Present knowledge of the Cabibbo-Kobayashi-Maskawa matrix

M. Bargiotti; A. Bertin; M. Bruschi; M. Capponi; S. De Castro; R. Dona'; P. Faccioli; D. Galli; B. Giacobbe; U. Marconi; I. Massa; M. Piccinini; M. Poli; N. Semprini-Cesari; R. Spighi; V. Vagnoni; S. Vecchi; M. Villa; A. Vitale; A. Zoccoli

doi:10.1007/bf03548883

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arXiv · hep-ph/0001293

Present knowledge of the Cabibbo-Kobayashi-Maskawa matrix

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Abstract

A complete review of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements and of the experimental methods for their determination is presented. A critical analysis of the relevant experimental results, and in particular of the most recent ones, allows to improve the accuracies of all the matrix elements. A chi-square minimization with the three-family unitarity constraint on the CKM matrix is performed to test the current interpretation of the CP violating phenomena inside the Standard Model. A complete and unambiguous solution satisfying all the imposed constraints is found. As a by-product of the fit, the precision on the values of the matrix elements is further increased and it is possible to obtain estimates for the important CP violation observables $sin 2β$, $sin 2α$ and $γ$. Finally, an independent estimation of the CKM elements based on a Bayesian approach is performed. This complementary method constitutes a check of the results obtained, providing also the probability functions of the CKM elements and of the related quantities.

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M. Bargiotti, A. Bertin, M. Bruschi, M. Capponi, S. De Castro, R. Dona', P. Faccioli, D. Galli, B. Giacobbe, U. Marconi, I. Massa, M. Piccinini, M. Poli, N. Semprini-Cesari, R. Spighi, V. Vagnoni, S. Vecchi, M. Villa, A. Vitale, A. Zoccoli. 2001-03-13. Present knowledge of the Cabibbo-Kobayashi-Maskawa matrix. https://doi.org/10.1007/bf03548883

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