2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41629Direct CP violation in B -> J/Psi K is a clean test for new physics. However, the direct CP asymmetry will vanish if the new-physics amplitude has the same strong phase as the standard-model amplitude. We show that this type of new physics can still be detected via an angular analysis of the sister decay mode B -> J/Psi K^*. Time-dependent measurements and tagging are not necessary. Should new physics be found, this angular analysis can be used to obtain information about the size of the new-physics parameters.6 pages, LaTeX, no figures. Talk given by Rahul Sinha at Flavor Physics and CP Violation (FPCP), Philadelphia, PA, USA, May 2002High Energy Physics - Phenomenologytext