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arXiv · hep-ph/9702337

Spontaneous CP violation and the B system

G. Barenboim·J. Bernabeu·M. Raidal
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Abstract

We investigate effects of spontaneous breakdown of CP in $B^0_{d,s}-\overline{B^0}_{d,s}$ systems in left-right symmetric models. Assuming that the left-right contribution to the $B^0-\overline{B^0}$ matrix element $M_{12}$ can be at most equal to the standard model one we obtain a new lower bound, $M_H\gsim 12$ TeV, on the flavour changing Higgs boson mass. Most importantly, the convention independent parameter $Re(\overlineε_B),$ which measures the amount of $ΔB=2$ CP violation, can be enhanced by a factor of four or more for $B^0_d$ and almost by two orders of magnitude for $B^0_s$ systems when compared with the Standard Model predictions. Therefore, interesting possibilities to observe indirect CP violation in the $B$ system are open in the planned facilities.

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G. Barenboim, J. Bernabeu, M. Raidal. 1997-02-14. Spontaneous CP violation and the B system. https://doi.org/10.1016/s0550-3213(97)00668-8

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