4 research outputs found
Hadronization corrections to helicity components of the fragmentation function
In the hadronic decays of Z, gluon emission leads to the appearance of the
longitudinal component of the fragmentation function, F_L. Measurement of F_L
and the transverse component, F_T, could thus provide an insight into the gluon
fragmentation function. However, hadronization corrections at low x can be
significant. Here we present a method of accounting for such corrections, using
the JETSET event generator as illustration.Comment: 11 pages, 5 figure
Structure of Vacuum Condensates
It is essential to know the space-time structure of the nonlocal vacuum
condensates for application to medium energy processes. Using the
Dyson-Schwinger formalism in the rainbow approximation for the quark
propagator, we study the nonlocal quark condensate and model forms for the
nonperturbative gluon propagator constrained by fits to local condensates and
deep inelastic scattering with nucleon targets.Comment: 8pages (REVTEX), 1 PostScript figur