ABSTRACT
The formalism we have developed to discuss the polarization of the photon is applicable to many other problems. We shall consider, as an example, neutral K mesons. These mesons are produced in strong interaction processes like () https://www.w3.org/1998/Math/MathML"> π − + p → Λ 0 + K 0 . https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9780429499265/ff9ae276-bf0f-4700-9154-eaa3ea82fbc6/content/eq258.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>
