When considering the transverse momentum distribution (q_T) of the Higgs
boson production it is necessary to separate the small q_T region (q_T << M_H)
from the medium and large (q_T > M_H) one, the former being treated by means of
resummation techniques of logaritmhically-enhanced contributions and the latter
by fixed-order perturbation theory. Then these two approaches have to be
consistently matched to avoid double-counting in the intermediate q_T region.
Here soft gluon resummation is implemented up to NNLL order and the matching to
the corresponding NLO perturbative result is performed. Numerical results are
shown for the LHC. The main features of the differential distribution turn out
to be quite stable with respect to perturbative uncertainties.Comment: 5 pages, 2 figures,. Talk given in italian at "Incontri sulla Fisica
delle Alte Energie", Lecce, Italy, 23-26 April 200
