The Q^2-Dependence of Nuclear Transparency for Exclusive $ρ^0$ Production
| dc.creator | HERMES Collaboration | |
| dc.creator | Airapetian, A. | |
| dc.date | 2002-09-26 | |
| dc.date.accessioned | 2026-07-07T12:01:51Z | |
| dc.date.available | 2026-07-07T12:01:51Z | |
| dc.description | Exclusive coherent and incoherent electroproduction of the $ρ^0$ meson from $^1$H and $^{14}$N targets has been studied at the HERMES experiment as a function of coherence length ($l_c$), corresponding to the lifetime of hadronic fluctuations of the virtual photon, and squared four-momentum of the virtual photon ($-Q^2$). The ratio of $^{14}$N to $^1$H cross sections per nucleon, known as nuclear transparency, was found to increase (decrease) with increasing coherence length for coherent (incoherent) $ρ^0$ electroproduction. For fixed coherence length, a rise of nuclear transparency with $Q^2$ is observed for both coherent and incoherent $ρ^0$ production, which is in agreement with theoretical calculations of color transparency. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0209072 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0209072 | |
| dc.identifier | Phys.Rev.Lett.90:052501,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.90.052501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207239 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | The Q^2-Dependence of Nuclear Transparency for Exclusive $ρ^0$ Production | |
| dc.type | text |