The drift chamber system for the FINUDA experiment

FINUDA [1,2] is one of the two experiments approved for running in the coming years at DAΦNE, the Frascati φ-factory. Large production of Λ-hypernuclei, from absorption of K− at rest in nuclear targets, will allow an unprecedented step forward in hypernuclear physics (spectroscopy, mesonic and non-mesonic decay, new hypernuclei with neutron excess). reseen momentum resolution for pions of 250–270 MeV/c is nearly 0.3% FWHM over a solid angle larger than 2π, and the foreseen production of hypernuclear states is 75 per hour.