The collisions of large nuclei at high energies could produce metastable vacua which are odd under parity P, charge conjugation C, and/or $\mathrm{CP}.\mathrm{}$ Using only the three-momenta of charged pions (or kaons), we show how to construct global observables which are odd under P, C, and $CP,$ and which can be measured on an event by event basis. Model dependent estimates of the P-odd observables are on the order of ${10}^{-3}.$

• Received 16 June 1999

DOI:https://doi.org/10.1103/PhysRevD.61.111901