Extensions of the extrema bounds for the pomeron intercept to meson-proton, gamma-proton and gamma-gamma scattering

Autor(es)

E. G. S. Luna ; M. J. Menon ; J. Montanha

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Physics; v. 34, n. 1a, p. 268-271, Mar. 2004.

Resumo

Making use of the extrema bounds for the soft pomeron intercept, recently determined by fits to pp and <img id="_x0000_i1026" src="../../img/revistas/bjp/v34n1a/a25img08.gif" align=absbottom>data (from both accelerator and cosmic-ray experiments), we investigate the total cross sections for pion-proton, kaon-proton, gamma-proton and gamma-gamma scattering. We show that by means of global fits, the extrema bounds are in agreement with the bulk of experimental data presently available, and that extrapolations to higher energies indicate different behaviors for the rise of the total cross sections. We also discuss factorization and quark counting, showing that both bounds are in agreement with these properties. (AU)

• Processo FAPESP: 00/00991-7 - Estudo do espalhamento difrativo de hádrons através de um modelo eiconal baseado na cromodinâmica quântica
• Beneficiário: Emerson Gustavo de Souza Luna
• Linha de fomento: Bolsas no Brasil - Doutorado
• Processo FAPESP: 00/04422-7 - Estudo de interações hadrônicas e altas energias
• Beneficiário: Yogiro Hama
• Linha de fomento: Auxílio à Pesquisa - Temático