Predictions fore+e−→J/ψηcwith light-cone wave functions

Light-cone wave functions of mesons

A review of light-cone, covariant and gauge-invariant wave-functions of mesons is presented. They are basic non-perturbative objects needed for hard exclusive processes and for the method of light-cone QCD sum rules. The emphasis is on the vector mesons and a new (model-independent) way of computing the mass corrections of vector-meson wave functions is given. Key-Words: Non-pertrubative QCD, C...

ψη c with Light - Cone Wave - Functions

Generalized Parton Distributions in Terms of Light-cone Wave Functions

The light-cone expansion is constructed by quantizing QCD at fixed lightcone time τ = t + z and forming the invariant light-cone Hamiltonian: H LC = P +P− − P 2 ⊥ where P± = P 0 ± P . The proton state, for example, satisfies: H LC |ψp〉 = M p |ψp〉. The expansion of the proton eigensolution |ψp〉 on the color-singlet B = 1, Q = 1 eigenstates {|n〉} of the free Hamiltonian H LC (g = 0) gives the lig...

Connecting generalized parton distributions and light-cone wave functions

The relation of generalized (skewed) quark distributions to nucleon wave functions is discussed in the context of light-cone quantization.

Measurement of Light-Cone Wave Functions by Diffractive Dissociation

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 π− mesons into di-jets are presented. The results show that the |qq̄〉 light-cone asymptotic wave function describes the data well for Q2 ∼ 10 (GeV/c)2 or more. Evidence for color transparency comes from a measurement of the A-d...