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Constraints on New Physics from the Quark Mixing Unitarity Triangle

Abstract : The status of the unitary triangle beyond the standard model including the most recent results on Delta_ms on dilepton asymmetries and on width differences is presented. Even allowing for general new physics loop contributions the unitarity triangle must be very close to the standard model result. With the new measurements from the Fermilab Tevatron, we obtain for the first time a significant constraint on new physics in the Bs sector. We present the allowed ranges of new physics contributions to Delta_F=2 processes and of the time-dependent CP asymmetry in Bs-->J/psiphi decays.
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http://hal.in2p3.fr/in2p3-00113113
Contributor : Claudine Bombar <>
Submitted on : Tuesday, November 28, 2006 - 11:05:13 AM
Last modification on : Wednesday, September 16, 2020 - 4:16:09 PM

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M. Bona, M. Ciuchini, E. Franco, V. Lubicz, G. Martinelli, et al.. Constraints on New Physics from the Quark Mixing Unitarity Triangle. Physical Review Letters, American Physical Society, 2006, 97, pp.151803. ⟨10.1103/PhysRevLett.97.151803⟩. ⟨in2p3-00113113⟩

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