Structure Functions and Particle Production in the Cumulative Region: two different exponentials

Details Structure Functions and Particle Production in the Cumulative Region: two different exponentials Structure Functions and Particle Production in the Cumulative Region: two different exponentials

1996-01-23

arxiv.org/abs/hep-ph/9601315v1

Phys.Atom.Nucl. 60 (1997) 432-438; Yad.Fiz. 60N3 (1997) 506-512

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX, 5 figures (Fig.4 and 5 in .ps format)

Scientific paper

In the framework of the recently proposed QCD based parton model for the cumulative phenomena in the interactions with nuclei two mechanisms for particle production, direct and spectator ones, are analysed. It is shown that due to final state interactions the leading terms of the direct mechanism contribution are cancelled and the spectator mechanism is the dominant one. It leads to a smaller slope of the cumulative particle production rates compared to the slope of the nuclear structure function in the cumulative region $x>1$, in agreement with the recent experimental data.

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