Production of spin-3 mesons in diffractive DIS
| dc.creator | Caporale, F. | |
| dc.creator | Ivanov, I. P. | |
| dc.date | 2005-04-16 | |
| dc.date | 2005-06-01 | |
| dc.date.accessioned | 2026-07-07T12:25:03Z | |
| dc.date.available | 2026-07-07T12:25:03Z | |
| dc.description | We calculate the amplitudes of J^{PC}=3^{--} meson production in diffractive DIS within the k_t-factorization approach, with a particular attention paid to the rho_3(1690) meson. We find that at all Q^2 the rho_3(1690) production cross section is 2-5 times smaller than the rho(1700) production cross section, which is assumed to be a pure D-wave state. Studying sigma_L and sigma_T separately, we observe domination of rho_3 in sigma_L and domination of rho(1700) in sigma_T and offer an explanation of this behavior in simple terms. We also find very strong contributions -- sometimes even domination -- of the s-channel helicity violating amplitudes. The typical color dipole sizes probed in rho_3 production are shown to be larger than those in the ground state rho production, and the energy dependence of rho_3 cross section turns out to be much flatter than the rho production cross section. All the conclusions about the relative behavior of rho_3(1690) and rho(1700) mesons are numerically stable against variations of input parameters. | |
| dc.description | 18 pages, 5 figures; v2: correction in Eq.(13), numerical results slightly shifted; conclusions unchanged | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0504139 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0504139 | |
| dc.identifier | Eur.Phys.J.C44:505-514,2005 | |
| dc.identifier | doi:10.1140/epjc/s2005-02379-5 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214507 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Production of spin-3 mesons in diffractive DIS | |
| dc.type | text |