Heavy flavour phenomenology from lattice QCD

TL;DR

This paper reviews recent lattice QCD calculations of heavy flavour parameters, discussing their current status, results, and discrepancies with experimental data, aiming to understand and resolve these differences.

Contribution

It provides an overview of recent lattice QCD results on heavy flavour parameters and discusses efforts to resolve discrepancies with experiments.

Findings

Lattice calculations of B and D decay constants and form factors are summarized.

Some lattice results for Standard Model predictions disagree with experimental measurements.

Ongoing studies aim to understand the origin of these discrepancies.

Abstract

The focus of this report is the lattice calculation of hadronic parameters relevant to heavy flavour phenomenology. I will review recent results and the current status of studies of the B and D decay constants, semileptonic decay form factors, B^0-\bar B^0 mixing, and determinations of the quark masses m_c and m_b. Some studies of heavy flavour observables have used current lattice results to derive Standard Model predictions that seem to disagree with experimental measurements. That is the case, for example, of sin(2\beta) and f_{D_s}. This report discusses efforts to resolvethe origin of those discrepancies from the lattice side.