Modified Skyrme Model Without Skyrme Term

摘要

The static properties of nucleons and the mass of the resonance in pi -N scattering are calculated in a modified Skyrme model, which includes a six-order term and another independent quartic-derivative Lagrangian instead of Skyrme term. The predictions for static properties of nucleons are improved and the mass of Roper resonance is closer to the measured value over the original Skyrme model. (author). 11 refs, 1 tab. (Atomindex citation 20:040040)