On isovector meson exchange currents in the Bethe-Salpeter approach

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dc.creatorBondarenko, S. G.
dc.creatorBurov, V. V.
dc.creatorBeyer, M.
dc.creatorDorkin, S. M.
dc.date1998-09-12
dc.date.accessioned2026-07-07T11:11:51Z
dc.date.available2026-07-07T11:11:51Z
dc.descriptionWe investigate the nonrelativistic reduction of the Bethe-Salpeter amplitude for the deuteron electrodisintegration near threshold energies. To this end, two assumptions have been used in the calculations: 1) the static approximation and 2) the one iteration approximation. Within these assumptions it is possible to recover the nonrelativistic result including a systematic extension to relativistic corrections. We find that the so-called pair current term can be constructed from the $P$-wave contribution of the deuteron Bethe-Salpeter amplitude. The form factor that enters into the calculation of the pair current is constrained by the manifestly gauge independent matrix elements.
dc.description15 pages, incl. 3 figures, to be published Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-th/9809037
dc.identifierhttp://arxiv.org/abs/nucl-th/9809037
dc.identifierPhys.Rev.C58:3143-3152,1998
dc.identifierdoi:10.1103/PhysRevC.58.3143
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191233
dc.subjectNuclear Theory
dc.titleOn isovector meson exchange currents in the Bethe-Salpeter approach
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