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The hypothesis of a real Cabibbo Kobayashi Maskawa matrix

1999/07/12 by P. Checchia, Checchia, P., E. Piotto +3
Computer Science · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Matrix Theory and Algorithms #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9907300

arxiv created 1999/07/12 · openalex publication_date 1999/07/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The hypothesis of a real Cabibbo-Kobayashi-Maskawa matrix has been considered and found to be disfavoured by present measurements even when neglecting results from CP violation in neutral Kaon decay. The Best Linear Unbiased Estimator has been used as a statistical approach to compute the Confidence Level. A new way to take into account the information from Bs mesons oscillations has been considered, reducing considerably the error on extractions of rho and eta parameter of the Wolfenstain parametrization of the matrix.

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