Abstract
The contribution of high-mass states in the dispersion relation for decay amplitudes is considered. A finite dispersion relation (FDR) implemented by duality and finite-energy sum rules (FESR), is suggested as a useful tool for such calculations, and an application to the decay is done in some detail.
| Original language | English |
|---|---|
| Pages (from-to) | 209-212 |
| Number of pages | 4 |
| Journal | Physical Review D |
| Volume | 2 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1970 |