| Full text | |
| Author(s): |
de Melo, J. P. B. C.
;
Ji, Chueng-Ryong
;
Frederico, T.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Physics Letters B; v. 763, p. 87-93, DEC 10 2016. |
| Web of Science Citations: | 6 |
| Abstract | |
The annihilation/production process e(+) + e(-) -> rho(+) + rho(-) is studied with respect to the universal perturbative QCD (pQCD) predictions. Sub-leading contributions are considered together with the universal leading pQCD amplitudes such that the matrix elements of the rho-meson electromagnetic current satisfy the constraint from the light-front angular condition. The data from the BaBar collaboration for the time-like rho-meson form factors at root s = 10.58 GeV puts a stringent test to the onset of asymptotic pQCD behavior. The e(+) + e(-) -> rho(+) + rho(-) cross-section for s between 60 GeV2 and 160 GeV2 is predicted where the sub-leading contributions are still considerable. (C) 2016 The Author(s). Published by Elsevier B.V. (AU) | |
| FAPESP's process: | 15/16295-5 - Phenomenology of the particle physics and nucleus in the light-front formalism |
| Grantee: | Joao Pacheco Bicudo Cabral de Mello |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/50749-8 - Light-cone phenomenology of generalized parton distribution functions |
| Grantee: | Joao Pacheco Bicudo Cabral de Mello |
| Support Opportunities: | Regular Research Grants |