Measurements of hadron production cross sections and secondary particle yields in the energy range 2-15 GeV using neutrino beam targets

First measurements of hadron production cross sections in the forward region (up to about 300 mrad), using a replica of the K2K target and a proton beam of 12.9 GeV/c, are reported. This is an appealing physics case, given the immediate interest for these experiments and for the neutrino community.