Rare meson decays are among the most sensitive probes of both heavy and light new
physics. Among them, new physics searches using kaons benefit from their small total decay …

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

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 …

Scenarios with new physics particles feebly interacting with the Standard Model sector
provide compelling candidates for dark matter searches. Geared with a set of new …

Belle II has reported the first evidence for B+→ K+ ν ν¯ with a branching ratio 2.7 σ higher
than the standard model expectation. We explain this and the MiniBooNE and muon …

This biennial Review summarizes much of particle physics. Using data from previous
editions, plus 2158 new measurements from 551 papers, we list, evaluate, and average …

We systematically study light (< few GeV) dark matter (DM) models that thermalize with
visible matter through the Higgs portal and identify the remaining gaps in the viable …

A bstract Dark matter interacting via the exchange of a light pseudoscalar can induce
observable signals in indirect detection experiments and experience large self-interactions …

New light vectors with dimension-4 couplings to Standard Model states have (energy/vector
mass) 2-enhanced production rates unless the current they couple to is conserved. These …

We derive new constraints on light vectors coupled to standard model (SM) fermions, when
the corresponding SM current is broken by the chiral anomaly. The cancellation of the …