Nonpartonic effects in pion electroproduction in the HERMES kinematical region
| dc.creator | Uleshchenko, V. | |
| dc.creator | Szczurek, A. | |
| dc.date | 2002-07-03 | |
| dc.date.accessioned | 2026-07-07T03:47:22Z | |
| dc.date.available | 2026-07-07T03:47:22Z | |
| dc.description | The presentation is concerned with higher twist corrections of nonpartonic origin to semi-inclusive observables in the kinematical region relevant for the HERMES experiment. We demonstrate a strong impact of the VDM-like interaction and the exclusive production of $ρ^0$ meson on the extraction of the $\bar d - \bar u$ asymmetry from charged pion DIS multiplicities. We also show that it is the exclusive-$ρ^0$ channel which accounts for the experimentally observed effect of the excess of charged over neutral pions produced at large $z$. | |
| dc.description | A talk presented at DIS2002, 30 April - 4 May 2002, Cracow | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0207049 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0207049 | |
| dc.identifier | Acta Phys.Polon. B33 (2002) 3299-3304 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41641 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Nonpartonic effects in pion electroproduction in the HERMES kinematical region | |
| dc.type | text |