Otro
Hadronic physics in peripheral heavy Ion collisions
Registro en:
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 32, n. 4, p. 849-860, 2002.
0103-9733
10.1590/S0103-97332002000500006
S0103-97332002000500006
S0103-97332002000500006.pdf
Autor
Natale, Adriano Antonio
Resumen
We discuss the production of hadronic resonances in very peripheral heavy ion collisions, where the ions collide with impact parameter larger than twice the nuclear radius and remain intact after the collision. We compare the resonance production through two-photon and double Pomeron exchange, showing that when we impose the condition for a peripheral interaction the gg process dominates over the Pomeron interaction, due to the short range propagation of this last one. We also discuss the observation of light resonances through the subprocess gg ->R ®gg , which is a clean signal for glueball candidates as well as one way to check the existence of a possible scalar sigma meson. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)