6533b82cfe1ef96bd128f3b3

RESEARCH PRODUCT

CPAsymmetries inB0Decays in the Left-Right Model

M. RaidalJose BernabeuGabriela Barenboim

subject

PhysicsParticle physicsAmplitudePhysics beyond the Standard ModelSpontaneous symmetry breakingGeneral Physics and AstronomyCP violationHigh Energy Physics::ExperimentAtomic physicsMixing (physics)Standard ModelB-factoryBar (unit)

description

We study time dependent CP asymmetries in B^0_{d,s} decays in the left-right model with spontaneous breakdown of CP. Due to the new contributions to B^0-\bar B^0 mixing the CP asymmetries can be substantially modified. Moreover, there can be significant new contributions to the $B$-meson decay amplitudes from the magnetic penguins. Most promising for detection of the new physics in the planned $B$ factories is that the CP asymmetries in the decays B--> J/\psi K_S and B--> \phi K_S which are supposed to be equal in the standard model can differ significantly in this class of models independently of the results in the measurements of B--> X_s \gamma.

https://doi.org/10.1103/physrevlett.80.4625