New Physics from Flavour

Abstract

The UT{\it{fit}} Collaboration has produced several analyses in the context of flavour physics both within and beyond the Standard Model. In this paper we present updated results for the Standard Model analysis of the Unitarity Triangle using the latest experimental and lattice QCD inputs, as well as an update of the Unitarity Triangle analysis in a scenario beyond the Standard Model. Combining all available experimental and theoretical information on $\Delta F=2$ processes and using a model-independent parameterization, we extract the allowed New Physics contributions in the $K^0$, $D^0$, $B_d$, and $B_s$ sectors. We observe a departure of the $B_s$ mixing phase from the Standard Model expectation with a significance of about $3\sigma$.

Heavy Quarks and Leptons, Melbourne, 2008

References in corpus (10)

• Model-independent constraints on Delta F=2 operators and the scale of New Physics
• The 2004 UTfit Collaboration Report on the Status of the Unitarity Triangle in the Standard Model
• The Unitarity Triangle Fit in the Standard Model and Hadronic Parameters from Lattice QCD: A Reappraisal after the Measurements of Delta m_s and BR(B to tau nu)
• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• First Flavor-Tagged Determination of Bounds on Mixing-Induced CP Violation in Bs -> J/psi phi Decays
• Correlations among new CP violating effects in Delta F = 2 observables
• Possible Indications of New Physics in Bd-mixing and in sin(2 beta) Determinations
• First Evidence of New Physics in b <--> s Transitions
• Constraints on new physics from the quark mixing unitarity triangle
• The UTfit Collaboration Report on the Status of the Unitarity Triangle beyond the Standard Model I. Model-independent Analysis and Minimal Flavour Violation

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• $B\to K^{\ast }{l}^{+}{l}^{-}$, $K{l}^{+}{l}^{-}$ decays in a family non-universal $Z^{\prime }$ model
• Precision measurement of the Lambda_b baryon lifetime
• Probing the R-parity violating supersymmetric effects in the exclusive b\to c\ell^-\barν_\ell decays
• Variations on the Supersymmetric Q6 Model of Flavor
• Probe a family non-universal Z' boson effects in B(s)-> phi mu(+) mu(-)decay
• Z-mediated charge and CP asymmetries and FCNCs in $B_{d,s}$ processes
• The Effects of a Family Non-universal Z' Boson in the \bar{B}_s->πK, πK*, ρK Decays and B_d-\bar{B_d} mixing
• The Higgs Boson is found: What is next?
• Reevaluating R-parity Violating Supersymmetry Effects in B_s^0-\bar{B}_s^0 Mixing
• Phenomenological Implications of Supersymmetric Family Non-universal U(1)-prime Models
• Studying of B_s^0-\bar{B}_s^0 mixing and B_{s}\to K^{(*)-}K^{(*)+} decays within supersymmetry
• Correlation between direct dark matter detection and Br(B_s -> mu mu) with a large phase of B_s - anti-B_s mixing