Diffractive photo- and leptoproduction of vector mesons $ρ$, $ρ'$ and $ρ''$
| dc.creator | Kulzinger, G. | |
| dc.creator | Dosch, H. G. | |
| dc.creator | Pirner, H. J. | |
| dc.date | 1998-06-12 | |
| dc.date | 1998-08-13 | |
| dc.date.accessioned | 2026-07-07T10:52:50Z | |
| dc.date.available | 2026-07-07T10:52:50Z | |
| dc.description | We calculate diffractive photo- and leptoproduction of $ρ$-, $ρ'$- and $ρ''$-mesons. The incoming photon dissociates into a $q\bar{q}$-dipole which scatters on the nucleon and transforms into a vector meson state. The scattering amplitude is calculated in non-perturbative QCD with the model of the stochastic vacuum. Assuming that the physical $ρ'$- and $ρ''$-mesons are mixed states of an active 2S-excitation and some residual hybrid state which cannot be produced diffractively in lowest order QCD, we obtain good agreement with the data, especially the markedly different spectrum in the $π^+π^-$-invariant mass for photoproduction and $e^+e^-$-annihilation. | |
| dc.description | 28 pages, LaTeX2e, 16 ps/eps figures included, accepted for publication in Eur.Phys.J.C; revised v2: one reference added, one typo corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9806352 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9806352 | |
| dc.identifier | Eur.Phys.J.C7:73-86,1999 | |
| dc.identifier | doi:10.1007/s100529800986 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/185289 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Diffractive photo- and leptoproduction of vector mesons $ρ$, $ρ'$ and $ρ''$ | |
| dc.type | text |