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Update of the Unitarity Triangle Analysis

Abstract : We present the status of the Unitarity Triangle Analysis (UTA), within the Standard Model (SM) and beyond, with experimental and theoretical inputs updated for the ICHEP 2010 conference. Within the SM, we find that the general consistency among all the constraints leaves space only to some tension (between the UTA prediction and the experimental measurement) in BR(B -> tau nu), sin(2 beta) and epsilon_K. In the UTA beyond the SM, we allow for New Physics (NP) effects in (Delta F)=2 processes. The hint of NP at the 2.9 sigma level in the B_s-\bar B_s mixing turns out to be confirmed by the present update, which includes the new D0 result on the dimuon charge asymmetry but not the new CDF measurement of phi_s, being the likelihood not yet released.
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Contributor : Sabine Starita <>
Submitted on : Monday, March 28, 2011 - 11:29:57 AM
Last modification on : Friday, November 20, 2020 - 5:38:01 PM

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  • HAL Id : in2p3-00580427, version 1
  • ARXIV : 1010.5089



A. Bevan, M. Bona, M. Ciuchini, D. Derkach, E. Franco, et al.. Update of the Unitarity Triangle Analysis. 35th International Conference on High Energy Physics (ICHEP2010), Jul 2010, Paris, France. 270 (4 p.). ⟨in2p3-00580427⟩



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