Has the E791 experiment measured the pion wave function profile ?

Details Has the E791 experiment measured the pion wave function profile ? Has the E791 experiment measured the pion wave function profile ?

2001-03-28

arxiv.org/abs/hep-ph/0103295v3

Phys.Lett. B516 (2001) 116-122

Physics

High Energy Physics

High Energy Physics - Phenomenology

additional explanations inserted, the overall normalization corrected

Scientific paper

10.1016/S0370-2693(01)00849-8

The cross section of hard diffractive dissociation of the pion into two jets is calculated. It is obtained that the distribution of longitudinal momenta for jets is not simply proportional to the profile of the pion wave function, but depends on it in a complicated way. In particular, it is shown that, under the conditions of the E791 experiment, the momentum distribution of jets is similar in its shape for the asymptotic and CZ wave functions, and even the ratio of the differential cross sections is not far from unity.

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