Speaker
Martin Rohrmoser
(SUBATECH)
Description
It is the central goal of our studies to describe parton fragmentation in the hot and dense medium of a quark gluon plasma. Under the assumption that the medium is not static and homogeneous, knowledge about the temporal evolution of the processes involved can be of essential importance.
Therefore, parton fragmentation has been studied with a Monte-Carlo algorithm that approximates the DGLAP-evolution of fragmentation functions via a set of parton cascades. The presented work consists mainly of the implementation of such an algorithm and the application of a simple approximation, which gives the time developpement of partonic cascades. A first model uses the leading-log approximation to parton splitting processes of gluons and massless quarks in the vacuum, while extensions to this model are also being investigated.
Furthermore, the temporal evolutions of quantities related to partonic cascades have been examined: To our understanding, especially variables (like, e.g.: parton multiplicities or virtualities) that give insight, when parton splittings take place are of high interest, as they allow to identify the parts of the fragmentation process that will be the ones most affected by medium interactions.
Author
Martin Rohrmoser
(SUBATECH)
