6533b831fe1ef96bd1298492
RESEARCH PRODUCT
Spontaneous CP violation and the B0 system
Martti RaidalGabriela BarenboimJose Bernabeusubject
PhysicsNuclear and High Energy PhysicsParticle physicsIndependent parameterHiggs bosonFísicaCP violationMatrix elementUpper and lower boundsOrder of magnitudeStandard Modeldescription
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 $Re(\overline{\epsilon}_B),$ which measures the amount of $\Delta B=2$ 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-02-01 | Nuclear Physics B |