Dispersion Approach to Anomalies in the Axial-Vector Ward-Takahashi Identities
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概要
- 論文の詳細を見る
On the basis of dispersion relations and unitarity anomalous Ward-Takahashi identitiesfor the axial-vector current are derived in quantum electrodynamics. In this derivation use of divergent unrenormalized expressions is intentionally avoided, and only finite renormalized expressions are employed from the start. The origin of the anormalies is attributed to a mismatch of the subtraction conditions present in the naive Ward-Takahashi identities. The resulting anomalous Ward-Takahashi identities are valid in every order of the perturbation expansion and can be cast in the form of an operator equation. In the course of this derivation we encounter the problem of how to regularize operator products and a possible solution of this problem is provided in terms of subtraction conditions.
- 理論物理学刊行会の論文
- 1975-01-25
著者
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Sasaki Ryu
Department Of Cardiovascular Medicine Fujisawa City Hospital
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Nishijima K
Univ. Tokyo Tokyo Jpn
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Nishijima Kazuhiko
Department Of Physics Chuo University
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NlSHIJIMA Kazuhiko
Department of Physics, University of Tokyo
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Nlshijima Kazuhiko
Department Of Physics University Of Tokyo
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NISHIJIMA Kazuhiko
Department of Physics, University of Tokyo : Research Institute for Fundamental Physics, Kyoto University
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SASAKI Ryu
Uji Research Center, Yukawa Institute for Theoretical Physics Kyoto University:Department of Mathematical Sciences, University of Durham
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