2012/08/28 by Jennifer Girrbach, Girrbach, Jennifer
Environmental Science · Physics and Astronomy · #Atmospheric and Environmental Gas Dynamics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Methane Hydrates and Related Phenomena #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1208.5630
12 pages, 6 figures; a shorter version will appear in the proceedings of FLASY12 Workshop on Flavor Symmetries Dortmund, 30 June 2012 - 4 July 2012
arxiv created 2012/08/28 · openalex publication_date 2012/08/28 · arxiv updated 2012/08/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Models with an approximate U(2)3 flavour symmetry represent simple non-MFV extensions of the SM. We compare correlations of Delta F = 2 observables in CMFV and in a minimal version of U(2)3 models, MU(2)3, where only the minimal set of spurions for breaking the symmetry is used and where only SM operators are relevant. Due to the different treatment of the third generation MU(2)3 models avoid the Delta Ms,d-|epsilonK| correlation of CMFV which precludes to solve the Spsi KS- |epsilonK| tension present in the flavour data. While the flavour structure in K meson system is the same for CMFV and MU(2)3 models, CP violation in Bd,s system can deviate in MU(2)3 models from CMFV. We point out a triple correlation between Spsi phi, Spsi KS and |Vub| that can provide a distinction between different MU(2)3 models. GUTs open the possibility to transfer the neutrino mixing matrix UPMNS to the quark sector which leads to correlations between leptonic and hadronic observables. This is accomplished in a controlled way in an SO(10) SUSY GUT model proposed by Chang, Masiero and Murayama (CMM model) whose flavour structure differ significantly from the constrained MSSM. We present a summary of a global analysis of several flavour processes containing Bs-overlineBs mixing, b -> s gamma and tau -> mu gamma. Furthermore we comment on the implications on the model due to the latest data of Spsi phi, theta13 and the Higgs mass.