2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94745We discuss consequences of finite plasma formation time at RHIC. Nuclear modification factor, azimuthal assymetry, di-jet correlations can quantitatively be described by particle production in the early stage of the nuclear collision. A possible impact on interpretation of the non-photonic electrons and J/psi data is also considered.15 pages, 8 figuresHigh Energy Physics - Phenomenologytext