This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Momentum exchange.svg en The scattering amplitude for two fermions one with initial momentum exchanging meson with momentum own Krishnavedala other versions validSVG cczero Uploaded with Feynman diagrams
Page 2023 Free-images.com. All images are Public Domain