DETERMINATIONS OF P, AND CP, FOR HEAVY MESONS AND TESTS FOR THEIR VIOLATIONS WITHOUT POLARIZATION EXPERIMENTS

Résumé
Les résultats présentés sont d'un grand intérêt car ils peuvent être utilisés sur les "collider" modernes pour effectuer des tests de symétrie fondamentale par analyse de la désintégration séquentielle de X → V₁V₂. Les résultats permettent la détermination empirique de P et de CP pour les mésons lourds ainsi que la réalisation de tests pour leur violation sans expérience de polarisation.

Abstract
Powerful results are tabulated which can be used at modern colliders to make fundamental symmetry tests by analysis of sequential decays of X → V₁V₂. By generalization of the φφ parity test which has recently been used to determine the parity of the η_c, the P (or CP) quantum number can always be determined for X of any spin J which decays P (or respectively CP) invariantly into VV or V[MATH] where each vector meson decays into two spin-0 bosons, or is ω. P can also always be determined from a mode like K^*+ [MATH]^*o. A neutral spin-0 technipion and an elementary Higgs particle, for instance, can be distinguished by such CP invariant decay modes and by φ03C1;^o, φJ, JT, or if sufficiently massive by φZ^o or JZ^o where J/ψ and Z^o go into a lepton-antilepton pair. Generalization to the gZ^o and gg decay channels, g = gluon jet, which would be relevant to new resonance physics, for example, at the CERN collider is discussed. There are also very simple tests of possible violations of P, of the combination of C plus isospin, of both P and CP, and of both C and CP.