Measurement of Light-Cone Wave Functions by Diffractive Dissociation

Details Measurement of Light-Cone Wave Functions by Diffractive Dissociation Measurement of Light-Cone Wave Functions by Diffractive Dissociation

2000-08-18

arxiv.org/abs/hep-ex/0008036v2

Nucl.Phys.Proc.Suppl. 90 (2000) 67-73; Nucl.Phys.Proc.Suppl. 108 (2002) 321-326

Physics

High Energy Physics

High Energy Physics - Experiment

Invited talk, X. International Light-Cone Meeting, HD2000, Heidelberg, June 2000. 10 pages. Modified ref. 10

Scientific paper

10.1016/S0920-5632(02)01354-3

Diffractive dissociation of particles can be used to study their light-cone wave function. Results from Fermilab experiment E791 for diffractive dissociation of 500 GeV/c $\pi^-$ mesons into di-jets are presented. The results show that the $|q\bar {q}>$ light-cone asymptotic wave function describes the data well for $Q^2 \sim 10 ~{\rm (GeV/c)^2}$ or more. Evidence for color transparency comes from a measurement of the $A$-dependence of the yield of the diffractive di-jets. It is proposed to carry out similar studies for the light-cone wave function of the photon.

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