Title of article :
A geometric higher twist effect on nuclear target
Original Research Article
Author/Authors :
Wei Zhu، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2005
Abstract :
The higher twist effects in deep inelastic scattering on the nuclear target are studied using time ordered perturbation theory. We showed that the collinear rescattering of the outgoing quark on the extra nucleons via the contacting gluon-pair is dominant in nuclear size-dependent effects. The Qiu–Vitev resummation is proved by using the geometric properties of the higher twist amplitudes. The leading contributions of nuclear-enhanced effect to the DGLAP evolution equation are resumed in the same framework.
Keywords :
Higher twist effect , PQCD evolution equation
Journal title :
Nuclear physics A
Journal title :
Nuclear physics A