The Das-Mathur-Okubo sum rule for the charged pion polarizability in a chiral model

The Adler–Weisberger and Goldberger–Miya

The Adler–Weisberger and Goldberger–Miyazawa–Oehme sum rules as probes of constraints from analyticity and chiral symmetry in dynamical models for pion–nucleon scattering

✍ S. Kondratyuk; K. Kubodera; F. Myhrer; O. Scholten 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 233 KB

The Adler-Weisberger and Goldberger-Miyazawa-Oehme sum rules are calculated within a relativistic, unitary and crossing symmetric dynamical model for pion-nucleon scattering using two different methods: (1) by evaluating the scattering amplitude at the corresponding low-energy kinematics and (2) by