U-spin analysis of CP violation in decays into three charged light pseudoscalar mesons.

Abstract: We carry out a U-spin symmetry analysis for CP violation in decays into three light , , and mesons. We clarify some subtle points in constructing decay amplitudes with formed by the two negatively charged light mesons in the final states. U-spin conserving momentum independent and momentum dependent decay amplitudes, and U-spin violating decay amplitudes due to quark mass difference are constructed. [Copyright &y& Elsevier]