Abstract
Charge-independence breaking due to the pion-mass difference in the (chiral) two-pion-exchange nucleon-nucleon force is investigated. A general argument based on symmetries is presented that relates the charge-symmetric part of that force to the proton-proton case. The static potential linear in that mass difference is worked out as an explicit example by means of Feynman diagrams, and this confirms the general argument.
| Original language | English (US) |
|---|---|
| Article number | 034006 |
| Pages (from-to) | 340061-340064 |
| Number of pages | 4 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 60 |
| Issue number | 3 |
| State | Published - Sep 1999 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics