Back-to-back correlations for finite expanding fireballs

• Autor(a) principal: Padula, Sandra S. [UNESP]
• Data de Publicação: 2006
• Outros Autores: Krein, G. [UNESP], Csörgo, T., Hama, Y., Panda, P. K.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1103/PhysRevC.73.044906; http://hdl.handle.net/11449/224750

Back-to-back correlations of particle-antiparticle pairs are related to the in-medium mass-modification and squeezing of the quanta involved. They are predicted to appear when hot and dense hadronic matter is formed in high energy nucleus-nucleus collisions. The survival and magnitude of the back-to-back correlations (BBC) of boson-antiboson pairs generated by in-medium mass modifications are studied here in the case of a thermalized, finite-sized, spherically symmetric expanding medium. We show that the BBC signal indeed survives the finite-time emission, as well as the expansion and flow effects, with sufficient intensity to be observed at BNL Relativistic Heavy Ion Collider (RHIC). © 2006 The American Physical Society.