Polarization effects in the reaction $e^++e^-\to ρ^+ +ρ^- $ and determination of the $ρ-$ meson form factors in the time--like region
| dc.creator | Adamuščín, C. | |
| dc.creator | Gakh, G. I. | |
| dc.creator | Tomasi-Gustafsson, E. | |
| dc.date | 2007-06-08 | |
| dc.date.accessioned | 2026-07-07T12:13:33Z | |
| dc.date.available | 2026-07-07T12:13:33Z | |
| dc.description | The electron positron annihilation reaction into four pion production has been studied, through the channel $e^++e^-\to \bar ρ+ρ$. The differential (and total) cross sections and various polarization observables for this reaction have been calculated in terms of the electromagnetic form factors of the corresponding $γ^*ρρ$ current. The elements of the spin--density matrix of the $ρ-$meson were also calculated. Numerical estimations have been done, with the help of phenomenological form factors obtained in the space--like region of the momentum transfer squared and analytically extended to the time-like region. | |
| dc.description | 19 pages, 2 figures, to appear in Phys Rev C | |
| dc.identifier | https://arxiv.org/abs/0706.1125 | |
| dc.identifier | http://arxiv.org/abs/0706.1125 | |
| dc.identifier | Phys.Rev.C75:065202,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.75.065202 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/210883 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Polarization effects in the reaction $e^++e^-\to ρ^+ +ρ^- $ and determination of the $ρ-$ meson form factors in the time--like region | |
| dc.type | text |