| Texto completo | |
| Autor(es): |
Padula, S. S.
;
Hama, Y.
;
Krein, G.
;
Panda, P. K.
;
Csorgo, T.
;
Simak, V
;
Sumbera, M
;
Todorova, S
;
Tomasik, B
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MAGNETIC FIELDS IN THE UNIVERSE: FROM LABORATORY AND STARS TO PRIMORDIAL STRUCTURES; v. 828, p. 2-pg., 2006-01-01. |
| Resumo | |
Back-to-Back Correlations (BBC) of particle-antiparticle pairs are predicted to appear if hot and dense hadronic matter is formed in high energy nucleus-nucleus collisions. The BBC are related to in-medium mass-modification and squeezing of the quanta involved. Although the suppression of finite emission times were already known, the effects of finite system sizes and of collective phenomena had not been studied yet. Thus, for testing the survival and magnitude of the effect in more realistic situations, we study the BBC when mass-modification occurs in a finite sized, thermalized medium, considering a non-relativistically expanding fireball with finite emission time, and evaluating the width of the back-to-back correlation function. We show that the BBC signal indeed survives the expansion and flow effects, with sufficient magnitude to be observed at RHIC. (AU) | |
| Processo FAPESP: | 04/10619-9 - Estudo de interações hadrônicas a altas energias |
| Beneficiário: | Yogiro Hama |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 05/52190-1 - Survival of back-to-back correlations for finite expanding fireballs. |
| Beneficiário: | Sandra dos Santos Padula |
| Modalidade de apoio: | Auxílio à Pesquisa - Reunião - Exterior |