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First Evidence of New Physics in b↔s Transitions

Abstract : We combine all the available experimental information on B_s mixing, including the very recent tagged analyses of B_s →J/Ψφ by the CDFand DØ collaborations. We find that the phase of the B_s mixing amplitude deviates more than 3σ from the Standard Model prediction. While no single measurement has a 3σ significance yet, all the constraints show a remarkable agreement with the combined result. This is a first evidence of physics beyond the Standard Model. This result disfavours New Physics models with Minimal Flavour Violation with the same significance.
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http://hal.in2p3.fr/in2p3-00308648
Contributor : Sabine Starita <>
Submitted on : Thursday, July 31, 2008 - 3:07:22 PM
Last modification on : Friday, November 20, 2020 - 5:38:01 PM

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M. Bona, M. Ciuchini, E. Franco, V. Lubicz, G. Martinelli, et al.. First Evidence of New Physics in b↔s Transitions. PMC Physics A, 2009, 3, pp.6. ⟨10.1186/1754-0410-3-6⟩. ⟨in2p3-00308648⟩

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