Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-10-24
Phys.Rev.D73:054020,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
Scientific paper
10.1103/PhysRevD.73.054020
We define a general scheme for the evolution of fragmentation functions which resums both soft gluon logarithms and mass singularities in a consistent manner and to any order, and requires no additional theoretical assumptions. Using the Double Logarithmic Approximation and the known perturbative results for the splitting functions, we present our scheme with the complete contribution from the double logarithms, being the largest soft gluon logarithms. We show that the resulting approximation is more complete than the Modified Leading Logarithm Approximation even with the fixed order contribution calculated to leading order only, and find, after using it to fit quark and gluon fragmentation functions to experimental data, that this approximation in our scheme gives a good description of the data from the largest x_p values to the peak region in xi=ln (1/x_p), in contrast to other approximations. In addition, we develop a treatment of hadron mass effects which gives additional improvements at large xi.
Albino Simon
Kniehl Bernd A.
Kramer Georgiana
Ochs William
No associations
LandOfFree
Resummation of Soft Gluon Logarithms in the DGLAP Evolution of Fragmentation Functions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Resummation of Soft Gluon Logarithms in the DGLAP Evolution of Fragmentation Functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resummation of Soft Gluon Logarithms in the DGLAP Evolution of Fragmentation Functions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-522787