Final-State Interaction as the Origin of the Cronin Effect

Details Final-State Interaction as the Origin of the Cronin Effect Final-State Interaction as the Origin of the Cronin Effect

2004-02-27

arxiv.org/abs/nucl-th/0403001v2

Phys.Rev.Lett.93:082302,2004

Physics

Nuclear Physics

Nuclear Theory

4 RevTeX pages including 3 figures and 1 table; Some notational changes and a corrected reference

Scientific paper

10.1103/PhysRevLett.93.082302

Instead of adhering to the usual explanation of the Cronin effect in terms of the broadening of the parton transverse momentum in the initial state, we show that the enhancement of hadron production at moderate $p_T$ in d+Au collisions is due to the recombination of soft and shower partons in the final state. Such a mechanism can readily explain the decrease of the Cronin effect with increasing rapidity. Furthermore, the effect should be larger for protons than for pions.

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