Numerical assessment of post-prior equivalence for inclusive breakup reactions

Abstract

We address the problem of the post-prior equivalence in inclusive breakup reactions induced by weakly bound nuclei. The problem is studied within the distorted-wave Born approximation (DWBA) model of Ichimura, Austern, and Vincent [ Phys. Rev. C 32 , 431 ( 1985 )]. The post and prior formulas obtained in this model are briefly recalled and applied to several breakup reactions induced by deuterons and 6 Li projectiles, to test their actual numerical equivalence. The different contributions of the prior-form formula are also discussed. A critical comparison with the prior-form DWBA model of Udagawa and Tamura [ Phys.Rev.C 24 , 1348 ( 1981 )] is also provided