| Texto completo | |
| Autor(es): |
de Melo, J. P. B. C.
;
Ji, Chueng-Ryong
;
Frederico, T.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physics Letters B; v. 763, p. 87-93, DEC 10 2016. |
| Citações Web of Science: | 6 |
| Resumo | |
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) | |
| Processo FAPESP: | 15/16295-5 - Fenomenologia da física de partículas e do núcleo no formalismo da frente de luz |
| Beneficiário: | Joao Pacheco Bicudo Cabral de Mello |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 13/50749-8 - Light-cone phenomenology of generalized parton distribution functions |
| Beneficiário: | Joao Pacheco Bicudo Cabral de Mello |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |