Searching for New Physics through correlations of Flavour Observables
| Autor: | Girrbach, Jennifer |
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| Rok vydání: | 2013 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | The coming flavour precision era will allow to uncover various patterns of flavour violation in different New Physics scenarios. We discuss different classes of them. A simple extension of the Standard Model that generally introduces new sources of flavour and CP violation as well as right-handed currents is the addition of a U(1) gauge symmetry to the SM gauge group. In such Z' models correlations between various flavour observables emerge that could test and distinguish different Z' scenarios. A concrete model with flavour violating Z' couplings is the 331 model based on the gauge group SU(3)_C x SU(3)_L x U(1)_X. We also study tree-level FCNCs mediated by heavy neutral scalars and/or pseudo-scalars H^0(A^0). Furthermore the implications of an additional approximate global U(2)^3 flavour symmetry is shortly discussed. Finally a model with vectorlike fermions and flavour violating Z couplings is presented. We identify a number of correlations between various observables that differ from those known from constrained minimal flavour violating (CMFV) models and that could test and distinguish these different scenarios. Comment: 9 pages, 8 figures; to appear in the proceedings of Beauty 2013, Bolgna, Italy, April 8-12, 2013 |
| Databáze: | arXiv |
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