Weak axial exchange currents for the Bethe-Salpeter equation

Canada); Czech Republic); Edmonton; E. Truhlik (Institute of Nuclear Physics; F.C.Khanna (Theoretical Physics Institute; Rez n. Prague; University of Alberta

arxiv: nucl-th/9911022 · v2 · submitted 1999-11-05 · ⚛️ nucl-th

Weak axial exchange currents for the Bethe-Salpeter equation

F.C.Khanna (Theoretical Physics Institute , University of Alberta , Edmonton , Canada) , E. Truhlik (Institute of Nuclear Physics , Rez n. Prague , Czech Republic) This is my paper

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keywords bethe-salpetercurrentsequationaxialexchangeweakchiralconstraint

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We construct weak axial one-boson exchange currents for the Bethe-Salpeter equation, starting from chiral Lagrangians of the N-\Delta(1236)-pi-rho-a_1-omega system. The currents fulfil the Ward-Takahashi identities and the matrix element of the full current between the two-body solutions of the Bethe-Salpeter equation satisfies the PCAC constraint exactly.

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Weak axial exchange currents for the Bethe-Salpeter equation

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