The form factor of the pion in "point-form" of relativistic dynamics revisited

Details The form factor of the pion in "point-form" of relativistic dynamics revisited The form factor of the pion in "point-form" of relativistic dynamics revisited

2003-01-27

arxiv.org/abs/hep-ph/0301235v1

Phys.Lett. B574 (2003) 201-209

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 3 eps figures

Scientific paper

The electromagnetic form factor of the pion is calculated in the "point-form" of relativistic quantum mechanics using simple, phenomenological wave functions. It is found that the squared charge radius of the pion is predicted one order of magnitude larger than the experimental value and the asymptotic behavior expected from QCD cannot be reproduced. The origin of these discrepancies is analyzed. The present results confirm previous ones obtained from a theoretical model and call for major improvements in the implementation of the "point-form" approach.

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