Wgamma
Wgamma refers to the production of a W boson in association with a photon in high-energy particle collisions. It is an electroweak process predicted by the Standard Model and serves as a probe of the WWγ trilinear gauge coupling and electroweak radiative corrections. Measurements of Wγ production tests the consistency of the gauge structure of the theory and can be sensitive to physics beyond the Standard Model through anomalous couplings.
In proton-proton or proton-antiproton collisions, Wγ production occurs primarily through quark-antiquark annihilation involving the WWγ vertex.
Experimentally, the typical signature is a W boson decaying leptonically (to a charged lepton and a neutrino)
Theoretical work includes calculations at next-to-leading order or higher, modeling of QCD and electroweak corrections, and