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arXiv · nucl-th/9912075

Implementing PCAC in Nonperturbative Models of Pion Production

Abstract

Traditional few-body descriptions of pion production use integral equations to sum the strong interactions nonperturbatively. Although much physics is thereby included, there has not been a practical way of incorporating the constraints of chiral symmetry into such approaches. Thus the traditional few-body descriptions fail to reflect the underlying theory of strong interactions, QCD, which is largely chirally symmetric. In addition, the lack of chiral symmetry in the few-body approaches means that their predictions of pion production are in principle not consistent with the partial conservation of axial current (PCAC), a fact that has especially large consequences at low energies. We discuss how the recent introduction of the ``gauging of equations method'' can be used to include PCAC into traditional few-body descriptions and thereby solve this long standing problem

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BibTeXRIS

B. Blankleider, A. N. Kvinikhidze. 1999-12-31. Implementing PCAC in Nonperturbative Models of Pion Production. https://arxiv.org/abs/nucl-th/9912075

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