Limits on W_{R} from Meson Decays.

In this Letter we show that pseudoscalar meson leptonic decay data can be used to set stringent limits on the mass m_{W_{R}} of a right-handed vector boson, such as the one that appears in left-right symmetric models. We have shown that for a heavy neutrino with a mass m_{N} in the range 50 View Article and Find Full Text PDF

Spontaneous breaking of flavor symmetry avoids the strong CP problem.

A promising approach to the standard model flavor puzzle is based on the idea that the SU(3)3 quark-flavor symmetry is spontaneously broken by vacuum expectation values of "Yukawa fields" which minimize the symmetry invariant scalar potential at configurations corresponding to the observed quark masses and mixing angles. We show that this approach provides a simple and elegant explanation for CP conservation in strong interactions.