Eur. Phys. J. C 20, 71-76
DOI: 10.1007/s100520100642
On a possible estimation of the constituent-quark parameters from Jefferson Lab experiments on the pion form factor
A.F. Krutov1 and V.E. Troitsky21 Samara State University, Ac. Pavlov St., 1, 443011 Samara, Russia
2 Nuclear Physics Institute, Moscow State University, Vorobjevy Gory, 119899 Moscow, Russia
(Received: 3 April 2000 / Revised version: 25 February 2001 / Published online: 25 April 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )
Abstract
The charge form factor of the pion is calculated for
the momentum transfer range of the Jefferson Lab experiments.
The approach is based on the instant form of the
relativistic Hamiltonian dynamics. It is shown
that the form-factor dependence on the choice
of the model for the quark wave function in the pion is weak,
while the dependence on the constituent-quark mass
is rather significant. It is possible
to estimate the mass of the constituent quark and the sum of the
anomalous magnetic moments of the u- and 
-quarks from the
JLab experiments.
© Società Italiana di Fisica, Springer-Verlag 2001
