A geometric higher twist effect on nuclear target
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.
- Publication:
-
Nuclear Physics A
- Pub Date:
- May 2005
- DOI:
- 10.1016/j.nuclphysa.2005.02.085
- arXiv:
- arXiv:hep-ph/0408328
- Bibcode:
- 2005NuPhA.753..206Z
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 40 pages, 21 figures, replaced with revised version and missing figures, accepted for publication in Nucl. Phys. A