TY - JOUR

T1 - Structure functions and particle production in the cumulative region

T2 - Two different exponentials

AU - Braun, M.

AU - Vechernin, V.

PY - 1997/3/1

Y1 - 1997/3/1

N2 - Two mechanisms for particle production, direct and spectator ones, are analyzed on the basis of the recently proposed QCD-based parton model for cumulative phenomena in interactions involving nuclei. It is shown that, owing to final-state interactions, the leading terms of the direct-mechanism contribution are canceled, so that the spectator mechanism is the dominant one. This leads to a smaller slope of the rates of cumulative particle production in relation to the slope of the nuclear structure function in the cumulative region x > 1. This result agrees with recent experimental data.

AB - Two mechanisms for particle production, direct and spectator ones, are analyzed on the basis of the recently proposed QCD-based parton model for cumulative phenomena in interactions involving nuclei. It is shown that, owing to final-state interactions, the leading terms of the direct-mechanism contribution are canceled, so that the spectator mechanism is the dominant one. This leads to a smaller slope of the rates of cumulative particle production in relation to the slope of the nuclear structure function in the cumulative region x > 1. This result agrees with recent experimental data.

UR - http://www.scopus.com/inward/record.url?scp=0031519890&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031519890

VL - 60

SP - 432

EP - 438

JO - Physics of Atomic Nuclei

JF - Physics of Atomic Nuclei

SN - 1063-7788

IS - 3

ER -