Current status of the Standard Model CKM fit and constraints on $\Delta F=2$ New Physics

Abstract

This letter summarises the status of the global fit of the CKM parameters within the Standard Model performed by the CKMfitter group. Special attention is paid to the inputs for the CKM angles $\alpha$ and $\gamma$ and the status of $B_s\to \mu \mu$ and $B_d\to \mu \mu$ decays. We illustrate the current situation for other unitarity triangles. We also discuss the constraints on generic $\Delta F=2$ New Physics. All results have been obtained with the CKMfitter analysis package, featuring the frequentist statistical approach and using Rfit to handle theoretical uncertainties.

13 pages, 11 figures, 6 tables. Accepted for publication in Phys. Rev. D. arXiv admin note: text overlap with arXiv:1106.4041

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