It has been shown recently that, in order to have consistency between some current algebra sum rules, the light-cone expansion leading to Bjorken scaling has to be modified. The required modifications are shown to be consistent with current algebra, but lead to a new scaling regime and to Schwinger terms in σ-commutators. These Schwinger terms appear only in commutators involving nonconserved currents, and may, therefore, provide a natural explanation for the large value of ξ in Kt3-decay, without destroying any of the successful predictions based on current algebra.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Astronomy and Astrophysics