Delta electroproduction in a chiral bag model approach

摘要

We study the \gamma^* N -> \Delta transition amplitudes in a recoil correctedcloudy bag model approach. A modified Peierls-Thouless projection method isused to construct the Galilean invariant baryon states. The pionic contributionis found to be significant. The effect of the recoil correction is to reducethe magnitude of the transition amplitudes at small momentum transfer and toenhance them at modest momentum transfers.