Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-02-19
Nucl.Phys.A827:439c-444c,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 4 figures. Talk at PANIC08 (International Conference on Particles and Nuclei), Eilat, Israel, 9-14 November 2008. Add
Scientific paper
10.1016/j.nuclphysa.2009.05.095
We present the update of the Unitarity Triangle (UT) analysis within the Standard Model (SM) and beyond. Within the SM, combining the direct measurements on sides and angles, the UT turns out to be overconstraint in a consistent way, showing that the CKM matrix is the dominant source of flavour mixing and CP-violation and that New Physics (NP) effects can appear at most as small corrections to the CKM picture. Generalizing the UT analysis to investigate NP effects, constraints on b -> s transitions are also included and both CKM and NP parameters are fitted simultaneously. While no evidence of NP effects is found in K-\bar K and B_d-\bar B_d mixing, in the B_s-\bar B_s mixing an hint of NP is found at the 2.9 \sigma level. The UT analysis beyond the SM also allows us to derive bounds on the coefficients of the most general \Delta F=2 effective Hamiltonian, that can be translated into bounds on the NP scale.
No associations
LandOfFree
Update of the Unitarity Triangle Analysis 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 Update of the Unitarity Triangle Analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Update of the Unitarity Triangle Analysis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-260777