Nuclear medium effects in J/Ψ production at HERA

Ayala Filho, Alvaro Leonardi; Mariotto, Cristiano Brenner; Gonçalves, Victor Paulo Barros


In this paper we estimate the influence of the shadowing effect and initial state parton energy loss in the quarkonium production at HERA-B. We analyze the xF behavior of the effective exponent α(xF) and present a comparison with the preliminary HERA-B data for J/Ψ production. Moreover, we estimate the magnitude of these effects in the J/Ψ production at RHIC.

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  • IMEF - Artigos publicados em periódicos