Eur. Phys. J. C 28, 329-333 (2003)
DOI: 10.1140/epjc/s2003-01187-3

Experimental tests of non-perturbative pion wave functions

D. Ashery¹ and H.-C. Pauli<sup>2

1</sup>  School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Israel
²  Max-Planck-Institut für Kernphysik, 69029 Heidelberg, Germany

(Received: 15 January 2003 / Published online: 14 April 2003 )

Abstract
We use the transverse-momentum dependence of the cross section for the diffractive dissociation of high energy pions to two jets to study some non-perturbative light-cone wave functions of the pion. We compare the predictions for this distribution by Gaussian and Coulomb wave functions as well as the wave function derived from a solution of the light-cone Hamiltonian in the singlet model. We conclude that this experimentally measured information provides a powerful tool for these studies.

© Società Italiana di Fisica, Springer-Verlag 2003