Abstract
Isospin-violating effects arising from a nonvanishing quark mass difference md-mu are discussed, in particular for the +-0 mass-difference question and for 3 and +e+ decays. The role of the strong anomaly is emphasized, and exploited to bring out certain relations among heavy-quark, light-quark, and gluon operator matrix elements. The anomaly suppresses isospin-violating effects that might otherwise be substantial for the Bjorken electroproduction sum rule.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2188-2196 |
| Number of pages | 9 |
| Journal | Physical Review D |
| Volume | 19 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1979 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)