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Absorption and production cross sections of K and K*

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Autor(es):
Martinez Torres, A. ; Khemchandani, K. P. ; Abreu, L. M. ; Navarra, F. S. ; Nielsen, M.
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: PHYSICAL REVIEW D; v. 97, n. 5, p. 18-pg., 2018-03-05.
Resumo

We have computed the isospin and spin averaged cross sections of the processes pi K* -> rho K and rho K* -> pi K, which are crucial in the determination of the abundances of K* and K in heavy ion collisions. Improving previous calculations, we have considered several mechanisms which were missing, such as the exchange of axial and vector resonances (K-1(1270), K-2*(1430), h(1)(1170), etc.) and also other processes such as pi K* -> omega K; phi K and omega K*, phi K* -> pi K. We find that some of these mechanisms give important contributions to the cross section. (AU)

Processo FAPESP: 12/50984-4 - Física de hádrons
Beneficiário:Fernando Silveira Navarra
Modalidade de apoio: Auxílio à Pesquisa - Temático