The CKM Paradigm: Implications of the Most Recent Results

TL;DR

This paper examines recent experimental results in B and K meson systems to assess their impact on the CKM paradigm using a global fit within the Standard Model, highlighting the use of the Rfit approach.

Contribution

It introduces the application of the Rfit frequentist method in CKM analysis and explores potential extensions of the Standard Model based on recent data.

Findings

Constraints on CKM parameters are derived from latest experimental data.

The Rfit approach effectively combines theoretical and experimental uncertainties.

Implications for Standard Model extensions are discussed.

Abstract

The implications of the most recent experimental results in the B and K meson systems on the CKM paradigm are investigated by means of a global fit to the theoretical predictions of the Standard Model. We advocate the frequentist approach Rfit, which is implemented in the CKMFitter package. Within this approach, constraints on the CKM parameters and other quantities of interest are obtained, and extensions of the Standard Model are investigated.