The in-medium scale evolution in jet modification
Abstract
The in-medium modification of the scale dependence of the fragmentation function in dense matter, brought about by higher twist corrections to the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations, is derived. A phenomenologically motivated resummation is outlined which incorporates the next-to-leading twist single gluon emission kernel along with the vacuum emission kernel and provides an in-medium virtuality evolution of the final fragmentation function of a hard jet propagating through dense matter. The concept of a fragmentation function is generalized to include a dependence on distance traveled in the medium. Following this, numerical implementations are carried out and compared to experimental results on the single inclusive suppression observed in Deep-Inelastic scattering (DIS) off a large nucleus.
Cite
@article{arxiv.0901.4516,
title = {The in-medium scale evolution in jet modification},
author = {A. Majumder},
journal= {arXiv preprint arXiv:0901.4516},
year = {2009}
}
Comments
4 pages, 2 figures, Revtex, references added, typos corrected, improved calculation