and 2.45 (GeV/c)2

The H-1(e,e(')pi(+))n cross section was measured at four-momentum transfers of Q(2)=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV. The charged pion form factor (F-pi) was extracted from the data by comparing the separated longitudinal pion electroproduction cross section to a Regge model prediction in which F-pi is a free parameter. The results indicate that the pion form factor deviates from the charge-radius constrained monopole form at these values of Q(2) by one sigma, but is still far from its perturbative quantum chromodynamics prediction.