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” …

A comprehensive overview of kaon decays is presented. The standard model predictions
are discussed in detail, covering both the underlying short-distance electroweak dynamics …

Precision tests of first-row unitarity of the Cabibbo–Kobayashi–Maskawa matrix currently
display two intriguing tensions, both at the 3σ level. First, combining determinations of V ud …

We review progress in the study of antinuclei, starting from Dirac's equation and the
discovery of the positron in cosmic-ray events. The development of proton accelerators led …

Implications for Cabibbo universality based on progress in the study of semileptonic kaon
and pion decays are discussed. Included are recent updates of experimental input along …

A bstract We analyse for the first time the CP violating ratio ε′/ε in K→ ππ decays in
leptoquark (LQ) models. Assuming a mass gap to the electroweak (EW) scale, the main …

A bstract We study the patterns of flavour violation in renormalisable extensions of the
Standard Model (SM) that contain vector-like quarks (VLQs) in a single complex …

Kaon physics is at a turning point–while the rare-kaon experiments NA62 and KOTO are in
full swing, the end of their lifetime is approaching and the future experimental landscape …

We present a lattice QCD calculation of the Δ I= 1/2, K→ π π decay amplitude A 0 and ϵ′,
the measure of direct CP violation in K→ π π decay, improving our 2015 calculation of these …

We analyze D decays to two pseudoscalars (π, K) assuming the dominant source of SU (3) F
breaking lies in final state interactions. We obtain an excellent agreement with experimental …