Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-02-18
SpringerProc.Phys.98:315-331,2005
Physics
High Energy Physics
High Energy Physics - Phenomenology
Main latex-file, 4 figures, 22 pages
Scientific paper
We classify the extensions of the Standard Model (SM) according to the structure of local operators in the weak effective Hamiltonian and the presence or absence of new flavour and CP-violating interactions beyond those represented by the CKM matrix. In particular we review characteristic properties of models with minimal flavour violation (MFV), models with significant contributions from Higgs penguins and models with enhanced Z^0 penguins carrying a large new CP-violating phase. Within the latter models, the anomalous behaviour of certain B\to\pi K observables implies large departures from the SM predictions for rare and CP-violating K and B decays. Most spectacular is the enhancement of Br(K_L->pi^0 nu nubar) by one order of magnitude and a strong violation of the MFV relation (\sin2\beta)_{\pi\nu\bar\nu}=(\sin2\beta)_{\psi K_S}. On the other hand our prediction for (\sin2\beta)_{\phi K_S}\approx 0.9 differs from the Belle result by the sign but is consistent with the BaBar value. We give a personal shopping list for the coming years.
No associations
LandOfFree
Waiting for Clear Signals of New Physics in B and K Decays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Waiting for Clear Signals of New Physics in B and K Decays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waiting for Clear Signals of New Physics in B and K Decays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-180927