Knockout of charged ρ mesons from a nucleon by high-energy electrons in the quasielastic-kinematics region with the participation of transverse virtual photons
| Autor: | D. K. Fedorov, Igor T. Obukhovsky, L. L. Sviridova, V. G. Neudatchin |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Nuclear reaction
Physics Nuclear and High Energy Physics Particle physics Meson High Energy Physics::Phenomenology Nuclear Theory Hadron Virtual particle Elementary particle Atomic and Molecular Physics and Optics Nuclear physics High Energy Physics::Experiment Nuclear Experiment Nucleon Lepton Boson |
| Zdroj: | Physics of Atomic Nuclei. 73:1203-1206 |
| ISSN: | 1562-692X 1063-7788 |
| DOI: | 10.1134/s1063778810070148 |
| Popis: | The electroproduction of charged ρ mesons on a nucleon under conditions of quasielastic kinematics (Q2 = 2−3 (GeV/c)2, W = 2 GeV) is considered. Dominant diagrams are taken into account. It is shown that the transverse cross section for ρ-meson knockout, in just the same was as the respective longitudinal cross section, is dominated by the t-pole diagram involving a virtual ρ meson. This means that the leading contribution to the process comes from direct ρ-meson knockout. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|