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Gauge Invariance, Chiral Symmetry, and → Odd Numbers of Soft Pions
Phys. Rev. D 5, 1542 – Published 15 March, 1972
DOI: https://doi.org/10.1103/PhysRevD.5.1542
Abstract
Using electromagnetic gauge invariance, chiral symmetry, and the requirement that an amplitude involving soft pions vanish when the neutral-pion four-momentum vanishes (or equivalently that the divergence of the axial-vector current in the symmetry limit be independent of pion fields), a unique expression is derived for the effective Lagrangian describing the interaction of photons with odd numbers of soft pions in arbitrary charge combinations.
References (9)
- R. Aviv, N. D. Hari Dass, and R. F. Sawyer, Phys. Rev. Letters 26, 591 (1971)
- S. L. Adler, B. W. Lee, S. B. Treiman, and A. Zee, Phys. Rev. D 4, 3497 (1971)
- Julius Wess and Bruno Zumino, CERN Report No. CERN-Th-1398
- S. L. Adler, Phys. Rev. 177, 2426 (1969)
- C. R. Hagen, Phys. Rev. 177, 2622 (1969)
Omitted endnote
- R. Aviv and R. F. Sawyer, Phys. Rev. D 4, 451 (1971)
- S. Weinberg, Phys. Rev. 166, 1568 (1968)
- J. Schwinger, Phys. Rev. 82, 664 (1951)