CKM Matrix: Present and Future

TL;DR

This paper reviews the current understanding of the CKM matrix, discussing its determination from various decay processes and exploring future prospects in precision measurements and CP violation studies.

Contribution

It provides a comprehensive overview of the CKM matrix status and compares different methods for its determination, highlighting future research directions.

Findings

CKM matrix from tree-level decays

Unitarity triangle analysis

Potential of rare K and B decays for CKM measurements

Abstract

We review the present status of the CKM matrix and we offer some visions of its future. After a brief presentation of the theoretical framework for weak decays we discuss the following topics: i) CKM matrix from tree level decays, ii) Standard analysis of the unitarity triangle, iii) CKM matrix from rare and CP violating K- and B-decays, iv) CKM matrix from CP violation in two-body B-decays. In particular we compare the CKM potentials of the standard analysis of the unitarity triangle, of the very clean K --> \pi\nu\bar\nu decays and of CP asymmetries in B-decays.