This paper reports world averages of measurements of b-hadron, c-hadron, and τ τ-lepton
properties obtained by the Heavy Flavour Averaging Group using results available through …

Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

This paper reports world averages of measurements of b-hadron, c-hadron, and τ-lepton
properties obtained by the Heavy Flavor Averaging Group using results available before …

The standard model of particle physics currently provides our best description of
fundamental particles and their interactions. The theory predicts that the different charged …

Tests of lepton universality in B 0→ KS 0 ℓ+ ℓ-and B+→ K*+ ℓ+ ℓ-decays where ℓ is either an
electron or a muon are presented. The differential branching fractions of B 0→ KS 0 e+ e …

We discuss the impact of the recent LHCb update on the two lepton-flavour universality
ratios RK and RK∗, and the CMS update of B (B s→ μ+ μ-) regarding the possibility of New …

The first simultaneous test of muon-electron universality using B+→ K+ ℓ+ ℓ-and B 0→ K* 0
ℓ+ ℓ-decays is performed, in two ranges of the dilepton invariant-mass squared, q 2. The …

An angular analysis of the B 0→ K* 0 (→ K+ π-) μ+ μ-decay is presented using a dataset
corresponding to an integrated luminosity of 4.7 fb-1 of pp collision data collected with the …

A measurement of the ratio of branching fractions of the decays B+→ K+ μ+ μ-and B+→ K+
e+ e-is presented. The proton-proton collision data used correspond to an integrated …

We present an angular analysis of the B+→ K*+(→ KS 0 π+) μ+ μ-decay using 9 fb-1 of pp
collision data collected with the LHCb experiment. For the first time, the full set of CP …