Current Algebra Theorems for the U(1) Goldstone Boson
作者： E. Witten
DOI: 10.1016/0550-3213(79)90031-2
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摘要: Abstract The U(1) problem is reconsidered from the point of view 1 N expansion. It argued that various heuristic ideas about η′ are valid this view. Current algebra theorems, similar to soft π derived for η′. They lowest order in .
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