A new soft soft-pion theorem for the threshold pion production by a hard electromagnetic probe was derived. The resulting hSPT allows to express the pion-production amplitudes in terms of the distribution amplitudes of the nucleon.
|Original language||English (US)|
|Journal||Physical Review Letters|
|State||Published - Jul 9 2001|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)