Abstract
The U(1) problem is reconsidered from the point of view of the 1 N expansion. It is argued that various heuristic ideas about the η′ are valid from this point of view. Current algebra theorems, similar to soft π theorems, are derived for the η′. They are valid to lowest order in 1 N.
Original language | English (US) |
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Pages (from-to) | 269-283 |
Number of pages | 15 |
Journal | Nuclear Physics, Section B |
Volume | 156 |
Issue number | 2 |
DOIs | |
State | Published - Sep 3 1979 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics