Bose-Einstein correlations for mixed neutral mesons.

Abstract

Correlations are shown to arise in nonidentical mixed-particle pairs like ${\mathit{k}}^{0}$k\ifmmode\bar\else\textasciimacron\fi{} $^{0}$ when observed in decay modes like ${\mathit{k}}_{\mathit{s}}$${\mathit{k}}_{\mathit{s}}$ in multiparticle final states containing many partial waves. No enhancement is found in any single partial wave. All partial wave analyses of s-wave threshold resonances ${\mathit{a}}_{0}$ and ${\mathit{f}}_{0}$ should give the same results for all decay modes. The effect may be useful in CP-violation experiments where ${\mathit{B}}^{0}$-B\ifmmode\bar\else\textasciimacron\fi{} $^{0}$ pairs are inclusively produced and their Einstein-Podolsky-Rosen--correlated decays into \ensuremath{\psi}${\mathit{K}}_{\mathit{S}}$ and leptonic modes are observed. The CP-violating lepton asymmetry is enhanced by a factor of 2 in the kinematic region where Bose enhancement occurs.