Possible evidence for the breakdown of the CKM-paradigm of CP-violation

الأصل · EN

Using primarily experimental inputs for S(B -> psi Ks), Delta MBs, Delta MBd, BR(B -> tau nu) and epsilonₖ along with necessary inputs from the lattice, we find that the measured value of sin(2 beta) is smaller than expectations of the Standard Model by as much as 3.3 sigma, and also that the measured value of the BR(B -> tau nu) seems to be less than the predicted value by about 2.8 sigma. However, through a critical study we show that most likely the dominant source of these deviations is in Bd(s) mixings and in sin(2 beta) and less so in B -> tau nu, and also that the bulk of the problem persists even if input from epsilonₖ is not used. The fact that kaon mixing and epsilonₖ are not the dominant source of the deviation from the Standard Model has the very important consequence that model independent considerations imply that the scale of the relevant new CP-violating physics is below O(2 TeV), thus suggesting that direct signals of the new particle(s) may well be accessible in collider experiments at the LHC and perhaps even at the Tevatron.