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- Monika Blanke, Andrzej J Buras, Diego Guadagnoli, Cecilia Tarantino
- 2003

We emphasize that the recent measurements of the B 0 s − ¯ B 0 s mass difference ∆M s by the CDF and DØ collaborations offer an important model independent test of minimal flavour violation (MFV). The improved measurements of the angle γ in the unitarity triangle and of |V ub | from tree level decays, combined with future accurate measurements of ∆M s , and… (More)

- Wolfgang Altmannshofer, Andrzej J Buras, Diego Guadagnoli
- 2007

We apply the effective field theory definition of Minimal Flavour Violation (MFV) to the MSSM. We explicitly show how, by this definition, the new sources of flavour and CP violation present in the MSSM become functions of the SM Yukawa couplings, and cannot be simply set to zero, as is common wisdom in phenomenological MSSM studies that assume MFV. We… (More)

- Michaela E Albrecht, Wolfgang Altmannshofer, Andrzej J Buras, Diego Guadagnoli, David M Straub
- 2008

We perform a detailed analysis of the SO(10) SUSY GUT model with D 3 family symmetry of Dermíšek and Raby (DR). The model is specified in terms of 24 parameters and predicts, as a function of them, the whole MSSM set of parameters at low energy scales. Concerning the SM subset of such parameters, the model is able to give a satisfactory description of the… (More)

- Monika Blanke, Andrzej J Buras, Diego Guadagnoli, Cecilia Tarantino
- 2006

We emphasize that the recent measurements of the B 0 s − ¯ B 0 s mass difference ∆M s by the CDF and DØ collaborations offer an important model independent test of minimal flavour violation (MFV). The improved measurements of the angle γ in the unitarity triangle and of |V ub | from tree level decays, combined with future accurate measurements of ∆M s , and… (More)

- Wolfgang Altmannshofer, Andrzej J Buras, Diego Guadagnoli, Michael Wick
- 2008

Under the assumption of Minimal Flavour Violation (MFV), the Unitarity Triangle (UT) can be determined by using only angle measurements and tree level observ-ables. In this respect, the most accurate quantities today available are sin 2β ψK S , |V cb | and |V ub |. Among the latter, |V ub | is at present the quantity suffering from largest systematic… (More)

The LHCb Collaboration's measurement of R_{K}=B(B^{+}→K^{+}μ^{+}μ^{-})/B(B^{+}→K^{+}e^{+}e^{-}) lies 2.6σ below the Standard Model prediction. Several groups suggest this deficit to result from new lepton nonuniversal interactions of muons. But nonuniversal leptonic interactions imply lepton flavor violation in B decays at rates much larger than are… (More)

- Diego Guadagnoli, Stuart Raby, David M Straub
- 2009

We explore general SUSY GUT models with exact third-generation Yukawa unification, but where the requirement of universal soft terms at the GUT scale is relaxed. We consider the scenario in which the breaking of universality inherits from the Yukawa couplings, i.e. is of minimal flavor violating (MFV) type. In particular, the MFV principle allows for a… (More)

- Diego Guadagnoli
- 2009

I provide a short overview of the hypothesis of Yukawa unification within SUSY GUTs, emphasizing its motivations and its predictivity-enhancing role. I then discuss the status of the tests of this hypothesis, and the major role played by observables in the flavor sector. Concerning the patterns of soft SUSY-breaking terms assumed at the GUT scale, I focus… (More)

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