Speaker
Gösta Gustafson
Description
I will discuss the possible conflict between dipole cascades and DGLAP evolution suggested by Dokshitzer and Marchesini. In e+e- annihilation gluon emissions with high p_t have a very limited phase space. This affects the possible exponentiation in DGLAP evolution. In particular I will discuss the influence of these limitations in the angular ordered cascade à la HERWIG, and in the k_t-ordered cascade à la ARIADNE.
