Author/Authors :
N Armesto، نويسنده , , M.A. Braun، نويسنده , , E.G Ferreiro، نويسنده , , C Pajares، نويسنده , , Yu M. Shabelski ، نويسنده ,
Abstract :
It is shown that the fusion of strings is a source of particle production in nucleus-nucleus collisions outside the kinematical limits of nucleon-nucleon collisions. Together with another effect of string fusion, reduction of multiplicities, this sheds some light on two of the main problems of ultrahigh energy cosmic rays, the chemical composition and the energy of the most energetic detected cosmic rays.
