Specialized data-taking and data-processing techniques were introduced by the CMS
experiment in Run 1 of the CERN LHC to enhance the sensitivity of searches for new …

At the present time (2022), there are discrepancies with the predictions of the Standard
Model in several observables involving b→ s ℓ+ ℓ− and decays. These are the B flavor …

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 …

High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large
number of particles along the beam collision axis, outside of the acceptance of existing LHC …

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 …

The LHCb Collaboration has recently released a new study of B+→ K+ ℓ+ ℓ-and B→ K* 0 ℓ+
ℓ-(ℓ= e, μ) decays, testing lepton universality with unprecedented accuracy using the whole …

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 …

The first simultaneous test of muon-electron universality using B þ→ K þlþl− and B 0→ K
Ã0lþl− decays is performed, in two ranges of the dilepton invariant-mass squared, q 2. The …

An angular analysis of the B0→ 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 …