Recent progress in B physics

TL;DR

This paper reviews recent advances in B physics, including NLO corrections in QCD factorization, polarization puzzles, CKM unitarity tests, new resonance discoveries, and hadron collider results, highlighting progress and ongoing challenges.

Contribution

It provides a comprehensive overview of recent theoretical and experimental developments in B physics, emphasizing calculations, puzzles, and new measurements.

Findings

NLO corrections to color-suppressed amplitudes are crucial for decay puzzles.

Polarization anomalies in B decays are discussed.

New resonance measurements and hadron collider results are summarized.

Abstract

We firstly address the recent efforts on calculations of the next-to-leading order corrections to the color-suppressed tree amplitude in QCD factorization method which may be essential to solve the puzzles in $B\to \pi\pi$ and $\pi K$ decays. Then we discuss the polarization puzzles in $B\to \phi K^*$ and $\rho K^*$. The impacts of the newly measured $B_s-\bar B_s$ mixing and $B^+\to \tau^+\nu$ on the CKM unitarity triangle global fitting are mentioned. We also briefly review the recent measurements of the new resonances at BaBar and Belle. Finally, some new results from hadron colliders, especially the $b$-flavored hadron spectra, are discussed.