Nuclear higher-twist effects in eA DIS

Details Nuclear higher-twist effects in eA DIS Nuclear higher-twist effects in eA DIS

2009-03-22

arxiv.org/abs/0903.3737v1

AIP Conf.Proc.1105:398-402,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at Diffraction 2008: International Workshop on Diffraction in High Energy Physics, La Londe-les-Maures, France, 9-1

Scientific paper

10.1063/1.3122221

We discuss the relation between the treatments of the higher twist nuclear effects in eA DIS based on the pQCD collinear approximation and the light-cone path integral formalism. We show that in the collinear approximation the N=1 rescattering contribution to the gluon emission vanishes. It is demonstrated that the nonzero gluon spectrum obtained by Guo, Wang and Zhang is a consequence of unjustified neglect of some terms in the collinear expansion.

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