$B$ Decays, Flavour Mixings and CP Violation in the Standard Model

TL;DR

This paper reviews the current understanding of B meson decays, focusing on QCD applications, uncertainties, and how experimental results align with the Standard Model's predictions.

Contribution

It provides a comprehensive overview of QCD-based analyses of B decays, highlighting the role of uncertainties and the consistency with the Standard Model.

Findings

QCD methods are crucial for understanding B decays

Theoretical uncertainties impact precision but do not contradict SM

Key measurements support the Standard Model predictions

Abstract

These lectures review the progress made in our present understanding of $B$ decays. The emphasis here is on applications of QCD to $B$ decays and the attendant perturbative and non-perturbative uncertainties, which limit present theoretical precision in some cases but the overall picture that emerges is consistent with the standard model (SM). This is illustrated by quantitatively analyzing some of the key measurements in $B$ physics.