Diffractive heavy vector meson production from the BFKL equation

Abstract

Diffractive heavy vector meson photoproduction accompanied by proton dissociation is studied for arbitrary momentum transfer. The process is described by the non-forward BFKL equation, for which a complete analytical solution is found, giving the scattering amplitude. The impact of non-leading corrections to the BFKL equation is also analysed. Results are compared to the HERA data on J/ψ production.

Small-x phenomenology – Summary of the 3rd Lund small-x workshop in 2004

“…The data, shown in Fig. 56, agree well with perturbative QCD calculations [255], based on the hard scales t and m cc , for two-gluon BFKL color singlet exchange. As illustrated in Fig.…”

“…. Diffractive vector meson production at large momentum transfer as described by perturbative QCD hard color singlet exchange via two gluons and a gluon ladder in the BFKL framework [255].…”

Hard Diffraction — 20 Years Later

“…The data, shown in Fig. 17, agree well with perturbative QCD calculations 24 (based on the hard scales t and m cc ) for two-gluon BFKL colour singlet exchange. As illustrated in Fig.…”

Diffractive vector meson production

“…The inner error bars correspond to the statistical error and the outer error bars are the statistical and systematic errors added in quadrature. The solid lines show the predictions from the BFKL model [307],the dashed-dotted curve is the result from the DGLAP model [308]. (197) suggests α IP (t) < 1 for |t| ∼ > 2 GeV 2 .…”