COMPASS, a new state-of-the-art spectrometer to be installed at the CERN Su
perprotonsynchrotron for experiments with muon and hadron beams, will be ex
posed to hadron beams with intensities up to 10(8)/sec and energies up to 2
The physics goals are to study the rare production of charmed hadrons, incl
uding doubly charmed baryons, in inelastic interactions, with particular in
terest in their semileptonic decays; to search for glueballs and hybrids in
central and diffractive production. Predictions of chiral perturbation the
ory will be tested in Primakoff reactions.
The spectrometer shall be equipped with excellent particle identification a
nd tracking, with calorimetry, dedicated triggers and fast read-out. A sign
ificant improvement of light hadron spectroscopy - compared to previous mea
surements -can be achieved already in the initial phase of the experiment.