| Popis: |
The amplitude for the ( p,..pi../sup +/) reaction is calculated in a relativistic one-nucleon model with use of a distorted-wave Born-approximation approach. The nucleon continuum and bound-state wave functions are solutions of Dirac equations with appropriate vector and scalar nuclear potentials. Calculations with the pseudovector ..pi..NN coupling, which satisfies the constraints of partial conservation of the axial-vector current, are in much better agreement with the data than calculations with the simple pseudoscalar coupling. |
