Recent measurement of time dependent asymmetries in B→K are indicative of a new source of CP violation. We examine squark mixing in supersymmetry as this new source, and using a QCD improved factorization method to describe B→K decay we find the allowed range of parameter space for and , the magnitude and phase of the down type LR (RL) squark mixing parameter ␦ LR(RL) bs . We then study B→K* and calculate the expected CP asymmetries in the same range of parameter space. We find that this asymmetry is in the range 15%-20% for an acceptable value of the B→K* branching ratio. We also predict the helicity dependent CP asymmetries in the same parameter space.

Using the first-order approximating solutions to the Einstein-Maxwell-Klein-Gordon system of equations for a complex scalar field minimally coupled to a spherically symmetric spacetime, we study the feedback of gravity and electric field on the charged scalar source. Within a perturbative approach, we compute, in the radiation zone, the transition amplitudes and the coherent source-field regeneration rate.

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We consider a non-rotating strongly magnetized object, whose magnetic induction is of the form 𝐵𝑥 = 𝐵0(𝑡) sin 𝜅𝑧.In the electromagnetic field generated by only one component of the four-vector potential, we solve the Klein-Gordon equation and discuss the sudden growth of the scalar wave functions for wavenumbers inside computable ranges. In the case of unexcited transversal kinetic degrees, we write down the recurrent differential system for the amplitude functions and compute the respective conserved currents.

We consider a special magnetic field, as for example the one in the crust of a magnetar, and solve the Klein–Gordon equation describing scalars evolving in such a configuration. For the wave number inside some computable ranges, the amplitude function of the charged boson is very sensitive to the magnetic field induction, turning from oscillatory to exponentially growing modes along Oz. One can recover the periodic behavior characterized by stationary amplitudes, by adding a self-interaction contribution to the spontaneously broken Lagrangian.