ANGULAR AND ENERGY CORRELATIONS IN HIGGS DECAY

We discuss how correlations among momenta of the decay products may yi eld information about the CP-parity. of the Higgs particle. These are correlations of decay planes defined by the momenta of pairs of partic les as well as correlations between energy differences. Our study incl udes finite-width effects. In the narrow-width approximation the angul ar correlations coincide with previously reported results. The correla tions between energy differences tum out to be a much better probe for CP determination than the previously suggested angular correlations, especially for massive Higgs bosons.